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USER
MANUAL
Modular Portable Multi-Gas Detector
with Internal Pump
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Contents
Ch 1. Introduction ........................................................................................................................................................ 5
1.1. Product Registration ........................................................................................................................................... 5
1.1.1. Standards and Certifications ........................................................................................................................ 5
1.1.2. IMPORTANT! BUMP TEST THE MONITOR BEFORE EACH DAY’S USE ................................................................. 7
1.1.3. Special Notes .............................................................................................................................................. 7
Ch 2. General Information ............................................................................................................................................ 7
2.1. Key Features ...................................................................................................................................................... 8
2.2. Physical Description ........................................................................................................................................... 8
Ch 3. Charging the device ............................................................................................................................................. 8
3.1. The Battery Pack ................................................................................................................................................ 8
3.2. Charging Mode Selection .................................................................................................................................... 9
3.3. Normal Charging Mode ....................................................................................................................................... 9
3.4. Green Charging Mode ....................................................................................................................................... 10
3.5. Measuring Charging Mode ................................................................................................................................ 10
3.6. Real Time Clock Battery .................................................................................................................................... 10
3.7. Data Protection while power is o. .................................................................................................................... 11
Ch 4. Basic Operations ............................................................................................................................................... 12
4.1. Turning the instrument ON ................................................................................................................................ 12
4.2. Turning the instrument OFF ............................................................................................................................... 12
4.3. Alarm Check .................................................................................................................................................... 12
4.4. IntelliFlash™ and Comfort Beep ......................................................................................................................... 13
4.5. User ID and Login ............................................................................................................................................. 13
4.5.1. Guest Access ............................................................................................................................................ 13
4.5.2. Login Requirement ..................................................................................................................................... 14
4.5.3. Login Methods ........................................................................................................................................... 14
Ch 5. User Interface ................................................................................................................................................... 15
5.1. Status Bar ........................................................................................................................................................ 15
5.1.1. Battery Status Icons ................................................................................................................................... 15
5.1.2. Data logging Status Icons ........................................................................................................................... 16
5.1.3. Pump Status Icons ..................................................................................................................................... 16
5.1.4. Man-Down Alarm Icons .............................................................................................................................. 16
5.1.5. Panic Alarm or SOS alarm Icons. ................................................................................................................. 16
5.1.6. BLE Status Icons ........................................................................................................................................ 16
5.1.7. Wireless Module Status Icons ..................................................................................................................... 17
5.1.8. GNSS Status Icons ..................................................................................................................................... 17
5.1.9. Other Status Icons ..................................................................................................................................... 17
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5.2. Screen Display ................................................................................................................................................. 17
5.2.1. Normal View .............................................................................................................................................. 18
5.2.2. Focus View ................................................................................................................................................ 18
5.2.3. Alarm Normal and Focus View .................................................................................................................... 18
5.2.4. Sensor Fault .............................................................................................................................................. 18
5.2.5. Over Range and negative Drift Alarms ......................................................................................................... 19
Ch 6. Operating The Instrument .................................................................................................................................. 19
6.1. Turning the Instrument ON ................................................................................................................................ 19
6.2. Turning the Instrument OFF............................................................................................................................... 19
6.3. Auto-Zero at Startup ......................................................................................................................................... 19
6.4. Operating the built-in flashlight ......................................................................................................................... 19
6.5. Leakage Check ................................................................................................................................................ 20
6.6. Calibration Status ............................................................................................................................................ 20
6.7. Bump Status .................................................................................................................................................... 20
6.8. Glance Mode ................................................................................................................................................... 21
6.9. Policy Enforcement .......................................................................................................................................... 21
6.9.1. Setting Policy Enforcement ......................................................................................................................... 22
Ch 7. Operation Modes ............................................................................................................................................... 23
7.1. Safety Mode ..................................................................................................................................................... 23
7.1.1. Switching between Health and Safety Modes ............................................................................................... 23
7.1.2. User Interface ............................................................................................................................................ 24
7.1.3. Survey Measurement in Safety Mode ........................................................................................................... 24
7.1.4. Object Measurement ................................................................................................................................. 25
7.1.5. Compound Specific Measurement .............................................................................................................. 25
7.1.6. Separation tube preparation ....................................................................................................................... 26
7.1.7. Inserting the separation tube ...................................................................................................................... 26
7.2. Integrated Sampling Pump ................................................................................................................................ 27
7.3. Datalogging ..................................................................................................................................................... 27
Ch 8. Standard Kit and Accessories ............................................................................................................................. 29
8.1. Standard Kit ..................................................................................................................................................... 29
8.1.1. AC adapter (battery charger) ....................................................................................................................... 29
8.1.2. External Filter ............................................................................................................................................ 29
Ch 9. Calibration ........................................................................................................................................................ 30
9.1.1. Zero Calibration ......................................................................................................................................... 30
9.1.2. Span Calibration procedure ........................................................................................................................ 30
9.1.3. Calibration Settings ................................................................................................................................... 31
9.1.4. Three Point Calibration ............................................................................................................................... 32
9.2. Bump Test Procedure ....................................................................................................................................... 32
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Ch 10. Device settings ................................................................................................................................................ 34
10.1. General Settings ............................................................................................................................................. 34
10.1.1. Date & Time Settings ................................................................................................................................ 34
10.1.2. Language Settings .................................................................................................................................... 35
10.1.3. Exit Duration ............................................................................................................................................ 35
10.1.4. Display Behaviour settings........................................................................................................................ 35
10.1.5. Flashlight ................................................................................................................................................ 35
10.1.6. Policy Enforcement .................................................................................................................................. 36
10.1.7. Battery Settings ....................................................................................................................................... 36
10.2. Battery Specifications .................................................................................................................................... 37
10.3. Device Specifications ..................................................................................................................................... 37
10.4. Sensor Specifications ..................................................................................................................................... 37
10.5. Appendix ....................................................................................................................................................... 37
10.5.1. Table of Figures ........................................................................................................................................ 37
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CH 1. INTRODUCTION
1.1. Product Registration
Register your product online by visiting.
https://sps.honeywell.com/us/en/support/safety/hgas-product-registration
By registering your product, you can:
1. Receive notification of product upgrades or enhancements
2. Be alerted to Training classes in your area
3. Take advantage of Honeywell special oers and promotions
1.1.1. Standards and Certifications
Intrinsic Safety placeholder
FCC Information placeholder
Read Before Operating
This manual must be carefully read by all individuals who have or will have the responsibility of using, maintaining, or
servicing this product. The product will perform as designed only if it is used, maintained, and serviced in accordance with
the manufacturer’s instructions. The user should understand how to set the correct parameters and interpret the obtained
results.
CAUTION!
To reduce the risk of electric shock, turn the power o before opening this instrument or performing service. Never
operate the instrument when the instrument is open. Service this product only in an area known to be non-
hazardous.
WARNING!
ATEX: To reduce the risk of electrostatic ignition, do not use the instrument without the rubber boot in place.
STATIC HAZARD: Clean only with damp cloth.
For safety reasons, this equipment must be operated on and serviced by qualified personnel only. Read and
understand instruction manual completely before operating or servicing.
USE ONLY HONEYWELL BATTERY PACKS, PART NUMBERS XXX-XXXX-XXX. THIS INSTRUMENT HAS NOT BEEN TESTED
IN AN EXPLOSIVE GAS/AIR ATMOSPHERE HAVING AN OXYGEN CONCENTRATION GREATER THAN 21%.
SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY. RECHARGE BATTERIES ONLY IN NON-
HAZARDOUS LOCATIONS.
DO NOT MIX OLD AND NEW BATTERIES OR BATTERIES FROM DIFFERENT MANUFACTURERS.
THE CALIBRATION OF ALL NEWLY PURCHASED HONEYWELL INSTRUMENTS SHOULD BE TESTED BY EXPOSING THE
SENSOR(S) TO KNOWN CONCENTRATION CALIBRATION GAS BEFORE THE INSTRUMENT IS PUT INTO SERVICE.
FOR MAXIMUM SAFETY, THE ACCURACY OF THE INSTRUMENT SHOULD BE CHECKED BY EXPOSING IT TO A KNOWN
CONCENTRATION CALIBRATION GAS BEFORE EACH DAY’S USE.
DO NOT USE USB/PC COMMUNICATION IN HAZARDOUS LOCATIONS.
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P
roper Product Disposal at End of Life
E
U Directive 2012/19/EU: Waste Electrical and Electronic Equipment (WEEE)
This symbol indicates that the product must not be disposed of as general industrial or domestic waste. This
product should be disposed of through suitable WEEE disposal facilities. For more information about
disposal of this product, contact your local authority, distributor, or the manufacturer.
CAUTION
FCC compliance statement:
This device complies with Part 15 of the FCC Rules / Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
IC (ISED) compliance statement:
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic
Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause undesired operation of the
device.
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation,
Sciences et Développement économique Canada applicables aux appareils radio exempts de licence.
L’exploitation est autorisée aux deux conditions suivantes :
1) L’appareil ne doit pas produire de brouillage;
2) L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en
compromettre le fonctionnement.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment o and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and
maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to
other users, the antenna type and its gain should be so chosen that the equivalent isotopically radiated power
(e.i.r.p.) is not more than that necessary for successful communication.
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1.1.2. IMPORTANT! BUMP TEST THE MONITOR BEFORE EACH DAY’S USE
Prior to each day’s use, every gas detection monitor should be bump tested to confirm the response of all sensors and
activation of all alarms by exposing the monitor to a concentration of target gas that exceeds the low alarm set point. A
bump test is also recommended if the monitor has been subjected to physical impact, liquid immersion, an Over Limit
alarm event, or custody changes, or anytime the monitor’s performance is in doubt. To ensure greatest accuracy and
safety, only bump test and calibrate in a fresh air environment. The monitor should be calibrated every time it does not
pass a bump test, but no less frequently than every six months, depending on use and exposure to gas and contamination,
and its operational mode.
Calibration intervals and bump test procedures may vary due to national legislation.
Honeywell recommends using calibration gas cylinders containing the gas that is appropriate to the sensor you
are using, and in the correct concentration.
1.1.3. Special Notes
When the instrument is taken out of the transport case and turned on for the first time, there may be
some residual organic or inorganic vapor trapped inside the detector chamber. The initial PID sensor
reading may indicate a few ppm. Enter an area known to be free of any organic vapor and turn on the
instrument. After running for several minutes, the residual vapor in the detector chamber will be cleared
and the reading should return to zero.
The battery of the instrument discharges slowly even if it is turned o. If the instrument has not been
charged for 5 to 7 days, the battery voltage will be low. Therefore, it is a good practice to always charge the
instrument before using it. It is also recommended to fully charge the instrument for at least 10 hours
before first use. Refer to this User Guide’s section on battery charging for more information on battery
charging and replacement.
Standard Package Content
• Instrument
• Wrist Strap
• Water Trap (45mm)
• NFC Tag Keyring
• Type C to Type C cable with magnetic adapter
• Type C power adapter (US, UK, Europe, ANZ, China)
• Porous metal filters
• PID Lamp Cleaning Kit
• Organic Vapor Zeroing Kit
• T-tube with Tygon Tube
• Screwdriver
Scan QR Code on the peel-o screen protection for the quick start guide and User Manual
CH 2. GENERAL INFORMATION
The modular instrument serves as a broadband VOC gas monitor and datalogger suitable for hazardous environments. It
detects Volatile Organic Compounds (VOC) using a photoionization detector (PID) equipped with a 9.8eV, 10.6eV, or
11.7eV gas-discharge sensor. The device features a sensor cartridge containing the PID sensor, a microcontroller, and
electronic circuitry. Its rugged enclosure houses a 3.5-inch TFT color LCD screen and three keys for straightforward user
operation. Additionally, it includes a built-in flashlight to facilitate use in dark conditions.
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2.1. Key Features
Modular Design
4. Highly modular and versatile multi-threat gas detector.
5. Rugged and compact design with built-in draw pump.
Advanced Connectivity
6. Real-Time monitoring using advanced wireless connectivity
7. Datalogging capabilities with automated data upload
User-friendly
8. Preset alarm thresholds for STEL, TWA, low- and high-level peak values.
9. Audio buzzer and flashing LED display are activated when the limits are exceeded.
2.2. Physical Description
The main components of the portable VOC monitoring instrument include:
10. Easy replaceable sensors cartridge with quick release buttons
11. Three contextual keys for user interaction with the instrument
12. 3.5inch TFT colored LCD display with ambient light sensor for optimizing the display readability
13. Built-in flashlight for illuminating testing points in dark environments
14. Buzzer, vibrator and red LEDs for alarm signaling whenever exposures exceed preset limits
15. USB type C charging and communication port for PC interface
16. Standard BLE and NFC reader with pre-programmed NFC tags for easy user assignment
17. Independent external wireless module for advanced connectivity and easy upgrade and exchange
18. Gas entry and exit ports
19. Multi color Protective rubber cover
20. Easy-to-use separation tube holder
21. Wrest strap and hand strap
CH 3. CHARGING THE DEVICE
The device has three charging modes explained below. Ensure the battery is fully charged before operating the instrument.
3.1. The Battery Pack
The device is equipped with 5700mAh 3.7V polymer Li-Ion rechargeable battery. Battery packs can be charged individually
via the supplied charger or while it is installed in the device. To charge the instrument’s Li-ion battery, connect the supplied
USB Type-C cable to the battery This flexibility allows users to recharge the battery according to their operational needs
and convenience.
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The battery's LED indicates the status as show in Table 1below.
Table 1: Battery LED
Flashing green means charging
Solid green indicates fully charged
Solid red signals a charging error
If the red light appears, unplug the cable and contact your service
provider, as errors may result from temperature issues, low or high
voltage, poor connections, or insuicient input power.
Please note: The provided cable is a two-piece design featuring a magnetic connection. Ensure the smaller segment is
correctly inserted into the battery. The cable does not require a specific orientation. While a standard non-magnetic USB
Type-C cable may be used, this will leave the battery port exposed; therefore, it is recommended to use the supplied cable
to maintain proper seal of the battery port. You can use either Type-C to Type-C cable or Type-A to Type-C cable for
charging. Please refer to section 10.2 in the appendix for battery pack specifications.
3.2. Charging Mode Selection
The device is initially set to normal charging mode. Users may select their preferred charging mode from the settings
menu, as illustrated in Figure 2 below.
3.3. Normal Charging Mode
The instrument may be switched to the standard charging mode. In this mode, measurement functions are disabled, and
both the MCU and display switch their power to decrease battery charging time. USB communication remains active,
while IntelliFlash™ and other non-essential features are deactivated to expedite the charging process. The charging screen,
illustrated in Error! Reference source not found., presents the current charging percentage and estimates the runtime
based on the previous 24 hours of operation and power consumption, which varies with the functions used during that
period.
When power is connected to the device, charging will begin whether the instrument is powered on or o. If the device is o
when charging commences, the display will indicate charging status as depicted in Error! Reference source not found.,
and all other functions, such as the pump and sensors, will remain disabled. Upon disconnecting the device from the
power source, the screen will turn o automatically.
If the device is powered on during charging, the screen will display charging status as shown in Error! Reference source
not found., and both the pump and sensors will shut down. Once disconnected from power, the device will revert to its
pre-charging state.
Figure 2: Charging Mode Selection
Figure 1: ModRAE Battery
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When fully charged, the screen will show a full charge indication as seen in Error! Reference source not found.. If a
charging fault occurs, the device will display an error message as illustrated in Figure 5.
WARNING!
To reduce the risk of ignition of hazardous atmospheres, recharge and replace batteries only in areas known to be
non-hazardous. Remove and replace batteries only in areas known to be non-hazardous.
3.4. Green Charging Mode
When the device is configured to green charging mode and connected to power while powered o, only the LED indicators
display the charging status; the screen remains inactive. If the device is powered on with green charging mode enabled
and plugged in, it will operate identically to normal or standard charging mode.
3.5. Measuring Charging Mode
When the device is operating in measuring charging mode, users can continue measurements while
the device charges. This mode is intended for situations where prolonged operation is required
beyond the available battery capacity. During measuring charging mode, the display will
continuously show measurement data, with only the charging icon indicating active battery
charging. Upon selecting this mode and connecting power to charge the battery, the device will
display a notification stating that measuring charging mode does not comply with hazardous area
requirements as shown in Figure 6. Users must acknowledge this notification, and their
acknowledgment will be recorded in the device's data log.
3.6. Real Time Clock Battery
An internal Real Time Clock (RTC) battery is installed on the instrument’s printed circuit boards. This high-quality, long-
lasting battery preserves settings in memory when the Li-ion battery is removed. The backup battery has an estimated
lifespan of five years and should be replaced exclusively by an authorized Honeywell service technician. User replacement
is not permitted.
Figure 5: Charging
Error
Figure 6: Measuring
Charging Mode
Figure 3: Charging
in Progress
Figure 4: Fully
Charged
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3.7. Data Protection while power is off.
Upon turning o the instrument, all real-time information, including the most recent measurements, is cleared.
Nonetheless, data log and event log entries remain securely stored in non-volatile memory. The data log and event log data
will be retained even if the battery is removed or replaced.
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CH 4. BASIC OPERATIONS
4.1. Turning the instrument ON
1. Ensure the battery pack is inserted properly and the instrument is switched o.
2. Press and hold the power button until the display activates, then release the button.
3. The device will power on, the LED will flash and the busser will sound.
4. The instrument is now operating and performs self-tests. Once the self-tests are complete, the login screen will
appear, prompting the user to log in. There are multiple methods available for accessing the device—please refer
to section 0 below for further details.
Upon initial activation of the instrument, the user is required to select the language, date, and time. Figure 7 below
illustrates the initial setup screens that the user must proceed through before beginning use of the device. The instrument
will also perform several functionality checks like the RTC check, Accelerometer check, Microphone check, Ambient light
sensor check, THP sensor check, BLE module check, Wireless module checks and flow rate check and adjustment.
4.2. Turning the instrument OFF
1. Press and hold the power button key for 3 seconds.
2. A 3-second countdown to shuto begins.
3. Once the countdown stops, the buzzer will sound again, and the LED will flash red and the instrument will shut
down. Release the power button.
Note: You must hold your finger on the key for the entire shuto process. If you remove your finger from the key during
the countdown, the shuto operation is canceled, and the instrument continues normal operation.
4.3. Alarm Check
Upon each activation, the device conducts an automatic check
of all alarms—including the buzzer, LED, and vibrator—to verify
proper functioning. Users also have the option to manually test
the alarms and can adjust the pass criteria via threshold
confirmation. The instrument’s verification process utilizes a
light sensor for the LED, an acceleration sensor for vibration,
and a microphone for the buzzer. If any component fails the
automatic alarm check, the instrument will display one or
more screens as shown in Figure 8, prompting the user to
Figure 8: Alarm Check Message
Figure 7: Out of The Box Screens
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either accept the alarm status or repeat the test. If the user opts to retry, the unit will perform the test again, continuing
this cycle until the alarms pass. Once all tests are successfully completed, normal device operation may proceed.
4.4. IntelliFlash™ and Comfort Beep
The IntelliFlash™ and Comfort Beep are designed to oer visual and audible confirmations that the ModRAE™ device is
operating correctly and remains compliant. The IntelliFlash™ utilizes four distinct colors within ModRAE™, as illustrated in
Figure 9 below. The accompanying table provides detailed explanations of each color.
Table 2: Intuitive IntelliFlash™ Colors
Green
22. The detector is functioning correctly to monitor gas levels
23. The comfort beep operates in conjunction with the green LED flash.
Red
24. Instrument is in Alarm
Yellow
25. Detector can’t measure gas when in special status
26. Instrument or sensors has a specific error and requires the attention
of the user.
Blue
27. A new incoming message is in the Inbox
28. BLE pairing mode.
Note: The IntelliFlash™ interval can be configured by the user between 1 and 60 seconds, with a default setting of 5
seconds and a flash duration of 20 milliseconds. The comfort beep is also user configurable within the same range,
defaulting to 5 seconds and featuring a beep duration of 20 milliseconds.
4.5. User ID and Login
For all gas monitoring applications and measurement data logging must be associated with a user ID. Before an
instrument can be used for monitoring, a user must log in after the device is powered on.
4.5.1. Guest Access
For certain applications, a guest role which appears in the user list as “Guest” can be used to log in. Guest logins are
anonymous and do not require authentication credentials. Figure 10 below illustrates the process of logging in as a Guest.
The “Guest” account has the following characteristics:
29. Always appears in the user list as “Guest” and can’t be deleted.
30. User type: Basic
31. Application mode: Health &
Safety
32. Measurement data recorded
under Guest login is
anonymous.
Figure 9: IntelliFlash
Figure 10: Guest User Login
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4.5.2. Login Requirement
User login is a mandatory standard process and cannot be enabled or disabled. Users are categorized with Basic or
Advanced privileges, which determine available functions and application modes.
4.5.3. Login Methods
Approach 1: NFC Tag Login
The instrument is supplied with three NFC tags with administrator rights:
33. Username: Admin
34. Passcode: 1111
35. User type: Advanced
36. Application mode: Health & Safety
When the instrument displays the login screen, hold an authorized NFC
tag near the reader to log in. NFC tags are:
37. Assigned by an Administrator
38. Rewritable using Device Configuration (DC) app.
39. NFC login does not require a passcode.
40. The NFC tag must be specifically configured for instrument login.
Approach 2: Username and Password Login
Users can also log in by selecting their name from a user list and entering a passcode as shown in Figure 13 below. The
user list is created from:
41. NFC-based logins
42. Safety Suite Software or DC app.
The list supports up to 10 users and is managed automatically using a Last-In, First-Out (LIFO) order. Each user record
includes:
43. Username (up to 12 characters)
44. Passcode (required for list-based login only)
45. User type: Basic or Advanced
46. Operation Mode: Health Mode, Safety Mode, or Health & Safety Modes
Figure 11: NFC Tag
Figure 12: Scan NFC to Log in
Figure 13: User Login with Passcode
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CH 5. USER INTERFACE
The user interface of the instrument is comprised of a 3.5inch display, LED
indicators, an alarm transducer, and four keys. Three keys are located on the front
panel, while the fourth is positioned on the side of the device and is distinctly
labeled with a high-visibility color.
Table 3: ModRAE front panel
1
LCD screen
2
Programmable Button/key (SOS/Panic Alarm by default)
3
Left contextual button/key
4
Power Button/key
5
Right contextual button/key
6
IntelliFlash™ LED
The front panel features three buttons, each identified by embossed letters: “L” for
the left button, “R” for the right button, and mark for the middle button referred
to as the “Power” button. These buttons are contextual; their functions vary
depending on the current display screen. Please refer to the icon shown on the
bottom part of the display, which denotes the specific functionality of each button for that particular screen. Figure 15
displays various contextual menu icons that may appear above the buttons on
the display screen. The functions of these icons will be described in detail within
subsequent sections as they become relevant.
5.1. Status Bar
The upper section of the display serves as the status bar
(Figure 16), presenting various icons that indicate the status
of functions such as time, battery level, pump operation,
wireless module status, and more. The following sections will
detail each icon that may appear in the status bar and provide an explanation of its significance.
5.1.1. Battery Status Icons
The battery status icons are described in the table below and are prominently displayed on the status bar using distinct
colors to ensure users can easily identify the battery's status without referencing numerical values. A white icon signifies
standard battery operation; green indicates that the device is charging; amber denotes that the battery requires attention;
and red signals a critically low battery level.
Table 4: Battery Status Icons
The device is functioning within standard parameters. Battery runtime is presented in hours and minutes,
based on the consumption rate monitored over the preceding 24-hour period.
Battery operating normally. Battery charge capacity is indicated as a percentage.
Battery level is low, with limited runtime remaining.
Battery Low status indicating remaining charge capacity as a percentage.
Battery level is critically low, with remaining percentage indicated.
Battery charging status with indicated percentage
The battery is unable to charge (Error)
Figure 14: ModRAE Front Panel
Figure 15: Contextual Button Icons
Figure 16: Status Bar
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5.1.2. Data logging Status Icons
The data log status icon is presented in two colors: white signifies normal operation, whereas amber indicates that user
attention is required for this feature.
Table 5: Data log Status Icons
The data log is operational and functioning as expected.
A data log error has occurred.
The data log has reached its capacity (full)
If the data log feature is not enabled, the corresponding icon will not appear on the screen.
Please be advised that the data log is nearing capacity (Prewarning)
5.1.3. Pump Status Icons
The integrated pump status icons utilize two distinct colors for indication. A white icon signifies normal pump operation,
while an amber icon denotes a blocked pump, as demonstrated in the following table.
Table 6: Integrated Pump Status Icons
Integrated pump operating under standard conditions
The integrated pump is experiencing a blockage.
When the pump is deactivated, the corresponding icon will not be shown.
Pump Alert: The flow rate is currently below the specified requirement.
5.1.4. Man-Down Alarm Icons
The man-down alarm is consistently displayed in red to indicate its alert status. Two distinct icons are used to signify
transmission via wireless communication if the device includes a wireless module and is connected to the system.
Table 7: Man-Down Alarm Status Icons
The Man-Down alarm is currently active. If the device is connected, this indicates that the alarm has been
successfully transmitted.
A Man-Down alarm is currently being transmitted.
5.1.5. Panic Alarm or SOS alarm Icons.
Panic alarm icons consistently appear in red to signify their alarm status. These icons reflect whether a panic alarm has
been sent, provided that the device is equipped with a wireless module and connected to the system.
Table 8: SOS/Panic Alarm Status Icons
The Panic/SOS alarm is currently active. If the device is connected, the alarm has been transmitted
successfully.
A panic or SOS alarm is currently being transmitted.
5.1.6. BLE Status Icons
The BLE status icon appears in either blue or white to indicate the module's current state. The table below provides an
overview of the various icons associated with the BLE module.
Table 9: BLE Status Icons
BLE is ON but it is disconnected
BLE is ON and connected
BLE is OFF
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5.1.7. Wireless Module Status Icons
The device may be fitted with a wireless module supporting various protocols, such as LTE or LoRa. The icons displayed in
the status bar will reflect the current state of the wireless module and its connectivity.
Table 10: Wireless Status Icons
LTE is ON but disconnected
LTE is ON and connected
LTE is OFF
LoRa is ON but disconnected
LoRa is ON and connected
LoRa is OFF
Mesh is ON and disconnected
Mesh is ON and connected. Signal Strength indicated with the number of bars shown
Mesh is OFF
Wi-Fi is ON and disconnected
Wi-Fi is ON and connected
Wi-Fi is OFF
If a wireless module is not installed, the corresponding icon will not be displayed.
5.1.8. GNSS Status Icons
Each wireless module option for ModRAE™ is equipped with a GNSS module, enabling precise positional coordination of
the device. The operational status of the GNSS module functions independently of the wireless module’s connectivity,
necessitating a dedicated icon to convey GNSS status information to users.
Table 11: GNSS Status Icons
GNSS is ON, no satellite is found
GNSS is ON and satellite is found and connected
GNSS is OFF
If a GNSS module is not installed, no icons will be displayed.
5.1.9. Other Status Icons
Additional icons are utilized to present information on the device screen. The following table provides an overview of the
various icons that may appear on the device display.
The message has been received but remains unread.
Policy Compliance Indicator (Device adheres to the specified policy)
5.2. Screen Display
The screen oers two display modes: normal view and focus view. When an alarm is triggered, the display can remain in
normal view, presenting the status of all sensors, or switch to focus view, which highlights only the sensors in alarm. The
default setting for Alarm Normal View or Alarm Focus View can be configured within the settings menu.
18 | Page
5.2.1. Normal View
The Normal view provides a dashboard like view for all the installed and activated
sensors where the user can see the measured gas, the real time concentration of the
gas and the unit of measure.
Table 12: Normal View
1
Measured Gas Symbol
2
Real Time Reading
3
Units of measure
4
Low Alarm Setpoint
5
High Alarm Setpoint
6
Gas Level Indicator
7
Additional Information
8
Switch to Focus View
5.2.2. Focus View
In normal view, clicking the left button allows the user to switch to focus view. In this mode, each installed and active
sensor is presented individually on a dedicated screen with supplementary
information, as illustrated in Figure 18.
1
Measured Gas Symbol
2
Real Time Reading
3
Sensor Resolution and the Units of measure
4
Sensor Resolution
5
Low Alarm Setpoint Value
6
High Alarm Setpoint Value
7
Additional Information
8
The Minimum, Maximum, TWA, and STEL data updated in real time
9
Next Sensor Button
10
Back to Normal View
5.2.3. Alarm Normal and Focus View
The alarm normal and focus views operate similarly to the standard normal
and focus views. However, users can configure the device’s default response
in the event of an alarm. If the device is set to switch to Alarm Focus, Figure 19
will display when an alarm occurs where only the sensors in alarm are
displayed and all other sensors are not displayed. If the user selects Alarm
Normal View as the default setting, Figure 20 will be displayed during an alarm
event in which all sensors in alarm status are shown in red, while sensors not
in alarm remain green and are visible on the screen. An icon above the gas
symbol indicates whether the alarm is classified as "LOW," "HIGH,”” STEL,” or
“TWA” based on the established setpoints or thresholds.
5.2.4. Sensor Fault
When the sensor enters a Fault status, a sensor fault icon will display in the normal
view, while a “Sensor Fault” message appears in the focus view; both indicators will
appear in amber as shown in Figure 21. Please check the sensor or consult your
Honeywell authorized service center for sensor replacement.
Figure 17: Normal View
Figure 18: Focus View
Figure 19: Alarm
Focus View
Figure 20: Alarm
Normal View
Figure 21: Sensor Fault
19 | Page
5.2.5. Over Range and negative Drift Alarms
If the sensor detects gas concentrations exceeding its specified range, an over-range alarm is triggered. Likewise, should
the sensor drift negatively, a negative drift alarm will be activated. Figure 22 below illustrates the sensor over-range and
under range alarms.
CH 6. OPERATING THE INSTRUMENT
The instrument functions as a broadband VOC gas monitor and datalogger specifically engineered for operation in
hazardous environments. It provides real-time readings and triggers alarm notifications when exposure levels surpass
predefined thresholds. Prior to shipment, default alarm limits are established at the factory, and the sensor is calibrated
using standard calibration gas. Nonetheless, it is essential to test the instrument and confirm calibration accuracy before
initial deployment. Once fully charged and calibrated, the instrument is ready for operational use.
6.1. Turning the Instrument ON
Please refer to section 4.1 above ” Turning the instrument ON” for details. The primary display may indicate ppb, ppm, or
other relevant information depending on the instrument model. The Honeywell logo should initially appear; if it does not,
please contact your distributor or Honeywell Technical Support as this may signal an issue. Once activated, the
instrument conducts self-test. Should any tests—including sensor or memory checks—fail, consult the Troubleshooting
section of this guide. Upon completion of startup procedures, a numerical reading screen accompanied by icons will be
shown, signifying that the device is fully operational and ready for use.
6.2. Turning the Instrument OFF
Please refer to section 4.2 above “Turning the instrument OFF” for details. You must hold your finger on the key for the
entire shuto process. If you remove your finger from the key during the countdown, the shuto operation is canceled, and
the instrument continues normal operation.
6.3. Auto-Zero at Startup
The Honeywell Safety Suite software and DC App enable users to configure the instrument for
automatic zero calibration following self-testing at startup. It is important to note that this feature is
not enabled by default. When deactivated, the instrument completes its self-test and proceeds
directly to reading mode. The zeroing process can be aborted by pressing the “L” key at any time
during the process, and the instrument will go directly to normal reading mode.
6.4. Operating the built-in flashlight
The instrument incorporates an integrated flashlight to facilitate illumination of dark environments
during operation. To enable the flashlight, access the quick menu by pressing the power button
while the instrument is in standard operating mode. If the instrument is powered o, the flashlight
Figure 22: Sensor +OL and -OL Alarms
Figure 23: Flashlight
20 | Page
can be activated by pressing the “L” button. Additionally, when the instrument is operating in normal mode and enters a
dimly lit area, the ambient light sensor will detect the reduced light and automatically activate the flashlight. This
automatic functionality may be disabled via the settings menu.
Note: Prolonged use of the flashlight will decrease the battery’s operational duration prior to requiring recharge.
6.5. Leakage Check
Upon startup, the device initiates a leakage test by requesting the user to block the probe. The system then checks any
potential leakage. If the test is successful, the device will indicate that the leakage check has been passed. Conversely, if
the leakage check fails, the device will display a prompt as illustrated in the figure below.
6.6. Calibration Status
The instrument displays the icon shown Figure 25 below in amber color when calibration is required. Calibration is
required, and this icon is displayed under the following conditions:
• The sensor has been replaced.
• The user-defined calibration interval has been exceeded.
• The calibration gas type has been changed without recalibrating the
instrument.
• The instrument fails a bump test
6.7. Bump Status
Sensor(s) should be tested periodically using a bump test. The instrument displays the icon in Figure 26 when a bump test
is required under the following conditions:
Figure 24: Leakage Check
Figure 25: Calibration Due and Fault Icons
Figure 26: Bump Due and Fault Icons
21 | Page
• The defined interval between bump tests has been exceeded (bump test overdue).
• The sensor failed a previous bump test.
6.8. Glance Mode
Glance Mode allows you to get vital information without turning on the instrument. You can check information such as the
instrument’s model and serial number, installed sensor types, calibration, and bump data, etc. Glance Mode menu
components can be activated or deactivated using the device’s menu as shown in Figure 27
When the device is OFF press and hold the power and “R” buttons for 3 seconds to enter the glance mode as shown in
Figure 28
When activated, users can exit glance mode by pressing the power button once more. By default, glance mode displays all
relevant information below; however, users have the option to customize the displayed data via the Device Menu, Safety
Suite software, or the DC App. The exit duration is set to 60 seconds, but this interval may be adjusted in the device
settings.
• Event Log
• General Information
• Sensors Information
• Calibration and Bump information
• Alarms
• Data Log information
• Wireless Information if installed
• Battery and Charge information
• Certification information
• Literature QR-Code
6.9. Policy Enforcement
The instrument can be configured to enforce a facility or company's requirements for calibration and
bump testing at designated intervals, prompting users when such procedures are necessary.
Depending on the configuration of Policy Enforcement features, users may be required to conduct a
bump test or calibration before operating the instrument. The system can restrict normal operation
until calibration or bump testing is successfully completed. When compliance with policy settings is
Figure 27: Glance Mode Settings
R
Figure 28: Entering Glance Mode
Figure 29: Policy
Tick
22 | Page
achieved through proper bump testing and calibration, a check-mark icon (Figure 29) will appear in the status bar. If Policy
Enforcement is enabled, the instrument displays a notification after startup indicating that a bump test or calibration is
required; if both are necessary, they will be presented sequentially. Please note that Policy Enforcement features are
disabled by default.
6.9.1. Setting Policy Enforcement
Users may adjust the policy enforcement setting by utilizing either the Device Configurator App or Honeywell Safety Suite.
For detailed guidance on modifying these settings, please consult the respective software and application manuals.
Alternatively, to change policy enforcement directly through the device's native menu, navigate to Device Settings, select
General Settings, and then choose Policy Enforcement.
The following policy options can be enabled or disabled from this screen:
• Must Calibrate
• Must Bump
• Can Bypass calibration
• Can Bypass bump
These settings control whether bump testing and calibration are required and whether the user is allowed to bypass them.
Must Calibrate
The user is prompted to calibrate the instrument when calibration is due, as defined by the calibration interval. Two
programmable options are available:
• Cannot Bypass
Calibration must be performed and successfully completed before the instrument can be used. If calibration is not
performed, the only available option is to turn o the instrument.
• Can Bypass
If calibration is due but the user chooses not to perform it, the instrument may still be used. In this case, the instrument
records the bypass event in a Policy Violation report.
Must Bump
The user is prompted to perform a bump test when a bump test is due, as defined by the bump test interval. Two
programmable options are available:
• Cannot Bypass
A bump test must be performed and successfully completed before the instrument can be used. If the bump test is not
performed, the only available option is to turn o the instrument.
Figure 30: Policy Enforcement
23 | Page
• Can Bypass
If a bump test is due but the user chooses not to perform it, the instrument may still be used. In this case, the instrument
records the bypass event in a Policy Violation report.
CH 7. OPERATION MODES
ModRAE™ oers several operational modes tailored to the specific task and customer requirements. Below is an overview
of these modes:
Health Mode: Designed for occupational exposure measurement, this mode emphasizes the accuracy of gas
concentration measurements near Occupational Exposure Limit Values (OELV). For health monitoring purposes, data
logging should be associated with worker names, dates, and measurement data types. The worker’s name serves primarily
as the index for merging data.
Safety Mode: Is intended for general gas detection applications, such as safety warnings and leak detection. Here,
performance requirements focus on alarm signaling, and the measuring range is determined by the manufacturer. For
safety monitoring, data logging should be linked to the measurement object (such as equipment or specified location),
operator, date, and measurement data type. The measurement object acts as the primary index for data merging. In safety
mode users can perform Object measurement or survey measurement which will be explained in detail l ater.
7.1. Safety Mode
Safety Mode is intended for general gas detection purposes, including safety alerts and leak identification. Its principal
objectives are the prompt localization of leakage sources and the eicient acquisition of gas concentration data. The
measurement range is specified by the manufacturer. Safety Mode oers
Real Time Measurement, Survey Measurement, and Object Measurement
to address requirements in field applications. Benzene and O
2
inert
measurements are excluded from the scope of object measurement.
Alarm thresholds may dier from those established in Health Mode.
7.1.1. Switching between Health and Safety
Modes
There are two methods for switching between Health and Safety modes.
Users may select either Health or Safety mode based on their login
credentials; if no relevant property is assigned, the system will default to
ModRAE
Health Mode
Safety Mode
Survey
Measrement
Object
Measrment
Figure 31: ModRAE Operation Modes
Figure 32: Quick Menu Switch
24 | Page
Health mode. Alternatively, users can switch between Safety and Health modes within
measurement mode by accessing the quick menu as shown in Figure 32. In safety mode users can
perform
47. Real Time Measruement
48. Survey Measurement
49. Object Measurement
7.1.2. User Interface
To help dierentiation between the safety mode and health mode in ModRAE™, switching to safety
mode presents users with a modified user interface. While the core logic and menus remain
unchanged, the readings interface is adjusted to provide a subtle yet noticeable indication that the
system is operating in safety mode. Figure 33 shows an example of the user interface in safety mode.
7.1.3. Survey Measurement in Safety Mode
Survey measurement enables swift identification of irregular gas concentrations. Users may conduct a comprehensive
survey that incorporates all installed sensors or opt for a targeted survey by selecting individual sensors.
Focus Survey Measurement
Follow the steps below and refer to Figure 34:
1. From the main menu, select Focus Survey.
2. Select the sensor to be used for the focus survey monitoring.
3. The device will automatically perform the focus survey three times and will provide summary information for all
three measurement rounds upon completion.
4. During the focus survey monitoring, observe the graphical representation of the concentration and the
measurement duration. The measurement duration is fixed at 20 seconds. You can abort at any time.
5. After all measurement rounds are completed, the device will display the results along with a graphical
representation of the collected data.
Total Survey Measurement
Follow the steps below and refer to figure 33
1. From the main menu, select Total Sur vey.
2. Read the instructions and confirm to start the process.
3. The device will automatically perform the total survey three times and will provide summary information for all
three measurement rounds upon completion.
4. After each round the device will provide the results and will request the user to proceed or abort.
5. After all measurement rounds are completed, the device will display the results.
Figure 33: Safety
Mode UI
Figure 34: Focus Survey
25 | Page
7.1.4. Object Measurement
Object measurement encompasses both routine spot detection and temporary point detection. In routine spot detection,
the measurement objects are identified, and procedures are specified. For temporary point detection, the objects may be
uncertain, but procedures remain defined. Within the instrument, the "Object List" contains routine spot detection items,
while the "Temporary Object List" pertains to temporary point detections; corresponding procedures are predefined in
Honeywell Safety Suite and DC App.
The object measurement procedure is determined by selecting the object name from either the "Object List" or the
"Temporary Object List." Upon completion of each measurement, a summary result is presented to the user for
confirmation, allowing them to save or discard the data. Total measurement results are displayed on screen when
possible.
In Honeywell Safety Suite and DC App, procedures for both routine spot detection and temporary point detection are
referred to as "Class." Both the Object List and Temporary Object List must be established in Honeywell Safety Suite or DC
app, then moved to the instrument for field applications. Honeywell Safety Suite and DC app can retrieve the Object List
and temporary object list from the instrument for editing and then send back the changes back to the instrument.
7.1.5. Compound Specific Measurement
In addition to general VOC measurement, the ModRAE™ supports compound-specific measurements. This function
requires the use of an appropriate Separation Tube (Butadiene, Benzene, or Halocarbons) and operation in Object
Measurement Mode with a 9.8 eV lamp installed. To perform a Benzene-specific measurement, follow the steps shown in
Figure 36:
1. From the main menu, select Object Measurement, then choose the appropriate object from the list.
2. Verify that all configuration parameters are correct, including hose length and other class- specific information,
then confirm to proceed.
Figure 35: Total Survey
Figure 36: Compound Specific Measurement
26 | Page
3. The device will display a step-by-step wizard guiding the user through the correct
installation of the separation tube and any additional steps required to ensure successful
measurement.
4. Based on the hose length and other configured parameters, the device will initiate the
soaking process and display a countdown timer.
5. Upon completion of the countdown, the device will automatically begin the sampling
process.
6. After the measurement process is completed, the user may choose to repeat the
measurement or abort the operation.
Note: If the device identifies that the user has installed a sensor incompatible with Benzene
detection, the system will issue a notification as illustrated in Figure 37.
WARNING!
Do not begin sampling yet! Before you start sampling, you must insert a separation tube into the inlet/holder. Follow
the Separation tube preparation and placing a tube into the ModRAE™ instructions before pressing any buttons on
the ModRAE™. Once the tube is in place, then proceed to measuring.
IMPORTANT!
Once a tube’s ends are broken o, the material inside is exposed. Therefore, use the tube for sampling as soon as
possible. It is recommended to use it within 15 minutes.
7.1.6. Separation tube preparation
CAUTION!
Wear hand and eye protection when breaking tube tips. Use caution in handling tubes with broken ends. Keep away
from children. Separation tubes should be disposed of according to local regulations. See footnotes of data sheets
for disposal information. Only use Honeywell RAE Systems tubes. Handle tubes with care. Tube ends are sharp after
ends are broken o.
1. Open a package of RAE-Sep separation tubes and remove one.
2. Place the tip in the package’s tube tip breaker (the small hole on the front)
and snap o the tip.
3. Turn the tube around and snap o the other end.
7.1.7. Inserting the separation tube
1. Unscrew the front of the sampling probe from the base.
2. Slip the tube into the rubber holder in the front portion. Make sure the arrow
on the side of the tube points toward the instrument.
3. Insert the other end of the tube into the middle of the base while turning the
front portion to tighten it onto the base’s threads
Note: When the ModRAE™ is used for VOC monitoring, no tube is inserted.
Figure 37: System
Notification
Figure 38: Separation Tube
Preparation
27 | Page
IMPORTANT
Do not overtighten any portion of the sampling assembly.
To ensure that there are no leaks, periodically test the seals:
With the ModRAE™ running, place your finger over the end of the inlet probe. The alarm should sound and the pump-
stall icon should flash on the display. This indicates that all seals are good. Stop the alarm by pressing “L” key. If the
pump does not alarm, then check that all inlet parts are tight and inspect the O-ring for damage (replace it if
necessary).
7.2. Integrated Sampling Pump
The instrument features an integrated diaphragm-type sampling pump capable of delivering a flow rate between 450 and
550 cc per minute. By connecting Teflon or metal tubing with a 1/8" inside diameter to the gas inlet port, the pump can
draw air samples from distances up to 140 feet (~45 meters), either horizontally or vertically. In Search Mode, the pump is
activated upon initiation of a sample measurement and deactivated when the sampling is manually halted. Should liquid
or foreign objects enter the inlet port filter, the instrument will detect the obstruction, immediately shut down the pump,
trigger an alarm, and display a flashing pump icon. The device will perform pump check upon startup, there is no need to
block the pump inlet, the device will alert the user if the pump inlet is blocked.
7.3. Datalogging
Datalogging is enabled by default but can be deactivated or adjusted through the device settings. Users may navigate to
the settings menu, select datalogging, and modify the relevant parameters as needed. Figure 33 below demonstrates the
available options, which include clearing the log, setting the action for when memory is full (such as wrapping around or
stopping datalogging), uploading data to the software, and adjusting the data log interval. Please note that the selected
interval will determine the number of recorded points and, consequently, aect memory usage. Choosing a longer interval
results in fewer data logs, thereby allowing the memory to store information over a longer period.
When datalogging is active, the instrument displays a disk icon to signify that this feature is enabled. For further details
regarding the icon, please refer to section 5.1.2 above. The instrument records gas concentration measurements at the
conclusion of each sample period while datalogging is enabled. Additionally, it logs relevant information including user ID,
Figure 39: Inserting the separation tube
28 | Page
site ID, serial number, last calibration date, and alarm limits. All data are preserved in non-volatile memory—even after the
device is powered o—so they can be retrieved later.
Figure 40: Datalogging Settings
29 | Page
CH 8. STANDARD KIT AND ACCESSORIES
8.1. Standard Kit
The ModRAE™ standard kit is supplied with the following accessories (Table 13) in a recyclable carton box. To access the
manual, quick start guide, and other relevant materials, please activate Glance Mode as shown in section 6.8 and scan
the provided QR code.
Table 13: Standard Accessories
Wrist Strap
1
External Filter (45mm)
3
NFC Tag Keyring (Advanced)
3
Type-C to Type-C cable with magnetic adapter
1
Type-C power adapter (US, UK, Europe, ANZ, China)
1
Porous metal filters
3
PID Lamp Cleaning Kit
1
Organic Vapor Zeroing Kit
1
T-tube with Tygon Tube
1
Adapter without probe
1
Screwdriver 1
8.1.1. AC adapter (battery charger)
A battery charging circuit is built into the instrument battery. Connect the supplied power adaptor to the wall socket and
charge the device. Please refer to chapter Ch 3 above for details.
WARNING
To reduce the risk of ignition of hazardous atmospheres, recharge battery only in areas known to be non-hazardous.
Remove and replace battery only in areas known to be non-hazardous.
An instrument that has been fully discharged can achieve complete recharging within an 8-hour period. Batteries
experience gradual depletion even when the instrument is powered o. Consequently, if the instrument has been stored or
left uncharged for several days or longer, it is advisable to verify the battery level prior to operation. The factory-supplied
battery is rated for up to 16 hours of standard use (without alarm activation) under optimal conditions with a new battery.
However, battery performance will diminish over time or when exposed to challenging environments, such as low
temperatures.
8.1.2. External Filter
The external filter consists of a PTFE (Teflon®) membrane with a 0.45 micron pore size, eectively preventing dust and
other particles from entering the sensor manifold and potentially causing significant instrument damage. This filter
enhances the sensor's operational longevity. For installation, attach the external filter directly to the instrument’s inlet
tube.
WARNING
Always use an external filter on the instrument. This prevents contaminants and debris from clogging the sample
pathway and protects the sensor from damage
30 | Page
CH 9. CALIBRATION
The following process explains the calibration process
9.1.1. Zero Calibration
Follow the steps below to perform a zero calibration (Figure 41: Zero Calibration):
1. Navigate to the main menu and select Calibration.
2. Choose Zero Calibration and confirm your selection.
3. Select the sensor(s) for which zero calibration is to be performed. At least one sensor must be selected; all
sensors may be selected if required.
4. When prompted by the device, apply the appropriate calibration gas.
5. Once the gas is applied, the zero calibration process will begin automatically.
6. Upon completion, the device will display the zero calibration results.
9.1.2. Span Calibration procedure
Follow the steps below to perform a span calibration:
1. Navigate to the main menu and select Calibration.
2. Choose Span Calibration and confirm your selection.
3. Review and consider the cross-sensitivity of the sensors prior to calibration.
4. Select the sensor(s) for which span calibration is to be performed. Sensors that are due for calibration are
indicated by a Calibration Due icon. At least one sensor must be selected.
5. When prompted by the device, apply the appropriate calibration gas and confirm.
6. Once the calibration gas is applied, the span calibration process will begin automatically.
7. Upon completion, the device will display the span calibration results.
8. After the calibration gas is disconnected, the device will automatically begin the purging process.
Following this step, users may choose to continue calibrating additional sensors, recalibrate any sensors that failed, or
abort the calibration process.
Figure 41: Zero Calibration
Figure 42: Span Calibration
31 | Page
9.1.3. Calibration Settings
The above procedure establishes the second point of the sensor calibration curve. The most
straightforward method involves using a cylinder of standard reference gas (span gas) equipped with
a 500 cc/min flow-limiting or flow-matching regulator. Select the 500 cc/min regulator only if its flow
rate matches or slightly exceeds that of the instrument pump. Alternatively, the span gas may be
introduced into a Tedlar bag or supplied via a demand-flow regulator. Attach the calibration adapter
to the instrument's inlet port, then connect the tubing to either the regulator or the Tedlar bag.
Another option involves employing a regulator with a flow rate greater than 500 cc/min, permitting
any excess flow to escape through a T or an open tube. With this approach, the span gas exits
through an open tube marginally larger than the probe, allowing the probe to be inserted into the
calibration tube. Access the Span Calibration menu to perform the Span calibration; you may also
return to the Zero calibration menu or the initial Calibration menu to exit the calibration process.
Figure 43 shows the calibration settings, user can select the calibration interval, change the calibration gas, change the
span value for each installed sensor and modify the tube calibration settings:
Change the Calibration Interval
To adjust the calibration interval for each installed sensor, select the desired interval from the calibration settings. Then, as
shown in the Figure 44 below, choose the calibration interval option, select each sensor individually, and enter the
appropriate calibration interval. The maximum allowable interval is 365 days, while the minimum is zero days.
Change the calibration gas
To change the calibration gas, navigate to the calibration settings and select "Change Calibration Gas" from the menu.
Then, choose the appropriate calibration gas for the installed sensors as illustrated in the Figure 45 below.
Change Span Value
To adjust the span value for each installed sensor, access the calibration menu settings and select "Change Span Value."
As shown in Figure 47 below, then, choose each sensor and modify its span value as required.
Figure 43: Calibration
Settings
Figure 44: Calibration Interval
Figure 45: Change Calibration Gas
32 | Page
Tube Calibration
When operating in Safety Mode, users may choose to calibrate the device using the Tube calibration
method as shown in Figure 46. The configuration options for tube calibration are displayed
exclusively in safety mode. Additionally, three tubes are accessible solely within safety mode or for
object measurement purposes.
9.1.4. Three Point Calibration
To improve measurement accuracy, a secondary Span calibration may be conducted in addition to
the standard Zero and Span calibrations described previously. Prior to performing this third
calibration, the instrument must be configured to permit this option. This requires utilizing the Safety
Suite software or the DC App and employing a higher concentration of calibration gas. Please refer
to the instructions provided below.
Initiate the Zero and Span calibrations as usual. After completing the initial Span calibration (Span
1), the system will display the option for a second Span calibration (Span 2), which follows the same procedure as the first.
As with Span 1, users may exit or return to the Zero calibration screen if they opt not to proceed or wish to abort the
process.
The minimum concentration for Span 2 gas should be 1000 ppm. When accuracy at low concentrations is the primary
objective, utilizing a two-point calibration method with Span 1 set at 100 ppm is suicient; this approach minimizes
reading error at 10 ppm. If Span 1 is calibrated to 10 ppm, the measurement error below 100 ppm—as well as between 100
ppm and 1000 ppm—will increase. The most straightforward procedure involves using a cylinder of standard reference gas
(span gas) equipped with either a 500 cc/min flow-limiting regulator or a flow-matching regulator. Span 2 gas should be of
a higher concentration than span 1 gas.
Select the 500 cc/min regulator only if its flow rate aligns with or slightly surpasses that of the instrument pump.
Alternatively, the span gas may be transferred to a Tedlar bag or delivered via a demand-flow regulator. Attach the
calibration adapter to the inlet port of the instrument, then connect the tubing to either the regulator or Tedlar bag. Another
option involves utilizing a regulator with a flow rate greater than 500 cc/min and permitting any excess flow to exit through
a “T” connector or an open tube(T connector is included in the standard kit). With this technique, the span gas passes
through an open tube marginally wider than the probe itself, allowing for the insertion of the probe into the calibration
tube.
9.2. Bump Test Procedure
Honeywell strongly recommends conducting a bump test prior to each day’s operation. The bump test is designed to
ensure that the instrument’s sensors are responsive to the target gas, and to confirm that all alarms activate and function
correctly during exposure. This routine check helps guarantee both sensor performance and user safety.
For ModRAE™, calibration is required in specific circumstances: if a bump test fails, after installing a new sensor, following
sensor maintenance, or at least every 180 days. The exact frequency depends on how often the device is used and the
Figure 47: Change Span Value
Figure 46: Tube
Calibration
33 | Page
sensor’s exposure to possible poisons or contaminants. It is important to note that the intervals and procedures for
calibration and bump testing may vary according to national legislation and company policy.
To perform a bump test in ModRAE™, follow the steps outlined below, as demonstrated in Error! Reference source not
found..
1. Navigate to the menu and select the bump test option.
2. Choose the sensors you wish to include in the bump test. At least one sensor must be selected to proceed.
3. The device will prompt the user to apply calibration gas to the unit.
4. Once the device detects the gas, the bump test will automatically begin. The bump test process is then initiated.
5. After the bump test is complete, the device will display the test results.
6. pon disconnecting the gas, the device will automatically perform a purging process.
7. If the bump test is initiated manually in step 3 above by pressing the tick mark at the bottom, the device will
anticipate the flow of gas to conduct the test. Should the gas not be detected within 10 seconds, a warning will
appear as indicated in the Error! Reference source not found. screen 7 below, and the user will be prompted to
choose whether to continue with the bump test or abort the process.
8. If the user opts to cancel the bump test in step 4, a confirmation message will be displayed, as shown in screen 8
below, prompting the user to confirm whether they wish to abort the bump test or proceed.
IMPORTANT
If the instrument does not pass a bump test, perform a full calibration. If calibration also fails, the PID sensor or
lamp may require cleaning or replacement. If the instrument repeatedly fails to calibrate, turn it o and refer it for
servicing.
WARNING!
A bump test can only be performed manually in ModRAE™. When a bump test is done manually, the instrument
makes a pass/fail decision based on sensor performance, but the user still has the responsibility to make sure all
the alarms are enabled and functional.
Figure 48: Bump Test
34 | Page
CH 10. DEVICE SETTINGS
The settings menu of ModRAE™ provides users with a flexible and comprehensive way to tailor the device to their specific
operational requirements. Whether you are adjusting alarm parameters, configuring sensor thresholds, or setting up data
logging preferences, the system is designed to be user-friendly and highly customizable. In the following sections, we will
guide you through the details of each setting and show you how to personalize ModRAE™ to best fit your unique needs and
applications.
10.1. General Settings
Within the General Settings section of ModRAE™, users have the ability to configure key aspects of device operation. Here,
you can set the date and time, select your preferred language, adjust the flash, etc. These options ensure that the device is
not only tailored to your usage environment but also supports compliance and operational continuity.
10.1.1. Date & Time Settings
The date and time settings enable users to modify the date format, select between 12-hour and 24-hour time displays, and
adjust the time and date, as illustrated in Figure 49 below.
Figure 49: Date & Time Settings
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10.1.2. Language Settings
The language settings enable users to choose their preferred user interface and device language. Eleven languages are
supported: English, French, German, Spanish, Portuguese, Japanese, Russian, Chinese, Dutch, Korean, and Italian.
10.1.3. Exit Duration
The exit duration refers to the time interval during which the device remains on a single screen without user interaction
before reverting to the standard reading display. If an invalid value is entered, the device will notify the user and
subsequently return to the entry screen as shown in figure , allowing for the input of a new value. The permissible interval
ranges from 10 to 120 seconds.
10.1.4. Display Behaviour settings
To adjust the display behavior settings, navigate to the device’s settings menu and select "Display Settings." Here, you can
customize the following options:
- LCD Flip: Choose whether the screen automatically rotates 180 degrees when the device is held
upside down, or set it to flip manually as needed.
- LCD Backlight: Select between manual and automatic backlight control. In manual mode, you can
adjust the backlight level by pressing the plus (+) and minus (–) keys located at the bottom of the
screen. If you opt for automatic backlight, the device utilizes an ambient light sensor to detect
surrounding light levels and automatically adjusts the LCD backlight for optimal visual comfort and
clarity. Figure 53 below illustrates these display behavior settings options.
10.1.5. Flashlight
The flashlight on the front of the device mounted on the sensors cartridge can be activated for dark
areas from the settings menu, navigate to the settings menu, select the flashlight option and turn on
or o as shown in Figure 52.
Figure 50: Language Settings
Figure 51: Exit Duration Settings
Figure 52: Flashlight
Settings
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10.1.6. Policy Enforcement
The policy enforcement is explained in detail in section 6.9 above
10.1.7. Battery Settings
The battery settings provide the option to display either the battery capacity as a percentage or the
remaining runtime in hours and minutes, as illustrated in the figure.
Figure 53: Display Behavior Settings
Figure 54: Battery
Settings
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10.2. Battery Specifications
Placeholder for battery specifications
10.3. Device Specifications
Placeholder for Device specifications
10.4. Sensor Specifications
Placeholder for sensors specifications
10.5. Appendix
10.5.1. Table of Figures
FIGURE 1: MODRAE BATTERY ............................................................................................................................................. 9
FIGURE 2: CHARGING MODE SELECTION ............................................................................................................................... 9
FIGURE 3: CHARGING IN PROGRESS ................................................................................................................................... 10
FIGURE 4: FULLY CHARGED .............................................................................................................................................. 10
FIGURE 5: CHARGING ERROR ............................................................................................................................................ 10
FIGURE 6: MEASURING CHARGING MODE ............................................................................................................................ 10
FIGURE 7: OUT OF THE BOX SCREENS ................................................................................................................................. 12
FIGURE 8: ALARM CHECK MESSAGE ................................................................................................................................... 12
FIGURE 9: INTELLIFLASH .................................................................................................................................................. 13
FIGURE 10: GUEST USER LOGIN ........................................................................................................................................ 13
FIGURE 11: NFC TAG ..................................................................................................................................................... 14
FIGURE 12: SCAN NFC TO LOG IN ..................................................................................................................................... 14
FIGURE 13: USER LOGIN WITH PASSCODE ............................................................................................................................ 14
FIGURE 14: MODRAE FRONT PANEL .................................................................................................................................. 15
FIGURE 15: CONTEXTUAL BUTTON ICONS ............................................................................................................................ 15
FIGURE 16: STATUS BAR .................................................................................................................................................. 15
FIGURE 17: NORMAL VIEW ............................................................................................................................................... 18
FIGURE 18: FOCUS VIEW ................................................................................................................................................. 18
FIGURE 19: ALARM FOCUS VIEW ....................................................................................................................................... 18
FIGURE 20: ALARM NORMAL VIEW ..................................................................................................................................... 18
FIGURE 21: SENSOR FAULT .............................................................................................................................................. 18
FIGURE 22: SENSOR +OL AND -OL ALARMS ......................................................................................................................... 19
FIGURE 23: FLASHLIGHT .................................................................................................................................................. 19
FIGURE 24: LEAKAGE CHECK ............................................................................................................................................ 20
FIGURE 25: CALIBRATION DUE AND FAULT ICONS ................................................................................................................... 20
FIGURE 26: BUMP DUE AND FAULT ICONS ............................................................................................................................ 20
FIGURE 27: GLANCE MODE SETTINGS ................................................................................................................................. 21
FIGURE 28: ENTERING GLANCE MODE ................................................................................................................................ 21
FIGURE 29: POLICY TICK .................................................................................................................................................. 21
FIGURE 30: POLICY ENFORCEMENT .................................................................................................................................... 22
FIGURE 31: MODRAE OPERATION MODES ........................................................................................................................... 23
FIGURE 32: QUICK MENU SWITCH ..................................................................................................................................... 23
FIGURE 33: SAFETY MODE UI............................................................................................................................................ 24
FIGURE 34: FOCUS SURVEY .............................................................................................................................................. 24
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FIGURE 35: TOTAL SURVEY ............................................................................................................................................... 25
FIGURE 36: COMPOUND SPECIFIC MEASUREMENT ................................................................................................................. 25
FIGURE 37: SYSTEM NOTIFICATION ..................................................................................................................................... 26
FIGURE 38: SEPARATION TUBE PREPARATION ........................................................................................................................ 26
FIGURE 39: INSERTING THE SEPARATION TUBE........................................................................................................................ 27
FIGURE 40: DATALOGGING SETTINGS .................................................................................................................................. 28
FIGURE 41: ZERO CALIBRATION ......................................................................................................................................... 30
FIGURE 42: SPAN CALIBRATION ......................................................................................................................................... 30
FIGURE 43: CALIBRATION SETTINGS .................................................................................................................................... 31
FIGURE 44: CALIBRATION INTERVAL .................................................................................................................................... 31
FIGURE 45: CHANGE CALIBRATION GAS .............................................................................................................................. 31
FIGURE 46: TUBE CALIBRATION ......................................................................................................................................... 32
FIGURE 47: CHANGE SPAN VALUE...................................................................................................................................... 32
FIGURE 48: BUMP TEST ................................................................................................................................................... 33
FIGURE 49: DATE & TIME SETTINGS .................................................................................................................................... 34
FIGURE 50: LANGUAGE SETTINGS ...................................................................................................................................... 35
FIGURE 51: EXIT DURATION SETTINGS ................................................................................................................................. 35
FIGURE 52: FLASHLIGHT SETTINGS ..................................................................................................................................... 35
FIGURE 53: DISPLAY BEHAVIOR SETTINGS ............................................................................................................................ 36
FIGURE 54: BATTERY SETTINGS .......................................................................................................................................... 36
