V
Hz%
600A
OFF
NCV
60A
CAT III
600V
COM
V/Ω
Hz%
Ω
SELECT
H
z
%
REL
EN
Original Instructions
Version 1: July 2024
30641
DIGITAL
CLAMP
METER
1.1 Product Reference
User Manual for: Digital Clamp Meter
Stock No: 30641
Part No: DCM-RAC
1.2 Revisions
Version 1: July 2024
First release
As our manuals are continually updated, always ensure
that the latest version is used.
Please visit drapertools.com/manuals for the latest
version of this manual.
1.3 Understanding the Safety Content of
This Manual
WARNING! – Situations or actions that may result
in personal injury or death.
CAUTION! – Situations or actions that may result
in damage to the product or surroundings.
Important: – Information or instructions of particular
importance.
1.4 Copyright © Notice
Copyright © Draper Tools Limited.
Permission is granted to reproduce this manual for
personal and educational use ONLY. Commercial
copying, redistribution, hiring or lending is strictly
prohibited.
No part of this manual may be stored in a retrieval system
or transmitted in any other form or means without written
permission from Draper Tools Limited.
In all cases, this copyright notice must remain intact.
1. Preface
– 2 –
These are the original product instructions. This
document is part of the product; retain it for the life
of the product, passing it on to subsequent holders.
Read this manual in full before attempting to
assemble, operate or maintain this product.
This Draper Tools manual describes the purpose
of the product and contains all the necessary
information to ensure its correct and safe use.
Following all the instructions and guidance in
this manual will ensure the safety of both the
product and the operator and increase the
lifespan of the product.
All photographs and drawings within this manual are
supplied by Draper Tools to help illustrate correct
operation of the product.
Every eort has been made to ensure the
information contained in this manual is accurate.
However, Draper Tools reserves the right to amend
this document without prior warning. Always use the
latest version of the product manual.
2. Contents
– 3 –
EN
1. Preface 2
1.1 Product Reference 2
1.2 Revisions 2
1.3 Understanding the Safety Content
of This Manual 2
1.4 Copyright © Notice 2
2. Contents 3
3. Product Introduction 4
3.1 Intended Use 4
3.2 Specication 4
4. Health and Safety Information 6
5. Identication and Unpacking 7
5.1 Product Overview 7
5.2 Packaging 8
6. Installing/Replacing the Battery 8
7. Operating Instructions 9
7.1 LCD Display Explained 9
7.2 Auto Sleep Mode (f) 9
7.3 The Function Buttons (6) 10
7.4 Using the Test Leads and Probe Sets 11
7.5 Measurements 12
8. Maintenance 14
8.1 General Maintenance and Storage 14
9. Disposal 14
10. Warranty 14
11. Explanation of Symbols 15
3. Product Introduction
– 4 –
3.1 Intended Use
This meter is designed to measure voltage, current and
resistance across AC and DC circuits. It can also measure
capacitance, frequency, diode, continuity, temperature
and carry out non-contact voltage sensing.
Any other application beyond the conditions established
for use will be considered misuse. Draper Tools accepts
no responsibility for improper use of this product.
Read this manual in full before attempting to assemble,
operate or maintain the product, and retain it for later use.
3.2 Specication
Stock No. 30641
Part No. DCM-RAC
Meter rating: CAT III 600V/600A
Battery type required: 4 x AAA (not supplied)
Operating conditions:
Ambient temperature: 0–50°C
Storage temperature: -10 - 60°C
Humidity: <80% RH
– 5 –
EN
Measurement Range Accuracy Resolution
DC Voltage
600.0mV
±1% reading, ±2digits
0.1mV
6.000V 0.001V
60.00V 0.01V
600.0V 0.1V
AC Voltage /True RMS
6.000V
±1% reading, ±2digits
0.001V
60.00V 0.01V
600.0V 0.1V
AC/DC Current 0.3 - 60A ±2.5% reading, ±8digits 0.01A
AC/DC Current 0.5 - 600A ±2.5% reading, ±5digits 0.1A
Capacitance (F)
6.000nF
±3% reading, ±10digits
0.001nF
60.00nF 0.01nF
600.0nF 0.1nF
6.000uF 0.001uF
60.00uF 0.01uF
600.0uF 0.1uF
6.000mF 0.001mF
60.00mF 0.01mF
Resistance (Ω)
600.0Ω
±1% reading, ±3digits
0.1Ω
6.000kΩ 0.001kΩ
60.00kΩ
±1% reading, ±1digit
0.01kΩ
600.0kΩ 0.1kΩ
6.000MΩ 0.001MΩ
60.00MΩ ±2% reading, ±3digits 0.01MΩ
Frequency (HZ)
9.999Hz
±1% reading, ±2digits
0.001Hz
99.99Hz 0.01Hz
999.9Hz 0.1Hz
9.999KHz 0.001KHz
Diode and Continuity
Diode forward voltage 0 – 3.3V
Continuity buzzing when resistance is <50Ω
Duty Cycle 0 – 100% ±1% reading, ±5digits 0.1%
Temperature
-55°C - 400°C
±2% reading, ±3digits
1°C
-67°F - 750°F 1°F
400°C - 1300°C 1°C
752°F - 2372°F 1°F
– 6 –
4. Health and Safety Information
Important: Read all the Health and Safety instructions
before attempting to use this product. Failure to follow
these instructions may result in serious injury or death.
WARNING! Contact with live circuits can result
in severe electrical shock. Take care not to
touch the exposed contacts as they may give a
serious electric shock.
− DO NOT measure voltages above 600V DC or
AC (RMS).
− DO NOT apply voltages to the probes whilst
measuring current, diodes, continuity or
capacitors.
− Discharge all high-voltage capacitors before
measuring capacitance.
− Do not clamp both the live and neutral wires at the
same time during the measurement.
− Remove the test leads from the meter when
measuring using the clamp.
• ONLY trained and competent personnel may operate
this device.
• Use this product ONLY as instructed in this manual.
• Use ONLY accessories and spare parts supplied by
Draper Tools.
− DO NOT use any other leads with this product
than those supplied. Contact Draper Tools for
replacement options if the leads become
damaged.
− If the battery must be replaced, use one with the
same specication.
• Observe all standard precautions and good practice
when working with live electrical currents.
• Inspect the product for damage before every use,
particularly the contact tips.
− DO NOT use this product if the device or probe
leads are damaged in any way or if there is
evidence of battery leakage.
− If battery acid comes into contact with your skin,
wash it o immediately with plenty of clean water.
− If battery acid comes into contact with your eyes,
ush them with plenty of clean water and seek
immediate medical attention.
• Ensure that the device is clean, dry and free from
grease before use.
• DO NOT use this product if it exhibits abnormal
behaviour and have it checked by a qualied and
authorised technician before next use.
• DO NOT exceed the maximum rated capacity per
function for this device as it may expose you to a
shock hazard.
• DO NOT measure resistors, capacitors and diodes
whilst they are charged. Discharge fully before
carrying out a measurement.
• Ensure that the probe contacts are disconnected from
the load or test circuit before moving the selector dial.
• Assess any specic additional risks to the operator
before each use.
• DO NOT expose this product to excessive ambient
temperature, high humidity, ammable substances or
environments that produce a strong magnetic eld.
• DO NOT use this this product around explosive gases,
vapours or dust.
• DO NOT immerse this device in water or expose it to
wet conditions.
• ALWAYS wear protective insulated gloves while using
this product.
• ALWAYS keep your ngers behind the guards on the
test probes and clamp during use.
• Ensure the selector dial is in the correct function
mode before taking any measurements.
• ALWAYS turn the selector dial to the ‘OFF’ position
and remove the probe leads from the device before
opening the battery compartment cover.
• DO NOT operate this device with the rear housing
open or missing and DO NOT use it if the rear housing
cannot be closed properly.
• NEVER insert the probe contacts into the device
terminals.
• DO NOT abuse, mutilate or burn the battery.
• Remove the batteries when the product is stored for
extended periods.
• DO NOT attempt to repair this device; it contains no
user-serviceable parts.
• Keep this product out of reach of children.
WARNING! ALWAYS ensure that the operator is
not in contact with the ground while taking
measurements, using insulating materials to
prevent the current from earthing.
– 7 –
EN
5. Identication and Unpacking
(1) Protection guard
(2) Clamp trigger
(3) LCD display
(4) (COM) Common earth probe (-) terminal
(5) Voltage/Resistance/Capacitance/Frequency/
Temperature/Continuity/Diode (+) terminal
(6) Function buttons (Select, Max/Min, Hold, Range,
HZ%, REL)
(7) Measurement selector dial
(8) Light
(9) NCV sensor
(10) Clamp
(11) Battery compartment cover
5.1 Product Overview
Carefully remove the product from the packaging and examine it for any signs of damage that may have occurred
during shipment.
If any part is damaged or missing, do not attempt to use the product. Please contact the Draper Helpline;
contact details can be found at the back of this manual.
V
Hz%
600A
OFF
NCV
60A
CAT III
600V
COM
V/Ω
Hz%
Ω
SELECT
H
z
%
REL
30641
(1)
(3)
(4)
(2)
(5)
(6)
(7)
(9)
(10)
(11)
(8)
– 8 –
5. Identication and Unpacking
Important: Use ONLY AAA batteries X 4 (not supplied).
Replace the battery when the low battery icon (k)
appears on the display screen.
1. Disconnect the test probe leads and ensure the
selector dial (7) is in the ‘OFF’ position before
installing or removing the battery.
2. Unscrew the battery compartment cover (11). Fit the
batteries in the compartment, ensuring that they are
installed in the correct +/- orientation.
3. Ret the compartment cover.
AAAX4
1 Fig.
6. Installing/Replacing the Battery
Please visit drapertools.com for our full range of accessories and consumables.
5.2 Packaging
Keep the product packaging for the duration of the
warranty period in case the product needs to be returned
for repair.
WARNING! Keep packaging materials out of reach of
children. Dispose of packaging correctly and
responsibly and in accordance with local regulations.
(12) 1 x Test lead set (30677)
(13) 1 x Test probe set (30643)
(14) 1 x Needle probe set
(30675)
(15) 1 x Crocodile clip set
(30676)
(16) Storage case (not shown)
(12)
(13)
(14)
(15)
(+) Red
(+) Red
(+) Red
(+) Red
(-) Black
(-) Black
(-) Black
(-) Black
(7)
(11)
– 9 –
EN
Important: Before operating this product,
read and understand all the safety instructions
listed in this manual.
Important: Inspect the device for signs of damage,
particularly the probes and insulated leads.
Replace faulty leads immediately.
7.1 LCD Display Explained
a
b
d
e
f
g
i
j
k
m n
c
l
h
2 Fig.
a. Data hold
b. DC polarity indication
c. Relative value measurement
d. Auto range
e. AC/DC power indicator
f Auto shutdown mode
g. Maximum & Minimum
h. High voltage indicator
i. Continuity measurement
j. Diode measurement
k. Low battery indicator
l. Temperature unit/duty cycle
m. Resistance/Frequency unit
n. Voltage, current, capacitance units
7.2 Auto Shutdown Mode
• The device will shut down and automatically go into
sleep mode after 15 minutes without any operation.
Press the ‘SELECT’ button to restart the device.
• To cancel the auto shutdown, press and hold then
‘SELECT’ button, then turn on the device.
7. Operating Instructions
– 10 –
7.3 The Function Buttons (6)
Note: The selector dial (7) needs to be turned to the required position before pressing a function button.
Button Function
‘SELECT’ • Press to switch between measurement functions:
− AC or DC current.
− Resistance, Capacitance, Diode or Continuity.
• Press and hold to switch the light (8) function on or o.
Auto Shutdown mode:
• Press to wake the meter when in shutdown mode.
• The device will buzz 5 times for 1 minute before shutting down.
• To cancel; turn the selector dial (7) to the ‘OFF ‘position. Then press and hold the
button and turn the meter on.
• If the auto shutdown mode is switched o the meter will buzz 5 times every
15 minutes. It will resume when the meter is switched back on.
‘MAX/MIN’ • Press to display the maximum and minimum measured value.
HOLD • Press to hold the value shown on the screen.
• To cancel press the button again or press the ‘SELECT’ button.
Backlight
• To switch on the backlight – press and hold the button.
• The light will switch o automatically after 30 seconds.
‘RANGE’ • Switch between ‘AUTO’ and ‘MANUAL’ range. The default is ‘AUTO’ mode.
• Press the button to change to ‘MANUAL’ mode and set the range manually.
• To return to ‘AUTO’ press and hold the button for more than 2 seconds.
‘Hz%’ Frequency • Press to switch measurements between frequency and duty cycle during AC current
or AC voltage measurements.
‘REL’ Relative Value Measurement Function
• This function can be used when measuring voltage, current, temperature, resistance,
and capacitance.
• When selected the value measurement displayed on the screen will be the dierence
between the new measurement and the current reference value.
• The ‘REL’ function only operates with ‘MANUAL’ range.
• To cancel the ‘REL’ function press the ‘SELECT’ button.
7. Operating Instructions
– 11 –
EN
7.5 Measurements
• Turn the selector dial (7) to select the required measurement mode. Always return the dial to the ‘OFF’ position once
measuring is complete.
Measurement
Function
Dial Position
Action
AC/DC Voltage 1. Connect the positive red probe lead (+) to the (+) terminal (5) and the black
negative probe lead (-) to the ‘COM’ terminal (4).
2. Contact the probes with the testing point. The voltage value and polarity
will be displayed on the LCD screen (3).
CAUTION!
• DO NOT measure voltage higher than 600V.
• Avoid direct contact with your body during the high voltage measurement.
7.4 Using the Test Leads and Probe Sets
1. Remove the protective covers from both ends of the
test leads (12).
2. Fit the required probe or clip sets over the end of the
test leads - ensuring the correct polarity (+) red and
(-) black matches the leads (12) and the terminals
(4) COM (-) and (5) (+).
3. Remove the protective covers from the test end of the
probes (13) or (14) before measuring. Always replace
after use.
3 Fig.
CAT III
600V
COM
V/Ω
Hz%
SELECT
H
z
%
REL
4 Fig.
V
Hz%
(12)
(12)
(-) Black (+) Red
(13), (14)
or (15)
– 12 –
7.5 Measurements
Measurement
Function
Dial Position
Action
AC Current
DC Current
+ Press
‘SELECT’
until ‘DC’
on LCD
1. Disconnect the testing probes from the meter.
2. Turn the dial to either the 600A or 60A position.
• Start the measurement from the highest range if uncertain of the
measured value.
3. Push the trigger (2) to open the clamp, then pass either the live wire
or neutral wire to be measured in the centre of the clamp.
• DO NOT clamp both wires at the same time.
4. For best accuracy, ensure the wire is in the centre and vertical to the clamp.
5. Release the trigger so the clamp forms a closed loop.
6. The value will be displayed on the screen (3).
• Press the ‘HZ%’ button to switch between frequency and duty cycle
measurements.
• Note: In order to obtain accurate results before measuring DC, press the
‘REL’ button to zero the displayed value.
CAUTION!
• DO NOT turn the selector dial during the measurement. Release the clamp
from the measured object before turning the dial.
Resistance 1. Connect the positive red probe lead (+) to the (+) terminal (5) and the black
negative probe lead (-) to the ‘COM’ terminal (4). Then turn the selector dial.
2. Contact the probes with two terminals of the resistor.
3. The value will be displayed on the screen.
CAUTION! To prevent electric shocks:
• Ensure all voltage sources are powered o and all capacitors have
discharged before taking the measurement.
• DO NOT measure voltage and current with this function.
Capacitance
+ Press
‘SELECT’
until ‘F’
on LCD
1. Connect the positive red probe lead (+) to the (+) terminal (5) and the black
negative probe lead (-) to the ‘COM’ terminal (4). Then turn the selector dial.
2. Connect the probes with two terminals of the capacitor; red probe to the
positive and black to the negative.
3. The measured value will be displayed on the screen (3).
• 60.00 mF capacitance needs about 30 seconds to obtain a stable reading.
CAUTION!
• Discharge the capacitor before taking the measurement.
• DO NOT measure voltage and current with this function.
7. Operating Instructions
600A
60A
Ω
Ω
Ω
OR
– 13 –
EN
Measurement
Function
Dial Position
Action
Diode
+ Press
‘SELECT’
until
on LCD
1. Connect the positive red probe lead (+) to the (+) terminal (5) and the black
negative probe lead (-) to the ‘COM’ terminal (4). Then turn the selector dial.
2. Contact the red probes to the positive of the diode and black probe to the
negative of the diode.
3. The forward voltage will be displayed on the screen (3).
CAUTION! To prevent electric shocks:
• Ensure all the power is o and the capacitor is discharged before
this measurement.
• DO NOT measure voltage and current with this function.
Continuity
+ Press
‘SELECT’
until
on LCD
• The meter will buzz when the measured resistance is <50Ω.
CAUTION! To prevent electric shocks:
• Ensure all the power is o and the capacitor is discharged before
this measurement.
• DO NOT measure voltage and current with this function.
Frequency/
Duty Cycle
(AC Voltage)
+ Press ‘HZ%’
1. Connect the positive red probe lead (+) to the (+) terminal (5) and the black
negative probe lead (-) to the ‘COM’ terminal (4). Then turn the selector dial.
2. Connect the probes with the signal source.
3. Press ‘Hz”%’ button to switch between frequency and duty cycle
measurements.
Temperature 1. Connect K- type thermocouple (not supplied) to the ‘COM’ terminal (4) and
(+) terminal (5).
2. Turn the selector dial.
3. Change the temperature unit by pressing the ‘SELECT’ button.
Non Contact
Voltage Sensing
1. Move the sensor (9) towards the AC voltage source.
2. If voltage is detected the device will buzz and ‘----‘ will display on the screen.
• The number of bars shown will vary depending on the strength of the
voltage detected.
• ‘EF’ will be displayed on the screen if no AC voltage detected.
Ω
Ω
V
Hz%
NCV
– 14 –
9. Disposal
Important: Disconnect the probe leads from the
terminals and any other source of voltage before
performing any maintenance on this product.
8.1 General Maintenance and Storage
• Keep the product clean and free from dust,
debris and grease.
• Use a dry cloth ONLY to clean the housing of
this device.
CAUTION! DO NOT use abrasives, solvents or
other aggressive chemicals as these may
damage plastic or insulated parts.
• Replace the probe leads IMMEDIATELY if they are
damaged in any way or the conductors are exposed;
contact Draper Tools for replacement options.
Important: Replacement leads and test probes must
be rated as follows:
Leads: CAT IV 600V / 10A
Probes: CATII 1000V
Needle Probes: 600Vdc/Max 1A
Crocodile Clips: CAT III 1000V, CAT IV 600V, 10A
• If the low battery indicator
is shown on the
display, replace the battery as soon as possible;
refer to section 6. Installing/Replacing the Battery.
• Remove the battery when storing the device for
extended periods.
• Store the device in the case supplied in a cool,
clean and dry environment, out of direct sunlight
and out of reach of children.
Any servicing or repairs carried out by unauthorised
personnel or installation of spare parts not supplied by
Draper Tools will invalidate your warranty.
• DO NOT dispose of this product with domestic waste;
most local authorities provide appropriate recycling
facilities.
• DO NOT burn or mutilate batteries; this may release
toxic or corrosive substances.
• Dispose of batteries separately and in accordance
with local regulations.
8. Maintenance
10. Warranty
Warranty is 12 months from date of purchase. Visit drapertools.com/warranty for more information.
11. Explanation of Symbols
Read the instruction manual
Warning!
Warning! risk of shock
Do not incinerate or throw onto re
Class II construction
(Double insulated)
Alternating current
Earth
Direct current
Both direct & alternating current
Ω
Resistance in OHMS
WEEE –
Waste Electrical & Electronic Equipment
Do not dispose of Waste Electrical & Electronic Equipment
in with domestic rubbish
European conformity
UK Conformity Assessed
– 15 –
EN
© Published by Draper Tools Limited© Published by Draper Tools Limited
Delta International
Delta International BV
Oude Graaf 8
6002 NL
Weert
Netherlands
Contact Details
Draper Tools
Draper Tools Limited
Hursley Road
Chandler’s Ford
Eastleigh
Hampshire
SO53 1YF
UK
Website: drapertools.com
Email: [email protected]
Product Helpline: +44 (0) 23 8049 4344
Telephone Sales Desk: +44 (0) 23 8049 4333
General Enquiries: +44 (0) 23 8026 6355
Please contact the Draper Tools Product Helpline for repair and servicing enquiries.
