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LR30 & LR30W
Laser Receiver
User Guide
•
Introduction
Thank you for choosing the Spectra Precision
®
Laser Receiver LR30. The laser receiver
is a rugged, multi-purpose, easy-to-use electronic sensor that detects laser light
generated by rotating laser transmitters. The receiver works with nearly all models of
rotating lasers and detects both visible and invisible beams.
Before using the receiver, be sure to read this user guide carefully. Included in it is
information about setting up, using, and maintaining the receiver. Also included
in this manual are WARNINGS!, CAUTIONS, and Notes. Each of these words
represents a level of danger or concern. A WARNING! indicates a hazard or unsafe
practice that could result in serious injury or death. A CAUTION indicates a hazard or
unsafe practice that could result in minor injury or property damage. A Note indicates
important information unrelated to safety.
Your comments and suggestions are welcome; please contact us at:
Trimble - Spectra Precision Division
5475 Kellenburger Road
Dayton, Ohio 45424-1099 U.S.A.
Phone: (937) 245-5600 / (800) 538-7800
Fax: (937) 233-9004
Internet: www.trimble.com
Safety
Please follow all operating and safety instructions in this guide and that of your
machinery. Perform periodic checks of the product’s performance. Trimble or its
representatives assume no responsibility for results of the use of this product including
any direct, indirect, consequential damage, and loss of profits. Check your work
frequently.
WARNING: When working near construction or agricultural machinery, follow
all safety precautions as described in the machinery’s user guide.
WARNING: When excavating, follow all excavation and trench safety regulations
and practices.
WARNING: Be aware of all overhead obstructions and electrical power lines.
The receiver and mast may be higher than the machinery. Remove when transporting
machinery.
CAUTION: Do not disassemble any part of the receiver other than to replace
batteries. The receiver is to be serviced by authorized Trimble service personnel only.
Maintenance and Care
Your receiver was shipped in a protective carrying case. If the receiver is transported
from job to job inside its protective case and normal instrument precautions are
followed, the receiver will provide many years of service. When storing the receiver,
be sure to store it in its carrying case.
Do not wipe dust or dirt off the receiver with a dry cloth as scratching could occur,
possibly damaging these surfaces. Use only a good quality glass cleaner with a soft
cloth on all external components. If these surfaces have hardened concrete or other
materials on them, take the system to your Authorized Service Center for cleaning.
If the receiver will not be used for more than 30 days, remove the alkaline batteries
from it. Be sure to dispose of all batteries properly. Refer to your state or local
requirements for the disposal information.
Using the Receiver
Operation
Deadband (Accuracy) Button
The deadband, or on-grade accuracy, has three options: fine, standard, and wide. This
selection can be changed to meet various job conditions. To show the current selection,
press the button once; the status LED lights. To change the current selection, press the
button again. The deadband and corresponding LED change with each press.
Features and Functions
1. Aluminum-Cast Upper and Lower Housings—
protect the receiver.
2. Polycarbonate Housing—protects the
electronics.
3. Receiving Windows—include photocells for
laser beam reception.
4. Super-Bright LEDs—are highly visible and
graphically display grade position. The green
LEDs display on-grade information, and the
red LEDs display high and low information.
5. Touch-Panel—contains power, deadband,
and display-brightness buttons. The panel also
displays low-battery warning and deadband
selection. Unmarked buttons and button
combinations provide additional functions. For
more information, see the “Operation” section
of this guide.
6. Mounting Knobs—are attached to stainless
steel clamps. The large front-facing knobs allow
for quick and easy installation to a round pipe, square tubing, or magnetic mount.
7. Access Screws—allow easy access to battery compartment so the batteries can be
replaced.
8. Accessory Connector—accepts the cable to the optional remote display, machine
power cable, or automatic control box. The connector also accepts Ni-MH battery
charger. A dust cap covers the connector to help keep it clean.
Installing and Recharging the Batteries
Alkaline Batteries
1. Hold the receiver so the accessory connector is pointing up.
2. Remove the dust cap from the accessory connector.
3. Loosen the two thumb screws and remove the battery-access cover.
4. Install four “C” cell alkaline batteries as shown on the label diagram inside the
battery compartment noting the (+) and (–) terminals.
5. Replace the battery-access cover. Firmly tighten the two thumbscrews.
6. Replace the accessory-connector dust cap.
Nickel Metal Hydride Batteries (Ni-MH)
Rechargeable batteries require an initial and subsequent charging time of
approximately 3 hours. Two or three charging cycles may be required to obtain
maximum battery life. To charge:
1. Remove the dust cap from the accessory connector.
2. Insert the cannon adapter into the receiver
accessory connector aligning the slot and
connector key. Insert the charger female barrel
into the cannon adapter.
3. Make sure the proper AC prongs are on the charger.
Note: To change the prong adapter, press the tab release in the direction indicated
by the arrow and remove the existing prong. Insert the proper adapter and release
the tab.
4. Plug the charger into an appropriate outlet. The receiver will not operate when it
is charging.
Note: The charge-status indicator located on the back of the housing remains
solid when the batteries are charging. The left LED flashes when the batteries are
fully charged.
5. When the batteries are charged, unplug the charger from the outlet, and remove
the cannon adapter from the accessory connector. Replace the dust cap.
Battery Safety
Built-in overcharging protection prevents damage to the receiver if it is left on charge
after being fully charged. Charge protection also prevents damage if you accidentally
try to recharge alkaline batteries.
CAUTION: Do not attempt to charge alkaline or other disposable batteries.
Note: The batteries should only be charged when the receiver is between 0 °C to
45 °C (32 °F to 113 °F).
The rechargeable battery electronics include charge status and charge-error indicators
located on the back of the housing.
Charge Status Indicator: The LED remains solid when the batteries are charging.
The LED flashes when the batteries are fully charged. When the batteries are charged,
unplug the charger from the outlet, and remove the cannon adapter from the accessory
connector.
Charge Error Indicator: The LED is solid when the internal battery connection has
an error, the batteries are installed incorrectly, the battery type is incorrect, or a battery
cell is dead. A flashing LED indicates that the temperature is too hot/cold to charge.
Charging automatically starts when the temperature is within the above noted range.
Battery Replacement
1. Remove the dust cap, loosen the two thumb screws, and remove the battery-access
cover.
2. Remove the old batteries. Install new batteries as previously described. See
“Alkaline Batteries” for more information.
3. Replace the access cover, firmly tighten the two screws, and replace the dust cap
Note: Refer to your local requirements for proper battery disposal.
Power Button
1. Press the power button to turn on the receiver.
Notes: All the LEDs light briefly. Quickly following, each LED grade-display row
turns on and off from top to bottom and each status indicator turns on and off.
Additionally, the current deadband status momentarily displays. If the receiver is
out of a laser beam, the center green LED flashes to confirm power is on. If the
receiver is in a laser beam, a corresponding LED grade display lights.
2. To turn off the receiver, press and hold the power button until the LEDs light;
then release the button. Settings will be retained the next time the receiver is
turned on.
Default Settings
The factory default settings are: Deadband - Standard; Display - Dim; Out-of-Beam
Indication - On; Laser Out-of-Level Warning - Off; and Beam Averaging - On. The
receiver always starts up in the last selected settings.
Display-Brightness Button
The display-brightness button controls the brightness for the LED grade display.
Options include Bright and Dim. Use dim for normal and lower light conditions and
bright for sunny daytime operation. Dim conserves battery life.
When the receiver is out of the laser beam and the display-brightness button is pressed,
the LEDs display a circle showing the current setting. To change the setting, press the
button again while the LEDs are activated. The LEDs then display the new setting.
When the receiver is in the laser beam, simply press the button and the setting changes.
Low-Battery Warning
The receiver has a low-battery warning LED. During
normal operation with good batteries, the LED is off.
When the batteries are low, the LED begins flashing.
When the warning occurs, the receiver continues to
operate as normal, but about 90 minutes of battery life remain. When the batteries
are too low for normal operation, the LED remains on, the four corner grade-display
LEDs flash, and the receiver no longer receives laser signals. Replace the batteries (or
recharge them if you’re using rechargeable batteries). The warning does not operate
when the receiver is connected to machine power via a power cable.
Fine Deadband
3/16"
(0.20"/5mm)
Standard Deadband
1/2"
(0.45"/12mm)
Wide Deadband
1-1/4"
(1.25"/32mm)
7
6
5
4
3
2
1
1
6
8
7
Display
Brightness
Button
Deadband
(Accuracy)
Button
Touch Panel
Low-Battery
Indicator
Unmarked
Button
Deadband
Indicators
Unmarked
Button
Power Button
Cannon Adapter
Charger
Charge Status Indicator
Solid – Charging
Flashing – Charging Complete
Charge Error Indicator
Solid – Battery Problems
Flashing – Temperature Out-of-Limits
(Located on lower rear of polycarbonate housing)
NOTE: The LR30W ships configured to wireless (Radio) communication mode for
use with a RD20 remote display. To change to wired (RS-485) mode for use with
a control box, press the power, deadband and right-hidden buttons simultaneously
(make sure the receiver is powered up first). Pressing this 3-button combination will
toggle the receiver between wireless (Radio) and wired (RS-485) modes as indicated
by the following:
Radio Mode Indication: The two outer on-grade LEDs double-blink every few
seconds
Wired (RS-485) Mode Indication: The center on-grade LED double-blinks every few
seconds
Once configured the receiver will remember it’s setting after a power cycle. For
additional wireless RD20 operating features please see the RD20 User Guide.
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