Unit LM520G-LD User manual

P/N:110401109493X
LM520G-LD/LM530G-LD/LM550G-LD
Laser Level English Manual

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Preface
Thank you for purchasing this brand new product. In order to use this product
safely and correctly, please read this manual thoroughly, especially the safety
notes.
After reading this manual, it is recommended to keep the manual at an easily
accessible place, preferably close to the device, for future reference.
Limited Warranty and Liability
Uni-Trend guarantees that the product is free from any defect in material and
workmanship within one year from the purchase date. This warranty does not
apply to damages caused by accident, negligence, misuse, modification,
contamination or improper handling. The dealer shall not be entitled to give any
other warranty on behalf of Uni-Trend. If you need warranty service within the
warranty period, please contact your seller directly.
Uni-Trend will not be responsible for any special, indirect, incidental or subsequent
damage or loss caused by using this device.
Laser Level English Manual

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Control panel
Vertical laser
window
Battery pack
Lower reference point
Horizontal laser
window
Base fine-tuning
1. Description
2. Safety Instruction
Please carefully read and obey the following safety instructions before use,
otherwise may void the warranty:
Warning!
Class II laser product
Maximum output power: 1mW
Wavelength: 510nm-515nm
≤
Laser radiation:
Never stare into the laser beam directly
Do not expose eyes to the laser beam directly
Avoid using optical instrument
Please read all the instructions carefully before operation. Do not remove any
label of device.
Do not expose eyes to the laser beam (green/red laser) during operation.
Prolonged exposure to the laser beam may cause eye damage.
Never stare into at the laser beam directly or observing it by any optical
instrument. Do not set the meter at a visual height (to avoid injury caused
by exposing eyes to laser beam).
Do not disassemble or modify the laser meter in any way. No inner parts can
be repaired by users. Unauthorized modifications may emit harmful laser
radiation. Please send the meter to professional maintenance personnel.
Keep the laser meter away from children or serious injury may occur.
Class II laser should not be observed for more than 2s.
For safety and convenience, the following print (or label) should be placed on
product to inform the laser type. Some product sets provide with accessory
glasses. Please note that this kind of glasses is not safety glasses. It only
awayhelps user to easily identify the laser beam in strong ambient light or far
from the laser meter source.
Do not use the meter in flammable, explosive environment.
It is not recommended to clean it with organic dissolvent.
3. Cautions
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5
2 build-in 18650 Li-ion batteries of this product are not allowed to be removed by
users. Otherwise we will not responsible for this kind of repair.
Safety of Li-ion Battery:
Please charge the battery pack with the specified charger. Fire hazard may
be caused by improper charger using.
When the battery pack is not in use, keep it away from metal objects (such as:
paper clips, coins, keys and nails) to prevent two ends’ connection, which
may cause burning or fire hazard.
Avoid contact or eye contact with the batteries’ liquid leakage, which corrodes
and burns. Flush with water in time if you touch it. Immediately go to hospital
for medical treatment in case of eye contact.
Do not use the damaged or modified battery pack to prevent unpredictable
results. Unauthorized repair for battery pack is not allowed. Please send it
to manufacturer or authorized service provider.
Do not expose the batteries to the fire or high temperature over 130°C to
prevent explosion.
Please charge in 24 hours when the battery is low or the laser is shut down
by low power.
Optimal charging temperature: 0°C-20°C (32°F-68°F)
Device Installation
Place the meter on flat ground, lifting platform or fix it on a tripod. Make sure the
bottom screw is tightened to prevent the device dropping from the tripod.
Battery Installation
The product comes with a 3.7V 4000mAh li-ion battery pack, please install the
battery pack correctly to the groove.
Leveling
Before use, please level the device by the leveling bubble on the top. The laser
tube will blink and the buzzer beeps if the leveling range is exceeded.
Battery Charging
The blue battery indicators will display the battery status: 25%-50%-75%-100%.
The remaining battery capacity is 25% or less when only the leftmost indicator
is on. Please charge the battery in time, otherwise when the battery is low, the
indicator of leveling bubble will blink and the laser darkens.
Take out the battery pack, insert the charging wire and the adapter into it. Charging
starts when the indicators blink. Charging is completed when 4 indicators are
keeped on. Then the charging wire should be unplugged. After the battery pack
cooling down, install it on the device.
Laser Function
Turn the power switch to ON, the horizontal laser will be enabled and can be
adjusted by H/V button. At this point, short press the V button to enable V1,
V3 and lower reference point, press the V button again to enable V2 and V4.
The buzzer alarm will be triggered if the leveling angle of 3.5° is exceeded.
Turn the power switch to OFF to turn off the device.
In power-off state, long press H/V button for 3s to enter the lock mode (diagonal
function), the button indicator will be on, adjust the laser line by H/V button.
At this point, short press the V button to enable V1, V3 and lower reference
point, press the V button again to enable V2 and V4. Short the H/V button to
turn off the lock mode.
Short press the OUTDOOR button to enter pulse mode.
4. Battery Charging and Safety Instructions
5. Operation Guideline
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2 3 5
3 4 6
Class II
±3mm@10m
V≥110° H≥130°，
LM520G-LD LM530G-LD LM550G-LD
6. Specification
Models
Laser lines
Laser points
Laser level
Laser accuracy
Emission angle
Self-leveling
Self-leveling time
Self-leveling range
Self-leveling alarm
Diagonal mode
Outdoor pulse mode
Buttons
Operating distance
Tuning mode
Graduated collar
Size of screw hole
≤5s
3° (±0.5°)
√
√
√
√
3 buttons (H/V/Outdoor)
25m (point) /20m (line) @300Lux
360° fine tuning
√
5/8”
The laser device has been carefully calibrated and packaged according to
various precise specifications before leaving the factory.
It is recommended to perform accuracy test before the first-time use and
perform test regularly, especially during high precision requirements.
Turn the device off when it is not in use.
Do not short-circuit the battery contacts, charge the alkaline battery, or throw
the battery into fire, these actions may cause dangerous accidents.
Do not use old and new batteries simultaneously. Be sure to replace all of
them with the same type of batteries in same brand.
Keep the battery out of the reach of children.
Do not expose the meter to sunlight or high temperatures. The meter shell and
some parts are made of plastic, which may be damaged in high temperature
environments.
Clean the outer plastic parts with a damp cloth. It is not recommended to clean
it with dissolvent. Wipe away moisture with a dry soft cloth before putting the
meter into the box.
Store the meter properly in its pouch or package. Remove the batteries during
long-time storage to avoid battery leakage.
Do not dispose the meter into household trash.
Dispose the battery or related electronic waste according to local laws and
WEEE (Waste Electrical and Electronic Equipment) rules.
8. Accessories
English Manual
Adapter
Fiducial mark
Laser glasses
Toolbox
7. Maintenance
Laser Level English Manual Laser Level English Manual

The contents of this manual are subject to change without prior notice.
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Laser Level English Manual