ENGLISH
52
Troubleshooting
If measurement conditions do not permit an accurate measurement,
an error code will appear on the LCD display. For an error code
description refer to the following table.
Code Description Correction
204 Calculation error Repeat the measurement
252 LDM too hot Let the LDM cool down
253 LDM too cold Warm the LDM up
255 Weak signal Change the target surface (e.g.,
put white paper on glass door)
256 Incorrect reading Change the target surface (e.g.,
put white paper on glass door)
257 Too much
background light
Shadow the target area
258 Outside of range Stay within the working range
260 Laser beam interrupted Repeat the measurement
294 Display overflow Switch to metric units and
repeat the measurement
Cleaning
WARNING:
• Remove the batteries before cleaning your laser unit.
• Never use solvents or other harsh chemicals for
cleaning the non-metallic parts of the laser. Use a cloth
dampened only with water and mild soap.
• Never let any liquid get inside the unit; never immerse
any part of the unit into a liquid.
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