EN
TROUBLE SHOOTING
Code
204
208
220
255
256
261
500
42
Cause
Calculation error
Excessive current
Battery weak
Signal too weak or
measuring time too long
Signal too strong
Out of measuring range
Hardware error
Corrective action
Repeat the measurement
Contact your dealer
Charge the battery
Change the target surface
Change the target surface
Select the measuring distance
within the range
Power on/off the device several
times. If the error code still
appears contact your dealer.