Operation Guide

Prompts
During use, the following prompts may appear
in the main display area
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Prompts Reason Solution
Err6
Err8
Err5
Err3 Charge the battery
Err2
Err1 Signal is too weak
Signal is too strong
Battery voltage is
too low
The angle sensor
is wrong
Pythagorean
measurement
violations
Exceeds the
measurement
distance range
Measure the targetwith strong
reflectivity
Measure the target with weak
reflectivity
Re-measureto make sure the
hypotenuse is larger than the
right-angled side
Make the instrument use
within the range
returned to the factory for repair