8
Common Troubleshooting
Before starting up,check whether the battery is properly installed.
If you you still can’t troubleshoot the fault or other faults occur,please contact us for after-sales service.
Phenomenon
Cause
Solution
Press ON/OFF,no display
Battery power off
Replace battery
Button insensitive
Water or oil stains on the surface
of the instrument
Wipe clear
Large measurement error
Have bubbles in cuvette
Remove bubbles,test again
Detection tank not clean
Clean detection tank,test again
Display Err 1
Detected value is too low during
zero set
Use pure water zero set
Shutdown instrument then start on
again
Display Err 2
Detection of effective value out of
tolerance
Replace low concentration
solution
Display Err3
The absorbance of the detection
solution is out of range
Replace low concentration
solution
Display HHHH
The
detected
solution
concentration
exceeds
the
set
range
20%
Replace low concentration
solution
