Operating Manual
42
1300-87076-1A Rev. 1
13. Troubleshooting
Problem
Cause
Action
The display is off even
when the power is
switched on
Power is not reaching the system
Check power source voltage
Power cord is not plugged into the socket
properly
Reconnect the power cord
Faulty power adapter
Return the unit for service
Can't reach sample
accuracy
The solutions are not homogeneous and well-
mixed prior to sampling
Ensure all solutions are homogeneous and
well-mixed prior to sampling
Sample has air bubbles
Remove air bubbles from sample
There are scratches on the surface of the
quartz glass
Return the unit for service
Quartz glass surface is contaminated
Clean the quartz glass above and below with
a suitable solution
Pulsed Xenon flash lamp problem
Return the unit for service
Optics module problem
Return the unit for service
Optical fiber problem
Return the unit for service
Mechanism alignment problem
Return the unit for service
Detection time is too
long
Faulty electronic module
Return the unit for service
Faulty optics module
Return the unit for service
Pathlength selector does
not work
Faulty pathlength selector mechanism
Return the unit for service
Pathlength selector sensor problem
Return the unit for service
No beep sound when
tapping icons
Sound may currently be set to off
Check beeper setting in system mode
Faulty touch panel
Return the unit for service
The display goes off
Faulty backlight
Return the unit for service
Faulty LCD panel
Return the unit for service
Display is too dark or
bright
Display brightness is not adjusted properly
Adjust display brightness potentiometer
Detection arm will not
close
Foreign object between detection arm and the
area inside the detection arm
Remove the foreign object or matter
Faulty detection arm mechanism
Return the unit for service
Error message appears
Refer to the list of error messages in section
13.1
Check the nature of the error and take the
suggested actions
