What to do if...
XD 7500
160
ba77191e01 - 71310060
04/2018
Obviously incorrect
measured values
Fluctuating
measured values
Self test failed.
– The cell shaft is contaminated
– Clean the cell shaft (see Section
– Restart the instrument
– If necessary, confirm the
Please
remove cell
message with
<START·ENTER>
.
– Instrument defective
– Please contact the service
department.
Cause
Remedy
Cause
Remedy
– Cell contaminated
– Clean the cell
– Dilution set incorrectly
– Adjust dilution
– Selected method not suitable
– Select different method
– Zero measurement incorrect
– Perform zero measurement
– Blank value incorrect
– Remeasure the blank value
Cause
Remedy
– Cell shaft cover open
– Close the cell shaft cover
Cause
Remedy
–
System test
: Instrument defective
– Please contact the service
department.
–
Filter test
: Instrument defective
– Please contact the service
department.
–
Wavelength calibration
:
– Foreign particle in the cell shaft
– Lens smudged
– Instrument defective
– Remove foreign object
– Clean the lens (see Section 5.2.3
or Section 6.1).
If this happens repeatedly, check
the operating conditions (see
Section 3.2)
– Please contact the service
department.