Error/Warning Possible cause Solution
Low Light. Clean
Chemkey slot.
Chemkey does not operate
correctly. Chemkey not installed
correctly.
• Put the Chemkey into the slot in one push.
• Use a new Chemkey.
• Clean the Chemkey slot. Refer to Figure 12
on page 20.
• If the problem still occurs, contact technical
support.
Meter requires service. Module failure. Use the modules that operate correctly.
Contact technical support to repair the
defective module.
Meter does not detect
sample
• The sample cup is not filled to
the fill line.
• The sample conductivity is less
than 2 µS/cm.
• Make sure that the sample cup is filled to the
fill line.
• Make sure that the sample conductivity is
more than 2 µS/cm.
• Clean the sample detector. Refer to
Figure 11 on page 20.
• If the problem still occurs, contact technical
support.
Clean or replace parts
For some errors and warnings it is a requirement to clean the Chemkey slots, the optical windows,
the barcode window, the sample detector or to replace the trays. Use isopropyl alcohol to clean the
parts. Use water and a mild detergent to clean the light shield. Make sure to move the cotton tipped
applicator in one direction only. Refer to Figure 10 to remove the optics access cover, the light shield
and the trays. Refer to Figure 11 and Figure 12 for the detailed cleaning procedure.
Items to collect: Cotton tipped applicator, isopropyl alcohol, water and a mild detergent
Figure 10 Parts removal and reassembly
English 19
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