Hach SL250 Manuel D'utilisation Simplifié page 21

Error/Warning
Too much time in The Chemkeys were left in
sample the sample too long. A
measurement error occurred.
The sample detector pin area
is dirty if the warning shows
while the meter is not in the
sample.
Over Range The concentration is more
than the upper limit of the
current method.
Under Range The concentration is less than
the lower limit of the current
method.
Tray too cold. The meter may be too cold to
heat the tray or the heater is
not operational.
Tray too hot. The meter is too hot to make
a correct measurement.
Too much ambient The ambient light is too high
light. Insert Chemkey to read the barcode.
in darker
environment
Low Light. Clean Chemkey does not operate
Chemkey slot. correctly. Chemkey is not
installed correctly.
Instrument requires Module failure.
service.
Sample not found.
• The sample cup is not filled
• The sample conductivity is
11.1 Do a diagnostic check
The diagnostic menu shows the information about the current versions of the meter and the option to
format the memory card.
1. Push Main Menu>Diagnostics.
2. Select an option.
Option
Disk Space
Config Versions
Possible cause
to the fill line.
less than 2 µS/cm.
Description
Show the disk space for the user memory and for the internal memory.
Show the configuration versions of the meter settings.
Solution
Remove the Chemkeys immediately when prompted.
Clean the sample detector pin area. Refer to
replace parts on page 18. If the problem still occurs,
contact technical support.
Dilute the sample and do the measurement again.
Move the meter to a warmer ambient temperature and
measure again.
Replace the tray.
Make sure to cool the meter or move the meter out of the
warm ambient area.
Move the meter to a darker environment and put the
Chemkey into the slot again.
• Put the Chemkey into the slot in one push.
• Use a new Chemkey.
• Clean the Chemkey slot. Refer to
on page 19.
• If the problem still occurs, contact technical support.
Use the modules that operate correctly. Contact technical
support to repair the defective module.
• 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
on page 19.
• If the problem still occurs, contact technical support.
Clean or
—
Figure 12
Figure 11
English 21