
37
Troubleshooting
When CELL indicator is lit in red
This indicates that sample fl uid with particle number concentration exceed-
ing specifi cations was passed through the system, or that contamination or
condensation has occurred in the fl ow cell. Perform purging as described in
the section “Cleaning the piping” on page 31. If the CELL indicator stays lit
in red also after purging of the piping, there may be a problem with the fl ow
cell or particle detector assembly. Please contact your supplier.
When LIQUID LEAK indicator is lit in red
A leak has occurred in the chassis, or there is a problem with the leak sensor.
Stop the sample fl uid fl ow to the KS-19F and turn off the controller KE-40B1.
Then contact your supplier.
When LASER indicator is lit in red
The light source temperature is out of range. In this case, correct measurement
is not possible. If these occur frequently, there may be a problem with the light
source. Please contact your supplier.
When LASER indicator fl ashes in red
The light source output has decreased to the rated level or below, or becomes
unstable. If these occur frequently, there may be a problem with the light
source. Please contact your supplier.
When LASER indicator fl ashes in green
The light source is nearing the end of its service life. It is recommended to
have laser maintenance performed within one month after the LASER indi-
cator starts to fl ash in green. Please contact your supplier.
Summary of Contents for KS-19F
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