horiba APNA-370, Руководство по эксплуатации, Страница: 99 / 113

8 TROUBLESHOOTING
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8.3 Troubleshooting
This section describes troubleshooting mainly for the part replacement and checks, which are
expected to be performed by the customer.
If your trouble is not rectified through these efforts, be sure to contact us.
Note
Prior to taking your action, check the following points again:

The power source is connected.

The power supply voltage and capacity conform to the specifications.

The replacement of parts is performed as specified.

No output signal is available.

The output signal level is too low.
Note
For replacing parts, contact us.
Possible cause Remedial action Reference
No gas is supplied.
Check the measured gas line and calibration gas line for
disconnected piping.
page 3
Check to see whether the pump is operating. ---
No ozone is generated. Turn ON the ozonizer. ---
Possible cause Remedial action Reference
The range not set improperly. Set the range properly or select the automatic range. page 52
The zero calibration is not
accurate enough.
Perform the calibration again. page 27
The span calibration is not
accurate enough.
Perform the calibration again. page 28
The silica gel has deteriorated. Replace the silica gel. ---
The performance of the DO unit
has deteriorated.
Replace the catalyst. ---
The temperature of the detector
block heater case is too low.
When the detector block heater case is normal, its
temperature is adjusted to approximately 45

C.
Check the temperature wearing thin cotton work gloves.
---
The ozone generation
performance has deteriorated. Check the UV lamp for the time of its replacement (1
year). If it has been used for more than 1 year, replace it.
---
The sample inlet or outlet has
pressure loss.
Check the piping for clogging near the sample inlet or
outlet.
Rectify the piping for the sample inlet and outlet.
---
The filter is contaminated.
Replace the filter.
Replacement period of the filter element: Every 2 weeks
page 79