horiba GA-370, Instruction Manual

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6 Troubleshooting
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6 Troubleshooting
6.1 Before troubleshooting
Check the following items again before carrying out troubleshooting.

Is the power switch on?

Is there gas in the cylinder?

Is the main valve of the cylinder open?

Are the span gas concentration and range values correct?

Is the gas flowing normally?

Is a pipe disconnected?
6.2 Failure causes and remedial actions
This section describes trouble centering on the replacement of parts and various check items
that users may perform and the remedial actions to take.
If a problem is not resolved even after taking the remedial actions, be sure to contact HORIBA.
6.2.1 No sensitivity
Cause Remedial action Reference
No gas is flowing.
Gas flow rate is insufficient.
Check whether tubes to the analyzer is choked
or disconnected.
―
Apply pressure to the sample gas and
reference gas inlets.
―
Check that the main valve of the span gas
cylinder is open.
―
Check the flow rate. page 16
Check whether the filters are dirty. If they are,
replace them.
page 57
Span gas cylinder is empty.
If the residual pressure of the span gas
cylinder is approximately 1 MPa or less,
replace the cylinder.
―
Span gas is incorrect.
Use a span gas that is suitable for the
component to be measured.
―
Gas is leaking.
Replace the joints or otherwise repair the
piping.
―
Others Contact HORIBA or local representative. ―