8 Troubleshooting
80
Q
Output is too high.
Q
The O
2
analyzer output is approximately 21 vol%.
O
2
analyzer output is high.
Inadequate range
Check the displayed concentration
value.
Change the measurement range to
the specified proper range.
page 33
Calibration is not correctly
performed
Confirm the calibration concentration
setting value and the cylinder
concentration.
Perform the zero/span calibration
again.
page 19
Zero calibration gas flows.
Confirm if the calibration mode selects
zero gas.
Return the calibration mode setting
to MEAS.
page 28
Others
－
Contact HORIBA.
－
Cause
Check item
Counteraction
Reference
Inadequate range.
Check the displayed concentration
value.
Change the measurement range to
the specified proper range.
page 33
Calibration is not correctly
performed
Confirm the calibration concentration
setting value and the cylinder
concentration.
Perform the zero/span calibration
again.
page 19
Electric cooler broken
Confirm that the electric cooler power
lamp is lit and the cooling fan operation
operates correctly.
Confirm that the temperature of electric
cooler is 0ºC to 8ºC (under 15ºC if the
temperature inside the cabinet is over
40ºC).
Confirm that the cooling fan is
activated.
Perform the cleaning of radiation fin.
If the situation is not improved,
replace the electric cooler.
page 6
Analog output mode is
selected.
Confirm if the screen shows analog
output mode.
Exit from the analog output screen
to MEAS. condition.
page 38
Span calibration gas flows.
Confirm if the calibration mode selects
zero gas.
Return the calibration mode setting
to MEAS.
page 28
Others
－
Contact HORIBA.
－
Cause
Check item
Counteraction
Reference
Pump is stopped.
Confirm the flow by the flowmeter on
the analyzer front panel.
Confirm the pump power switch.
Turn ON the pump power.
page 3
Leakage from the primary
filter
Check if the filter element is correctly
attached.
Confirm if the O-ring and packing have
no deterioration.
Attach them correctly.
Replace the O-ring and packing.
page 61
Leakage from mist catcher
attachment part
Confirm that the mist catcher is
correctly attached.
Confirm if there is no crack in the
rubber joint.
Attach it again.
Replace the rubber joint.
page 64
Leakage from the secondary
filter attachment part
Confirm that the secondary filter is
correctly attached.
Confirm if there is no missing O-ring or
packing to be attached.
Attach it again.
page 62
Leakage from NOx converter
attachment part
(With NOx converter)
Confirm that the NOx converter is
correctly attached.
Confirm there is no crack in the rubber
joint.
Attach it again.
Replace the rubber joint.
page 67
Others
－
Contact HORIBA.
－
Cause
Check item
Counteraction
Reference
