Maintenance
48
J
Removing the detector contamination
Physical polishing/cleaning using ceramic beads is performed for the detector unit. If any
hard-to-remove contamination adheres to the cathode electrode surface, it may largely affect
the measurement results. If the reading value drops or any abnormality is visually detected,
clean the cathode electrode according to the following procedure.
Q
Cathode electrode cleaning procedure
1.
Detach the connector cable to stop cathode rotation.
2.
Close the valve to stop the sample supply.
3.
Remove the nut, and then remove the detector from the measuring cell.
4.
Remove the cathode electrode from the detector.
Note
Do not dirt or scratch the cathode electrode. Dirt on the cathode metal will affect the measurement
value.
Connector cable
Nut
Detector
Measuring cell
Cathode electrode
