Compur Statox 4120
6. Maintenance and calibration
6.1 Inspection Statox 4120 Sensor head
The following maintenance intervals are general recommendations. Specific applications may request
different intervals.
Splash guard, visual inspection every 4 weeks
Dust filter, visual inspection every 4 weeks
Statox 4120 sensor, replace after expiration of the „best before“ – date (calendar week / year)
Statox 4120 generator, replace after expiration of the „best before“ – date (calendar week / year)
Filter cartridge replace after 6 months
Water container visual inspection of liquid level every 6 months
Battery pack, replace after 18 months
Information on sensor and generator labels:
Serial No.
Gas
Current output at test gas concentration (sensor only)
Test gas concentration (sensor only)
Calibration factor (sensor only)
Best before (week / year)
Initial quality control personnel
Water container
Remove container. Fill level up to the marking. Non - foaming anti - freeze agents are OK to be used.
Statox 4120 dust filter
This filter protects the sensor from dirt. It must be in proper condition to allow the target gas to enter
the sensor. It must be replaced whenever it is dirty.
Splash guard
The splash guard at the sensor head bottom protects the dust filter from particles and water. It is
fastened with two screws.
Caution!
The type plate must be next to the dust filter to allow gas access to the filter cartridge.
Sensor replacement
Disconnect old sensor
Remove tube and sensor by turning it sideward
Replace dust filter
Replace bearing
Replace sensor
Connect new tube
Connect cable
Proceed factor calibration, see 6.2.2
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