Dräger 4543445, Operating Manual

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13
4 Maintenance
4.1 Calibration
4.1.1 Calibration Procedure
Calibration of this unit must be performed at regular intervals as detailed in the
sensor data sheet.
DraegerSensor IR:
If the zero signal has drifted significantly, or a calibration fails: calibrate the
DraegerSensor IR first (see manual P/N 9023843), then continue with the
calibration procedure for Polytron FX.
4.1.1.1 Zero Calibration
• Attach the pressure regulator to the nitrogen (N2) or Zero Air calibration gas
cylinder.
DraegerSensor PR and LC:
• Fit the calibration adapter tightly to the end of the sensor.
Draeger Sensor IR:
Maintenance
Calibration
Figure 7: Calibration