Adjustment of gas sensitivity
This procedure takes place after the zeroing stage:
1. Inhibit any alarm signals on the controller.
2. Place the calibration cup on the detector head (Figure 13, "A").
3. Connect the calibration cup to the calibration gas cylinder "D" by using a
flexible hose "B".
4. Open the valve on the calibration gas cylinder "C" (flow rate 30 to 60 litres/hr).
5. After the measurement has stabilized (approx. 2 minutes), read the display of
the central measuring unit.
6. Adjust "S" on the measuring unit in order to display the desired value.
7. Close valve "C" on the cylinder and remove the calibration cup "A".
8 . Walt for the measured signal to return to zero and reset the alarm signals on
the controller.
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