Display of the address (digital detector) or line number (analog
detector) to which the detector is connected.
Selecting the detectors to be calibrated:
■ Select one or several detectors using the previous detector or
next detector keys.
■ On pressing the Select key, press Cal gas to enter its value by
means of the ↑↓ keys. Validate by pressing Enter.
Note: Only analog detectors that are not equipped with a local
display can be calibrated from the MX 32 controller. For the other
detectors, the menu “Sel. Detector” only makes it possible to put
them in calibration mode so that they do not activate alarms during
their manual calibration.
■ Press Escape to launch the procedure of recording the
measurements on the detectors to be calibrated. Proceed to
paragraph “2 Recording”.
Display the calibration gas.
Figure 38: Example of the “Select detectors” screen
2. Start Recording
■ Yes: Launches the recording of calibration measurements for the selected
detectors. From this moment onwards, all the calibration measurements
are recorded for these detectors. “Start recording” is then displayed. The
calibration of the detectors with the help of the standard gas can begin.
For a detector in which the cell has been changed, it is important to adjust
the detector locally to obtain a 4-20mA output corresponding to the
detector range.
For detectors connected to the analog input module, perform the
adjustments directly on the module (see page23 ).
Attention: During calibration, the standard gas must be injected for at
least thirty seconds.
■ No: Exits the recording procedure
3. Stop recording
■ Yes: Detector calibration having finished, this validates the end of
calibration measurement recording for the detectors previously selected.
From this moment onward, no calibration measurement is recorded. “Stop
recording” is then displayed.
■ No: Exits the end of the recording procedure.
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