CDM-Sensor –Dust Emission
Incident Detector
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ADJUSTMENTS
Self-learning of reference point (PR):
Value of the mean dust rate, in normal conditions of exploitation.
1/ Sensor in MEASURE mode
2/ Open the cover of the sensor, after taking off the screw –Cover opening
3/ Maintain « F » key until the bargraph starts to turn on as a chase.
4/ Close quickly the cover with the screw, in order not to disturb the measure by external environment (electromagnetic
wave). The self-learning will really start only start 10 seconds when the sensor is in self-learning mode.
5/ At the end of the self-learning, automatic transition to MEASURE MODE of the CDM.
Time of the self-learning: X threshold.
During the whole self-learning phase, we recommend that the installation is in normal running conditions.
Adjustment of the Value X (from 1 to 33 min):
Value in minutes. During this time the CDM defines a mean value of the dust rate, in MEASURE mode and
AUTOLEARNING mode of the PR. This mean value is recalculated each second.
1/ Sensor in MEASURE mode.
2/ Open the cap of the sensor by taking off the screw –cap opening.
3/ push the key « F » several times until the led X flashes.
Visualization of the adjustment value with the bargraph (see Board 2).
4/ Adjust the value X by pressing the button « + » until you get the expected value.
The adjusted value can only be increased. When the max value is reached, we go back to mini value.
5/ Automatic transition to MEASURE mode when no key is pressed during more than 5 seconds.
Adjustment of threshold n1 (from x2 to x33):
This value is used to adjust the value of the threshold ALERT: threshold ALERT= n1 x PR
1/ Sensor in MEASURE mode.
2/ Open the cap of the sensor by taking off the screw –cap opening.
3/ push the key « F » several times until the led n1 flashes.
Visualization of the adjustment value with the bargraph (see Board 2).
4/ Adjust the value n1 by pressing the key « + » until you get the expected value.
The adjusted value can only be increased. When the max value is reached, we go back to mini value.
5/ Automatic transition to MEASURE mode when no key is pressed during more than 5 seconds.
Adjustment of threshold n2 (from x2 to x33):
This value is used to adjust the value of the threshold ALARM: threshold ALARM= n2 x PR
1/ Sensor in MEASURE mode.
2/ Open the cap of the sensor by taking off the screw –cap opening.
3/ push the key « F » several times until the led n2 flashes.
Visualization of the adjustment value with the bargraph (see Board 2).
4/ Adjust the value n2 by pressing the key « + » until you get the expected value.
The adjusted value can only be increased. When the max value is reached, we go back to mini value.
5/ Automatic transition to MEASURE mode when no key is pressed during more than 5 seconds.
