SPX100 SENSOR
DUST EMISSIONS CONTROLLER
Notice Technique
FI 72.0110.0316E
Page 10 sur 27
2) Alarm
The SPX 100 has an adjustable alarm threshold (see « alarm adjustment »).
Each time, the averaging value (1 to 60 min) is compared with the alarm threshold, the
alarm is activated when the average is above the alarm threshold :
- The DEFAULT relay pulls down
- The « bargraph » on front panel is flicking
The alarm is even held if the measure downs again the alarm threshold.
To cancel the alarm, the user must :
- Press the « alarm » key and keep it pressed
- Press the « valid » key (see « alarm adjustment »)
(option of a non maintained alarm: please consult us)
3) 4-20 mA (in option)
The 4-20 mA output scale is adjustable.
The 4-20 mA output recopies the instantaneous measure or the average measure according
to the display (see « measure reading adjustment »).
4 mA for 0 measure,
20 mA for the value of the 4-20 mA input scale.
4) Connection
Each time the base communicates with the sensor via a bi directional digital data link. If
there is a problem (cutted cable, bad connections, component failure), this message
appears:
CONNECTION FAULT
SENSOR
In this case, the 4-20 mA output becomes à 0 mA and the DEFAULT relay pulls down.
This message disappears if there is no problem.
