WatchGas PDM - Alarm Set Points and Calibration Concentrations; Alarm Set Points; Default Calibration Concentrations

Detection
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PDM Single Gas Detector User Manual
8
D e t e c t i on
Caution
The alarm limits are set based on international standards. Only change these levels to make
them conform to local rules and regulations.
3.4. ALARM SET POINTS
Gas O
2
CO H
2
S H
2
SO
2
Cl
2
NH
3
NO
2
Low alarm 19% 25 ppm 5 ppm 100 ppm 1 ppm 1,5 ppm 20 ppm 5 ppm
High Alarm 23% 25 ppm 5 ppm 100 ppm 1 ppm 1,5 ppm 20 ppm 5 ppm
3.5. DEFAULT CALIBRATION CONCENTRATIONS
GaS O
2
CO H
2
S H
2
SO
2
Cl
2
NH
3
NO
2
Concentration
0,0% Vol.
(99,9% N
2
)
100 ppm 50 ppm 500 ppm 10 ppm 10 ppm 100 ppm 10 ppm
4. Event Log
Last 30 events are stored on the PDM. Once 30 events are stored, the oldest log events get
overwritten. Stored log events can be transferred via WatchGas-IR Link.
Each alarm event is recorded as follows:
Types of alarms
Alarm concentration in ppm or %
Peak concentration