Operational Characteristics - Dräger PIR 3000 Instructions For Use Manual

Operational Characteristics

The gas transmitter generates an output signal which is proportional to the meas-
ured gas concentration. The factor of proportionality between displayed value and
the measured gas concentration is determined by the span calibration of the gas
transmitter (see "Manual span calibration of the output signal." on page 15).
The gas transmitter regularly runs self tests for numerous internal functions. As soon
as a divergence from normal operation is detected, the device will edition a fault
message.
Output Signals of the Device:
Display of
zero point
full scale deflection
under-range
over-range
span gas signal to indicate begin and
successful termination of gas transmitter
calibration via magnetic pin
Fault and inlet signal (during self check
and running-in period)
Warning (while increasing the Drift of the
zero point into the negative range)
Output Signal
4 mA
20 mA
3.8 mA to 4 mA
20.0 mA to 20.5 mA
3 mA
1 mA
2 mA
Operational Characteristics
11