GMI PS200 series User Manual

4-10
USER HANDBOOK
4.5.3 Sensor Fault
Note: The PS200 instrument features continual sensor
integrity detection. This may generate a sensor fault
during operation
There are three types of sensor fault as illustrated in the
following displays:
1) If a “SENSOR FAULT” warning and a spanner symbol
appears adjacent to a gas type, as illustrated in Fig. 4-8, then
the sensor requires replacement or an electrical fault exists.
Return instrument to an approved Service / Repair facility.
Fig. 4-8 Sensor Fault
2) If a “ZERO FAULT” warning and a flashing spanner
symbol appear, alternating with a zero LEL reading as
illustrated in Fig. 4-9, apply test gas for two minutes to allow
the display to return to zero then switch instrument OFF and
ON again. If fault remains, return instrument to a GMI
approved Service / Repair facility.

GMI PS200 series Specifications

General

Display	LCD
Alarm Type	Audible, visual, and vibration alarms
Resolution	Depends on the gas being detected
Accuracy	Varies depending on the gas and sensor. Consult the specific sensor datasheet.
Operating Temperature	-20°C to +50°C
Power Supply	Rechargeable Li-ion battery
Pump Type	Built-in sample pump