Troubleshooting:
•
If any of the following errors are present, calibration data was corrupted and this
procedure needs to be repeated.
◦
Standalone Detectors: 9997
◦
BMS Transmitters: 0x0008
◦
Control Panel Remotes: Sensor # Calibration Invalid
•
If achieving stable voltages is not possible, it may be necessary to replace the sensor
and/or the sensor board.
◦
Once the useful lifespan of the sensor is exceeded, the sensor can no longer be
recalibrated. Both carbon monoxide and nitrogen dioxide sensors have an expected
lifespan of up to 10 years; however, this period can be reduced with increased
exposure to the target gas or sensor poisons. Replacing the sensor should yield
more stable voltages.
◦
Over time, control electronics can degrade or suffer damage. If this is the case,
replacing the sensor board should yield more stable voltages.
FG01
Rev 1.2 – January 10, 2022
3
COM (TP3)
Calibration Jumpers
[ZERO]
[SPAN]
AN OUT (TP7)
R2
R1
