Under normal operating conditions, most sensors will lose their original
sensitivity after the expected operating life and eventually need to
be replaced. Each sensor has a non-volatile memory that has the
manufacturing and expiration dates, which appear during the warm-up
period or can be looked up in the diagnostic mode.
), combustible gas (LEL), hydrogen sulfide
S) and carbon monoxide (CO) sensors all have a 2-year warranty.
All other toxic sensors have a 1-year warranty.
The Oxygen and the LEL sensors have assigned sockets.
These are identified on the PCB. High bias toxic sensors should be
Refer to Special Bias Voltage for Toxic Sensors
Any toxic sensor can be installed in socket 2/B.
Replace the sensor when it fails to calibrate.
sensor(s), turn the monitor off
Using the sensor puller, remove the sensor
to be replaced by carefully pulling straight
Plug a new sensor into the empty socket.
Make sure the sensor pins are aligned with
the socket holes before firmly pushing the
Replace the monitor cover.
Turn on the power of the monitor and
the newly installed sensors should be
recognized. Let the monitor run for 15
minutes before calibration.
Some sensors, like NO and NH3, require up to 24 hours on-bias in the
monitor prior to calibration and use.
Refer to Techincal Note 114 Sensor
Specifications and Cross Sensitivities.
Calibrate all sensors prior to use!
To Next Page
Loading...
Need help?
General
