RKI Instruments GX-86A - Manual (Page 32)

Model GX-86A Instruction Manual
RKI Instruments, Inc. Page 31
CO sensor with filter; do not use the filter with other other sensors.
5. Insert a new sensor and turn clockwise. Be sure to use the correct
socket for the sensor type; sensors are not interchangeable
between sockets.
6. Reinstall the cover.
7. Turn on the instrument and verify the display is normal.
8. Calibrate the detection circuit to work correctly with the new sen-
sor.
CO Filter
CO sensors are equipped with an activated carbon filter disk that
removes H
2
S and most hydrocarbons to limit interference with the CO
measurement.
Replace the filter when CO readings become suspect (e.g., CO circuit
calibrates properly, but shows response in a known CO-free
environment), or when replacing sensor, whichever comes first. See
Figure 4.
Rubber Collar
Filter (CO only)
CO Sensor
Sensor
Figure 4. Sensor Installation (CO only)
Block