Calibration and Maintenance Fyrite
InTech
Manual
52 0024-9486 Rev 2
5.4.3. O
2
Sensor Replacement Procedure
Follow the procedure below for O
2
sensors.
Step O
2
Sensor Replacement
1 Remove battery door and connector
tubing from both sensors.
2 Pull O
2
sensor from its socket.
3 Remove the O
2
cap.
4 Properly dispose of the old sensor.
5 Note 3-digit date code on new sensor.
6 Engage the nub on the new sensor
within the slot on the cap's side and
twist to secure the cap and sensor
together.
7 Install the cap and sensor unit by:
•
Aligning the ribs on the sides of
the sensor with the
corresponding shape in the base.
•
Inserting the pins into the
connectors in the base.
8 Reattach tubing. Close battery door. Turn on instrument.
9 After warm-up completes, enter the 3-digit date code (see page 35).
5.4.4. CO Sensor Replacement Procedure
Follow the procedure below for CO sensor replacement.
Step CO Sensor Replacement Procedure
1 Remove battery door and the connector
tubing from the CO sensor.
2 Remove CO
clockwise.
3 Gently pull CO sensor out of its socket.
4 Properly dispose of the old CO sensor.
5 Plug new CO sensor into its socket.
6 Install the CO cap by aligning it toward