F-901B Reference Manual
Page
11
of
15
Maintenance of the F-901B
Replacing the Ethylene (C2H4), Oxygen
(O₂) Sensor and
Potassium Permanganate Filter (KMnO4)
IMPORTANT
:
•
Power off device before you proceed
•
Make sure you have sufficient ESD (electrostatic discharge) protection
•
Follow the below steps carefully to ensure proper sensor installations
Step
2
: Apply even forces at both ends to
pull
the Filter Tube off connectors.
Step
4
:
Pull
C2H4 sensor off socket.
Keep sensor plugged into connector
until step 6
Step
3
: Unplug O2 sensor connector then
unscrew
sensor off socket
Keeping the connector on
Sensor Connectors
C2H4 sensor
O2 sensor
Filter Tube
Step
1
: Remove the F-901B top cover
Socket
