Yokogawa Low Concentration (ppm) Zirconia Oxygen Analyzer OX400 - Manual (Page 59)

<7. Inspection and Maintenance>
7-6
IM 11M10B01-01E
4) Insert the ring 1 and holding plate
4 in this order into the sensor. Hold the sensor with
fingers and rotate the joint 2 right and left to push it into the sensor slowly.
Lead wire connector
3
Heater
Sensor
1
4
2
5) Rotate and tighten the ring 1 into the joint 2 . Secure the holding plate 4 with two screws
(7).
Connect the lead wire connector of the sensor to the PCB board.
Lead wire connector
Heater
Sensor
7
Sensor constant tag
3 1
4
2
6) When the installation of the sensor is finished, take a note of the sensor constant on the sensor
constant tag attached to the sensor lead wire, and then close the cover.
7) Turn on the power, and when “HEAt” appears and countdown starts, enter sensor constant
“SEnS.” As for how to enter it, see 6.1.7 “Setting Sensor Constant.”
Be sure to perform calibration after replacing the sensor.
7.4 How to Replace Activated Carbon Filter
Activated charcoal filter will be provided when “/A” option is specified. Filter should be installed
between gas sampling line and gas inlet of OX400. Filter has a life time and need to replace
periodically, its replacement interval vary depending on the application. As for the part number, see
CMPL at the end of this manual.