Ecom j2kn pro - Instrument Adjustments and Settings; Sensor Re-Calibration Procedure; Gas Concentration Unit Selection

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15. How to Change Sensors
15.1 How to Change O2 Sensor
Step 1:
Use a T-10
torx wrench
to remove
screws from
O2/CO cover
plate
Step 2:
The O2
sensor is
attached to
2 wires,
located
below the
CO sensor
Step 3:
Disconnect
the lead
wires and
unscrew
counter
clockwise
until loose,
then pull
directly out
Step 4:
Install new
O2 sensor
by screwing
clockwise
until locked
& reconnect
wires
Improper installation voids warranty!
Please mark connector when removing old
sensor and insert new sensor into correct
connector to prevent destruction of the
sensor and main board.
Step 5: Replace O2/CO cover plate and tighten screws with a T-10 torx
wrench
Step 6: Turn on analyzer and select Gas Analysis to start self-calibration
of O2 sensor to 20.9% in ambient air (must be in fresh air)