ENMET OMNI-4000 - Manual (Page 59)

OMNI-4000 S/N 6705 and above ENMET Corporation
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3.7 Replacing the Oxygen Sensor
This procedure is used when a new oxygen sensor is installed.
Equipment Required
‰ A small phillips head screwdriver
‰ A new oxygen sensor
Replacing the Oxygen Sensor
• Use the screwdriver to remove the cover which contains the sensor openings. See Figure 3-14
• Remove the old oxygen sensor
• Install the new sensor. The connector ensures a correct fitting. Be careful not to damage the male part of the
connector.
• Put the cover protecting the sensors back into place
Figure 3-14: Acceptable Locations of Oxygen and Toxic Sensors
Possible locations of the oxygen sensor are channels 2, 3, and 4. See Figure 3-14.
Checking the Oxygen Sensor
In the interests of safety, check the sensor by:
• Pressing the ON/OFF switch
• Checking that the displayed reading is 20.9%, in a normally ventilated environment. If it is not, attempt on auto-
zero or calibration. If this doesn't work, replace the sensor.
Explosive Gas
Sensor
CO2 Sensor
(if needed)
Toxic Gas or
Oxygen Sensor
Locations