ENMET OMNI-4000 - Manual (Page 60)

ENMET Corporation OMNI-4000 S/N 6705 and above
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3.8 Replacing a Toxic Gas Sensor
This procedure is used for the installation of a new toxic gas sensor.
Equipment Required
‰ A small phillips head screwdriver
‰ A new toxic gas sensor
Replacing the Toxic Gas Sensor
• Use the screwdriver to remove the cover which contains the sensor openings
• Remove the old toxic gas sensor
• Install the new toxic gas 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
Possible locations of toxic sensors are channels 2, 3, and 4. See Figure 3-14.
Figure 3-14: Acceptable Locations of Oxygen and Toxic Sensors
Checking the Toxic Gas Sensor
In the interests of safety, check the toxic gas sensor by applying a calibration gas of known contents. To do this:
• Turn the OMNI-4000 on by pressing the ON/OFF switch
• Using the calibration cover, apply the gas as during a calibration
• Check that the concentration of the calibration gas from the cylinder corresponds to the display for the appropriate
channel
• Remove the gas and the calibration cover
Explosive Gas
Sensor
CO2 Sensor
(if needed)
Toxic Gas or
Oxygen Sensor
Locations