Enmet OMNI-4000 Manual de usuario descargar pdf (Pagina 60)

ENMET Corporation OMNI-4000 S/N 6705 and above

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

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 71 72

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Enmet OMNI-4000 Manual de usuario Pagina 60