ENMET OMNI-4000 - Manual (Page 49)

OMNI-4000 S/N 6705 and above ENMET Corporation
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3.5 Selecting the Channel for Calibration
There is a channel for each sensor. Channel 1 is reserved for the explosive gas sensor. If a CO2 smart block is used, it
is installed in channel 2.
• To change the channel, press the MENU switch
• To confirm the choice and proceed with the calibration of the displayed channel, press the ENTER switch
3.5.1 Calibration of the Explosive Gas Channel
‰ The calibration cover
‰ A vinyl hose, approximately 1 meter long
‰ A cylinder of calibration gas of known content, 20%LEL methane, for example
Preparing the OMNI-4000
• Attach the calibration cover,
• Connect the calibration gas cylinder to the injection cover with the vinyl hose; See Figure 3-6
• The channel has been selected. If not, refer to the "Selecting the Channel for Calibration" paragraph, above.
Figure 3-6: Calibration Gas Equipment Arrangement
Calibration
cover
Regulator
Gas Cylinder