ENMET OMNI-4000 - Manual (Page 56)

ENMET Corporation OMNI-4000 S/N 6705 and above
50
Setting the Zero
The display shows alternately:
• Press ENTER to display the zero value. The display shows, for example:
• Set the zero point using the zero potentiometer; see Figure 3-11. Turn the potentiometer clockwise to increase the
displayed value.
The display must show a value close to zero:
In case of problems with the setting, replace the
sensor.
• Press ENTER when the smallest possible value
has been obtained.
Setting the Sensitivity
Preparing the Equipment:
• Attach the calibration cover; see Figure 3-12.
• Connect the calibration gas cylinder to the
calibration cover using the vinyl hose.
Figure 3-11: Location of Explosive Gas
Channel Zero Potentiometer
Figure 3.12: Calibration Gas Equipment Arrangement
Please wait for
stabilization
Then set
zero
Zero
5%LEL CH4
Zero
10.0% CH4
Gas Cylinder
Regulator
Hose
Calibration
cover
Zero Potentiometer