Enmet OMNI-4000 Manual do Utilizador descarregar pdf (Página 13)

OMNI-4000 S/N 6705 and above ENMET Corporation

Type of gas – unit of measurement, showing the alternation information displayed to the operator.

For example: The values for the concentration of methane gas

(0% LEL CH

), of CO (10 ppm CO), of NO

(0.0 ppm NO

example: of oxygen (20.9% O

) are clearly visible.

Figure 1-6: Example of Alternating Display

1.6.1 Enabled and Disabled Channels

The enabled channels and those disabled, either by programming or because a sensor is not installed in a channel, are

clearly displayed, as in the following example:

The top section of Figure 1-7 shows an OMNI-4000 with an explosive gas sensor installed; the other three channels are

either disabled or without sensors. The bottom section of Figure 1-7 shows an OMNI-4000 with three toxic gas sensors

installed, and with the explosive gas channel disabled or without a sensor.

Figure 1-7: Examples of Display with Disabled Channels

1.6.2 Memorized Readings

When in use the OMNI-4000 continually stores the readings. These can then be displayed later as histograms of the stored

readings. Data obtained during operations is stored when the device is turned off.

1.7 Alarms

These are both visual (indicator lamps and display) and audible alarms. See Figure 1-8.

Figure 1-8: Alarm Light Locations

0 CH4 10 CO

0.0 NO2 20.9 O2

0 LEL 10 ppm

0.0 ppm 20.9 %

0 LEL Disabled

Disabled Disabled

Disabled 10 CO

0.0 NO2 0.0 SO2

lternating with

Channel 3

Alarm Light

General Alarm Light

Explosive Gas Over

Range Indicator Light

Channel 1 Explosive Gas

Alarm Light

Channel 2

Alarm Light

Channel 4

Alarm Light

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 71 72

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Enmet OMNI-4000 Manual do Utilizador Página 13