Enmet OMNI-4000 Manual do Utilizador descarregar pdf (Página 23)

OMNI-4000 S/N 6705 and above ENMET Corporation

2.1.4 Use the OMNI-4000 as a Hand-Held or Stationary Beacon

The location of the instrument may be changed to detect various gases. When used as a stationary beacon, the OMNI-

4000 should be vertical with the battery pack acting as the base. See Figure 2-3. Depending on the type of gas to be

detected or liable to be present, the device is located:

• At ground level for heavy gases, such as H

• At mid-height (approximately 1.5 meter) or at the

outlet of an air vent for the general detection of

gases and the monitoring of the oxygen and CO

• At height for the detection of light gases, such as

methane, hydrogen, or ammonia

Figure 2-3: Position of OMNI-4000 in

Stationary Beacon Mode

Although there is an audio alarm, it is essential that the operator must be able to see the general alarm indicator lamp in

a noisy environment. See Figure 2-4. There is an earphone socket on the device.

Figure 2-4: Location of General Alarm Light

2.2 Starting Up

There is a choice of three procedures when the device is turned on:

• A standard procedure, suitable for most cases

• A procedure enabling the choice of the reference explosive gas, useful when searching for a known specific

explosive gas

• A procedure known as "self-adjustment" which allows the automatic reset of the explosive gas sensor and the

toxic gas sensors to zero and the setting of the oxygen sensor to 20.9%. This procedure must be used regularly.

Battery

Pack

General

larm Li

General Alarm Light

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Enmet OMNI-4000 Manual do Utilizador Página 23