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ENMET OMNI-4000 User Manual

Page 64

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ENMET Corporation

OMNI-4000 S/N 6705 and above

58

Measurements:

Continuous for all operational sensors

Sensors; Electrochemical:

Interchangeable preset units

Automatic recognition by device (EEPROM)

Display:

Alphanumeric LCD, 2 lines of 16 characters

Plain messages

Display Backlight:

Timed

Optional Switchover of Explosive Gas Detection Ranges:

Automatic for "% Gas" scale to "% Volume" scale; must have an oxygen sensor installed

Sensor Failure

Identification by individual indicator lamps

Plain language messages

Corresponding display "frozen." Other channels operational

Continuous audio and general visual alarm

NI-CAD Battery Failure

Plain language display

Continuous audio and general visual alarm

Operational Checks

Automatic calibration on request (optional)

Self-test on start-up

Audio and visual signals every 30 seconds

Readings displayed plainly

Alarms

Explosive Gas: One instantaneous threshold adjustable over the 0-50% LEL range.

Oxygen: Two instantaneous thresholds adjustable over the full measurement scale of the

sensor (oxygen depletion and abundance)

Toxic (per sensor):

ƒ

One instantaneous alarm threshold adjustable over the full measurement scale

ƒ

One TWA threshold

ƒ

One STEL threshold