Enmet ISA-44-RAL-OD Manual de usuario descargar pdf (Pagina 8)

ENMET Corporation ISA-44RAL-OD / ISA-44RAH-OD

3.0 Features / Definition of Parts3.0 Features / Definition of Parts

3.1 Electronics Control Unit

3.1.1 Carbon Monoxide Detection Channel

Refer to Figure 1

FEATURE DESCRIPTION

POWER LIGHT (GREEN) Light on: Channel operating

Light off: Alarm condition or power interrupted.

ALARM LIGHTS Visual alarms (steady lights).

AMBER: unit in low level alarm.

RED: unit in high level alarm.

AUDIO ALARM Audio alarm: activates when high alarm level is exceeded.

METER A CO concentration meter. The scale is marked in parts per million (ppm) CO.

This is a non-linear device. Do Not Infer Exact Readings From Unmarked

Regions Of The Meter Scale.

OPERATION SWITCH* A rotary switch.

Operate: normal MOS sensor operation

Purge: Purges (cleans) MOS sensor by heating it to very high temperatures.

Sensor inoperative as a CO detector.

Horn Off: Deactivates audio alarm during calibration and maintenance.

CABLE Oiltight. Connects the sample head assembly to the control unit.

3.1.2 Oxygen Detection Channel

Refer to Figure 1

FEATURE DESCRIPTION

POWER LIGHT (GREEN) Light on: channel operating.

Light off: alarm condition or power interrupted.

ALARM LIGHT (AMBER) Visual alarm (steady light).

Light on: channel in alarm.

AUDIO ALARM Audio alarm; activates when oxygen channel goes into alarm (amber light).

METER Oxygen concentration meter. The scale is marked in % oxygen. The oxygen

meter scale is linear - the points on the meter accurately correspond with the

oxygen concentration in the monitored air

OXYGEN GAIN ADJUST Rotary component which adjusts the meter reading during calibration, testing or

sensor replacement.

OPERATION SWITCH* Same as for CO channel.

CABLE Same as for CO channel.

* Older equipment has separate PURGE and HORN OFF switches.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 27 28

Sin comentarios

Enmet ISA-44-RAL-OD Manual de usuario Pagina 8