ENMET ISA-40 - Manual (Page 4)

ENMET Corporation ISA-40 Oxygen Monitor
2
2.0 Features 2.0 Features
See figure 1 for location of features
Feature Description
Meter A Oxygen (O2) concentration meter. The scale is marked in percent by volume O2.
Audio Alarm(Horn) Audio alarm (2900 Hz ,95 dB at 2 ft.). The audio alarm is on when the unit is in alarm.
Gain Potentiometer Covered potentiometer to adjust the oxygen gain, in clean air.
Visual Alarms Lamp, Red: Visual alarm (steady light). When this light is on, power to the unit is on and
the unit is in high alarm.
Lamp, Green: When this light is on, the unit is operating and is not in alarm. When this
light is off, the unit is in alarm OR power to the unit has been interrupted.
Switch Audio Alarm Switch to disable audio alarm, horn on /off.
Indicator Audio Alarm Light, Amber: When this light is on the audio alarm is disabled.
Relay Reset Button Push button to release latching relay.
Figure 1: ISA-40 Control Unit Exterior
1
2
3
4
Relay
Reset
O2
Gain
O2
Gain
O2
Gain
O2
Gain
Audio Alarm
(Horn)
Relay Reset
Button
Channel 1
Alarm Lamp (red)
Channel 1
Power Lamp (green)
Channel 1
Meter
Channel 1 Gain
Potentiometer
Cover Screws
4 places
O
N
O
F
F
H
O
R
N
Switch
Audio Alarm
Indicator
Audio Alarm