PureAire Monitoring Systems, Inc.
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How to wire the Remote Display Alarm Indicator
Identification of switches and controls
1.
Alarm Adjusting Switches
– These switches are used select the alarm level to be adjusted.
They are factory set at 19.5% for Alarm 1 and 18% for Alarm 2. (
Normally set at the factory
)
2.
Alarm Polarity Switches
– These switches are used to select when the alarms will activate.
For oxygen, the alarm switches are set for “Below”. If the readings go below an ambient level,
(i.e. 19.5%), then the internal horn and LED’s will activate. When used with our toxic gas
monitors, the polarity is set to “Above”. (
Normally set at the factory
)
3.
Range Auto Adjustment Switches
– These switches are used to adjust the zero and full scale
reading on the Remote Display Alarm Indicator. When sending a 4mA and 20mA signal from
