Alarm Output - Microedge Instruments iLog Series User Manual

Alarm1 and A2/EXT can be associated with alarm state and/or excitation control. Please refer
to Alarm Output and Excitation Control for details.

Alarm Output

The logger will be in a state of alarm if ALL of the following conditions are met:
1. Channel alarms are enabled.
2. The logger is logging the data.
3. Current sampled reading is beyond low or high alarm thresholds.
4. Alarm-On Delay counter has moved down to zero.
When the logger is in alarm state, Alarm1 and/or A2/E terminal strips can be configured by
SiteView to be activated certain time after an alarm was triggered. The delay time selections
are: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 minutes.
The following alarm output combinations can be set by SiteView:
Alarm1 & A2/E Options
Disable any output -> Alarm1 and A2/EXT
High alarm -> A2/EXT only
Low alarm -> Alarm1 only
High alarm -> A2/EXT and low alarm -> Alarm1
iLog Data Loggers User's Manual
Description
No output connects to Alarm1 and
A2/E terminals.
High-alarm state controls A2/EXT
terminal.
Low-alarm state controls Alarm1
terminal.
High-alarm state controls A2/EXT
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