Ametek Thermox CEM O2/TM, User Manual

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4-28 | Thermox CEM O2/TM
Overview of Alarm Functions
Figure 4-7 provides an overview of how alarms can be set:

Alarms 1 and 2 are reserved for the watchdog alarm (Alarm 1) and the
service alarm (Alarm 2). These alarms are not software selectable.

The Select Function menu option applies only to Alarm 3.

The Relay Configure menu option applies to all alarms except for the
watchdog and service alarms, which always de-energize on alarm (fail
safe).
A
lARM NUM
b
ER
FUNCTION
*Select Function Alarm Configure Relay Configure
Alarm 3 % O
2
Cal Start
Verify Start
High O
2
Alarm
Low O
2
Alarm
(Only selectable if
Select Function is
oxygen)
(Disabled during
calibration cycle and
during system alarm
condition)
Energize on alarm
De-energize on alarm
Alarm 4 O
2
Hydrocarbon Upset
(Selectable through
Setup/Sensor Con-
fig. menu option)
High O
2
Alarm
Low O
2
Alarm
(Disabled during
calibration cycle and
during system alarm
condition)
* Note: Alarms 1 and 2 are reserved for the watchdog timer and service alarms and are
not software-selectable.
Figure 4-7.
Alarm Key overview.