Ametek Thermox WDG Insitu, Руководство пользователя

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4-20 | Thermox Series 2000 WDG Insitu Analyzer
Overview of Alarm Functions
ALARM NUMBER
Define whether Alarm 3 activates based on oxygen levels, the start of a calibration, or
the start of a verification ( Select Function ). Alarm 4 is set to activate based on levels of
oxygen.
Select Function Alarm Configure Relay Configure
Alarm 3 % O
2
Cal Start
Verify Start
Cal/Verify Start
High O
2
Alarm
Low O
2
Alarm
(only selectable if Select
function is oxygen)
Energize on alarm
De-energize on alarm
Alarm 4 Not selectable
(% O2 only)
High O
2
Alarm
Low O
2
Alarm
Alarm Set Points
For oxygen alarms, these values depend on the Alarm
Configure menu option for whether they are high or low
alarms.
Exception Log
The exception log provides a history of events, such as
system or error messages, alarm conditions, and the
start of calibrations or verifications.
Alarms 1 and 2 are reserved for Watchdog and Service alarms and are not software-
selectable. They always de-energize on alarm (FAIL SAFE).
Alarm Set Points
Set alarm limits. Use the Alarm Configure menu option to define whether
these limits represent high or low alarms, although certain restrictions
apply (See the “Alarm Configure” section later in this chapter for further
help on defining high/low alarms).
Oxygen alarm is disabled during calibration cycles.
If an alarm triggers, an up or down arrow (depending on whether a high
or low alarm) will appear to the right of the process reading on the dis-
play. For example, if the first display line is showing % O
2
values, and a
high alarm occurs, an up arrow will appear to the right of the O
2
value. If,
for example, you set Alarm 3 for a high O
2
alarm and Alarm 4 for a high/
high O
2
alarm, and the O
2
value exceeds both the high and high/high
alarm set points, two up arrows will appear next to the O
2
value on the
display.
NOTE
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