Ametek Dycor CG1000-RTP, Руководство пользователя

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4-14 | Dycor CG1000-RTP Oxygen Analyzer
Overview of Alarm Functions
•
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.
• Alarm 4 is always an oxygen alarm.
•
The Relay Configure menu option applies to all alarms except for the watch-
dog and service alarms, which always de-energize on alarm (fail safe).
Function
Select
Function
Alarm Configure Relay Configure
Alarm 3
o
2
Flow
in calibration
in verify
High o
2
alarm
low o
2
alarm
High and low flow
(Not selectable if Select Function is in calibrate
or verify)
Energize on alarm
de-energize on alarm
Disabled during calibration cycle and during system alarm condition.
Alarm 4
not selectable
(%o
2
only)
High o
2
alarm
low o
2
alarm
Disabled during calibration cycle and during system alarm condition.
Alarm Set Points
Set alarm limits. Define whether these limits represent high or low alarms us -
ing the Alarm Configure menu option.
Certain restrictions may apply (see the Alarm Configure section). Alarm 3
can be used to define both a high and low flow limit, so if flow is either too
high or too low, the Alarm 3 will trigger.
If an alarm triggers, an up or down arrow will appear to the right of the
process reading on the display. 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 Alarm 3 and Alarm 4 set points, two up arrows will appear next
to the O
2
value on the display.