AMI Oxytrace QED
Program List and Explanations
A-96.250.531 / 300617 79
5.3 Relay Contacts
5.3.1 Alarm Relay: The alarm relay is used as cumulative error indicator.
Under normal operating conditions the contact is active.
The contact is inactive at:
Power loss
Detection of system faults like defective sensors or electronic
parts
High case temperature
Process values out of programmed ranges.
Program alarm levels for the following parameters:
Oxygen
Temperature
Sample Flow
Case Temperature high
Case Temperature low
5.3.1.1 Alarm oxygen
5.3.1.1.1
Alarm High: If the measured value rises above the alarm high value,
the alarm relay is activated and E001 is displayed in the message list.
Range: 0.00 ppb –20.00 ppm
5.3.1.1.25
Alarm Low: If the measured value falls below the alarm low value, the
alarm relay is activated and E002 is displayed in the message list.
Range: 0.00 ppb –20.00 ppm
5.3.1.1.35 Hysteresis: Within the hyst. range, the relay does not switch. This
prevents damage of relays contacts when the measured value fluc-
tuates around the alarm value.
Range. 0.00 ppb –20.00 ppm
5.3.1.1.45 Delay: Duration, the activation of the alarm relay is retarded after
the measuring value has risen above/fallen below the programmed
alarm.
Range: 0–28‘800 Sec
5.3.1.2 Sample Flow: Define at which sample flow a flow alarm should be
issued.
5.3.1.2.1 Flow Alarm: Program if the alarm relay should be activated if there
is a flow alarm. Choose between yes or no. The flow alarm will al-
ways be indicated in the display, pending error list, saved in the
message list and the logger.
Available values: Yes or no
NOTICE: Sufficient flow is essential for a correct measurement.
We recommend to program yes.
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