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Single Flow Alarm:
Checking this option opens up input boxes for
Threshold, Hysteresis and Invert.
•
Set the Threshold to the flow value you require the
transistor to operate.
•
The logic of operation can be adjusted with the
Invert check box.
Hysteresis (%): This is used to prevent "fluttering" of
the alarm signal when flow is around the threshold
level.
The % value is set around the Threshold value.
For example: Threshold set at 1.0 and Hysteresis at
20%. The PIN will turn ON at 1.1 and off at 0.9.
NOTE:
The Invert checkbox will reverse the action
of the alarm output.
For details for each PIN see the or hover mouse over the set point to see the action of the
output with the chosen settings.
Dual Flow Alarm:
Checking this will enable a range of flow to be entered. When the flow is outside/inside of this
range the alarm will be triggered.
For details for each PIN see the Alarm logic table or hover mouse over the set point to see the
action of the output with the chosen settings.
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®
The remaining settings in the input box are the
same as for Single Flow alarms.
•
The alarm will automatically activate and
reset in proportion to the user set Hysteresis
of the Threshold levels.
•
The Invert checkbox will reverse the action of
the alarm output. (See the Alarm Logic
Table).
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