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ABB ProcessMaster FEM631 - Page 97

ABB ProcessMaster FEM631
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97
FEM630 | ELECTROMAGNETIC FLOWMETER | OI/FEM630-EN REV. A
Menu / parameter Description
Diagnostics / ...Diagnosis Control / ...Diagnosis Tfe
Tfe On/Off
Activate the Partial Filling Detection function.
Note
This feature is available if the sensor is equipped with a Partial Filling Detector (optional).

protection for


Start Tfe Adjust
The partial filling detection must be set in accordance with the conditions on-site.
Start the automatic adjustment of the Partial Filling Detection function.
Note
Prior to starting, make sure that:
There is no flow through the sensor (close valves, shut-off devices etc.).
The flowmeter sensor is completely filled with the medium to be measured.
Manual Tfe Adjust Manual setting of the Partial Filling Detection function.
Tfe Threshold
Manual fine adjustment of the switching threshold. The switching threshold is set automatically during
automatic adjustment. If the current value should exceed the defined switching threshold, a message will
appear on the display and an alarm will be triggered through the digital output, if appropriately configured.
Actual Tfe Value
Output of the TFE detection value. If the value should exceed the switching threshold, a message will appear
on the display and an alarm will be triggered through the digital output, if appropriately configured.
Diagnostics / ...Diagnosis Control / ...Empty Pipe Detector
Empty Pipe Detector

A completely filled meter tube is essential for an accurate measurement. The ‘Empty Tube Detection’ function
detects an empty meter tube..
In case of an alarm, the current output records the determined status in the menu ‘Input/Output / ...Curr.Out

Adjust EP
The empty tube detection function must be set in accordance with the conditions on-site. The switching
threshold is set automatically during automatic adjustment.
Start the automatic adjustment of the Empty Tube Detection function.
Manual Adjust EP F.
Manual set the empty tube detection function.
The value must be adapted such that the frequency for the empty tube detection (Detector EP Value) is almost

Note
Before starting the (manual / automatic) adjustment, make sure that:
There is no flow through the sensor (close valves, shut-off devices etc.).
The flowmeter sensor is completely filled with the medium to be measured
Threshold
Set the switching threshold for the empty tube detection.
The switching threshold is set automatically during automatic adjustment. The switching threshold can be
changed for manual fine adjustment.
Detector EP Value
Frequency display for empty tube detection. If the current value should exceed the defined switching
threshold, a message will appear on the display and an alarm will be triggered through the digital output, if
appropriately configured.
8 ...Operation
...Parameter descriptions

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