Endress+Hauser Flowphant T DTT31 Flowphant T DTT35 Operating Instructions Manual page 17

Flow switch
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Flowphant T DTT31, DTT35
6.2.2
Navigating the Calibration (CAL) function group
Variable limits for HIF (Learn High Flow) or LOWF (Learn Low Flow) can be set with the
' L earn Function' .
• HIF setting (Learn High Flow): Enter any flow rate between 70 to 100 % of the maximum
value in the process. The device then uses this value to automatically calculate the
corresponding 100 % value.
• LOWF setting (Learn Low Flow): Enter any flow rate between 0 to 20 % of the maximum
value in the process. The device then uses this value to automatically calculate the
corresponding 0 % value.
CAL
E
OUT
 11
Navigating the ' L earn' function taking the example of the Calibration (CAL) function group
B
Function selection
C
Selection of settings
1.
Select the "HIF" (Learn High Flow) or "LOWF" (Learn Low Flow) function with the E key.
2.
Select the "RUN" function with the + key; the Learn function is initialized.
3.
Select the flow rate with the + key, press for longer than 2 s.
4.
If "HIF" (Learn High Flow) is set, the upper flow rate (70 to 100 %) is selected. Enter the
current relative flow rate in increments of 1 % with the + or - key (factory setting 80 %).
5.
If "LOWF" (Learn Low Flow) is set, the lower flow rate (0 to 20 %) is selected. Enter the
current relative flow rate in increments of 1 %with the + or - key (factory setting 0).
6.
Select the "WAIT" function with the E key.
7.
Accept (' l earn' ) the current measured value after approx. 10 s- "OK" appears on the
display.
Endress+Hauser
B
1.
HIF
LOWF
> 2 s
2.
3.
80%
RUN
0%
7.
E
Operation options
C
E
4.
> 60 s
WAIT
5.
~ 10 s
OK
W432
6.
A0010787
17

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