DTT31, DTT35
Operation
Hauser
15
5.1.3
Navigating the 'Learn' switch point (SPL)
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Fig. 14: Navigating the 'Learn' switch point
B Select function
m
SPL ('Learn' switch point), optional SPL2 ('Learn' switch point 2) with the E key
C Select settings
n
Select the "RUN" function with the + key, 'Learn' function is initialized
o
Select the "WAIT" function with the + key, press for longer than 2 s
p
Accept ('Learn') the current measured value after approx. 10 s - "OK" appears on the display
q
Or: The message "W432" or "NOK" appears on the display after 60 s
– W432: A sufficiently stable flow rate was not detected during the learning process. The system takes an
average of the 10 values last measured during the learning process.
– NOK: The switch point determined is under 5% of the measuring range and cannot be accepted as the
switch point must be a min. of 5% greater than the switch-back point (RSP).
r
Return to the OUT function group (Home position) with the E key
!
Note!
The device is still operative if message "W432" or "NOK" appears. However, large deviations at
the switch point may result. Recommendation: Repeat 'Learn' process (points 1 to 4) until "OK"
appears on the display.
