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Adjustment to minimum flow / flow standstill (LO-Teach)
The unit measures the current flow and sets this value as the minimum dis-
play value for the LED display. In normal operation the first green LED (LED 0)
flashes when the flow falls below this value (or when it comes to a standstill).
NOTE: The LO-Teach operation may only be carried out after the HI-Teach
operation.
1
Press the Learn/Set
button for 10s,
release when the LEDs light
step by step from right to left.
You can also adjust the unit
via the programming wire:
Apply the operating voltage
(+UB) to pin 2 (P) for
min. 11s / max. 15s.
2
Set the minimum flow or flow standstill;
keep the flow constant.
LO
0
1
2
3
4
The green LEDs on the right and on
the left flash;
LO
0
1
2
3
4
after 5s the LEDs light step by step
from left to right,
LO
0
1
2
3
4
after a further 5s from right to left.
LO
0
1
2
3
4
LED 0 flashes (for approx. 15s).
LO
0
1
2
3
4
Then the unit stores the current
flow as minimum flow and passes
into the operating mode.
HI
5
6
7
8
9
HI
5
6
7
8
9
HI
5
6
7
8 9
HI
5
6
7
8
9
HI
5
6
7
8
9
27
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