Definition Of Requested Value; Adjustment To Existing Flow - IFM Electronic efector300 SBU3 Operating Instructions Manual

5.1 Definition of requested value

► Loosen the lock nut.
► Turn the knurl until the requested value just becomes visible on the setting
scale. → Example in figure 2: requested value = 10 l/min.
► Tighten the lock nut.

5.2 Adjustment to existing flow

► Let the normal flow circulate in the installation.
► Loosen the lock nut.
► Set the switch point with the knurl.
- If the LED lights before setting: turn the knurl in the direction [+] until the LED
goes out. Then turn in the opposite direction [-] until the LED lights.
- If the LED does not light before setting: turn the knurl in the direction [-] until
the LED lights.
► Tighten the lock nut.
Correlation between number of the turns of the knurl (SET) and switch point in l/
min (typical course of the measurement curves):
Q [l/min]
100
90
80
70
60
50
40
30
20
10
0
1 2
The diagram shows the typical course of the measurement curves for coolants at 20 °C.
3 4 5 6 7 8 9 10 11 12 13 14 15
UK
SBU325
SBU324
SBU323
SET
5