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5 Initial operation
4. Align to the pipeline and note the flow direction (see arrow).
Alignment is not made on PBCOver units with alignment protec-
tion.
5. After adjusting the sensor, tighten the adjustment screw clock-
wise by hand.
If the sensor is inserted too deep (points 1 to 3 only), or has to be
removed for cleaning, inspection or recalibration:
1. Unscrew the sensor adjustment screw (anti-clockwise).
2. Hold the sensor in place.
3. Press the sensor adjustment screw downwards lightly against
the spring force until the reverse running protection yields.
4. Pull the sensor back to the end stop.
5. Close the measurement fitting or tap, loosen the PBCOver us-
ing the 36 mm wrench and counterlock the fitting.
The sensor is positioned in the centre of the pipe.
22
Sample formula for DN 100 / stain-
less steel:
y = top edge of reverse running pro-
tection when closed
h = height of edge of measurement
fitting or existing tap up to outer wall
of pipe (e.g. 95 mm fitting)
s = 3.6 mm
l = D/2 + h [mm] + s [mm] + 120 mm
54 + 95
≈ 275 mm
+ 3.6
+ 120 mm
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