SWR ENGINEERING SolidFlow Operating Instructions Manual page 6

Operating Instructions
Weld the sensor accommodation on to the duct.
•
Drill the Ø 20 mm hole into the duct. Please use your own drill as there are different shafts available.
•
Take care that the hole is in line and rectangular to the surface to avoid trouble by inserting the sensor.
Warning!
After drilling you have to check, if there is a burr resulted at the drilling walls from the drilling. If so, this
•
burr in the duct must be removed with an appropriate tool. If this burr is not removed, a calibration of
the sensor is not possible!
If the sensor is not installed immediately, the dummy plug must be put in until the sensor will be
•
installed (see fig. 5). Use a 32 mm wrench for tightening the union nut.
Distance washer 1 mm
O-ring-type sealing
ring 36 x 3
Sensor accommodation
q
Fig. 5: Installation of the sensor accommodation and the dummy plug.
•
It' s important that the sensor does not intrude into the duct because otherwise the front end of the
•
sensor will be worn by abrasion. If necessary the wall thickness must be checked with a depth gauge.
Then position the circlip in the complying slot. The sensor may be submerged into the duct wall by up to
1 mm without creating an error of measurement.
Wall thickness (mm)
3,0
4,0
5,5
6,5
8,0
9,0
10,5
11,5
13,0
14,0
Now the sensor is put into the sensor accommodation and screwed with the union nut according to
•
figure 6a.
Union nut
Circlips for shafts
Dummy plug
Circlip for shafts position
1
1
2
2
3
3
4
4
5
5
Fig. 5: Installation of the sensor
accommodation and the dummy plug.
Number of distance washers
2
1
2
1
2
1
2
1
2
1
6