DON-H
page 20
DON-H
01/0721
9.5.1
Re-assembly of DON-H05...DON-H10
The small flowmeters DON-H05 to DON-H10 have dimples on both housing parts
(1 and 4). The referencing dimples must be in alignment when reassembling. In
addition, with these small flow meters, only one oval gear is equipped with
magnets. The oval gear without magnet must be mounted on the ax
le
that
is closest to the dimple.
Both oval gears are correctly installed when they are at an angle of 90 ° to each
other. The oval gears must be able to rotate freely.
Check the correct fit and the friction between the ax
le
and the bearings by
slowly rotating the oval gears by hand.
Thereafter, the O-ring (3) is inserted into the groove of the measuring housing (1)
and both parts (1 and 4) are reassembled. It must be ensured that the markings
are in alignment with each other.
The screws (5) are inserted and tightened crosswise opposite one another.
Tighten the screws with a torque of 3.5 Nm. The alternating tightening procedure
is preferred for proper and even assembly.
If necessary, the pulse output board, the cover with the cable gland or the
attached electronics are installed. Make sure that the O-ring (8) is seated
correctly.
5
1
2
3
4
6
7
8
9
10
2
Optional
Assembly alignment
dimple
Summary of Contents for DON-05
Page 1: ...Operating Instructions for Oval Wheel Flowmeter High pressure Model DON H...
Page 9: ...DON H DON H 01 0721 page 9 Note The electronic option H0 is available with reed switch output...
Page 43: ...DON H DON H 01 0721 page 43 17 Statement of Conformity...
Page 44: ...DON H page 44 DON H 01 0721...
Page 45: ...DON H DON H 01 0721 page 45...
Page 46: ...DON H page 46 DON H 01 0721...
Page 47: ...DON H DON H 01 0721 page 47...
Page 48: ...DON H page 48 DON H 01 0721 18 State of safeness...
