Heraeus HS 9 Service Manual page 105

Retrofit Kit Instructions
9. Assembly flow transducer:
Drill a hole (Diameter of hole
(Pos. 3) in the middle of the frame [1] according to drawing
HS 9 50067608
HS12 50066318
HS15 50067725
HS18 50067325
and additional drill two threads M4 for holding.
Saw and cut the neck of mounting flange.
Insert flow transducer (slit in the direction of the air flow ! ), screw on with raised countersunk head
screw (Pos. 4) and seal the joint between work chamber and rear wall canal with sealant.
Drill a one hole for the cabel duct of the flow transducer
into the front of the unit between motor and the other
cable ducts, diameter of hole
Insert rubber grommet (Pos. 5) and seal all with sealant.
Wire the flow transducer with new wire set
(Pos. 17) according to wiring diagramm 50065658 - page 6, (Pos. 1)
and mount it with cable support (Pos. 14) and
cable tie (Pos.15).
Connection of the screw terminal:
Valid: 12.2001
Digital display air flow velocity HERAsafe HS/HSP
25 mm) for the flow transducer
(Pos.18)
(Pos. 19)
(Pos. 20)
(Pos. 21),
16 mm.
50072901
hole 25 mm
in the middle
16 mm
5