Continuous level measuring system
NB 4000
Technical information / Instruction manual
page G
Mounting with aiming flange
Mounting with aiming
flange
The aiming flange allows to mount the unit directly on the
roof of a silo without the need of a socket.
When working on a silo roof, take precautions according to
the valid safety regulations to avoid, that persons can fall
down.
1. Find the right mounting position (see page before).
To ensure a proper sealing of the rubber on a shaped silo
roof, the distance "R" from the center of the silo to the
mounting position must be >500mm (19.7").
2. Mark ten drilling holes "A" and the cutaway "B" with a
marker on the silo roof. Use the attached template.
While doing the next steps 3. and 4., ensure that swarfs or
any parts can not fall into the silo.
3. Drill ten holes "A" with a 9,5mm driller.
Use a cut-off grinder to grind out the shape "B". Before
doing this, drill a bigger hole in the middle of "B", where you
can hold the cutted plate to avoid that it falls into the silo
when it gets loose.
4. Insert the clamping plate from inside the silo and fix with
two screws "C"
5. Apply the rubber sealing from outside over the shafts.
Take care that the shaped side faces to the (shaped) silo
roof and the knobs faces upwards..
If the sealing is fixed in the wrong direction, the sealing may
not be water and dust tight.
6. Mount the NB 4000 unit.
Fix equally and crosswise all the eight nuts "D", first with a
low torque, increase up to a torque of 2Nm
7. Adjust the unit to a vertical position (deviation of max. 2°)
by using a water level. Fix two screws "E" with a torque of
15Nm.
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NB 4000
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