NSV
DT0335 Page 5
6. Mechanical Connection
Before installation:
Remove all packing materials and transport retainers and ensure that no
such materials remain in the device.
Make sure that the permitted max. operational pressure and temperature
limits are not exceeded (see chapter 10 Technical Information)
The units may not be installed at a location within an inductive field.
If possible, check directly after mechanical installation whether the
connection thread to the pipe is fully sealed.
INSTALLATION OF THE NSV VIBRATION LEVEL MONITOR
The NSV series vibration level monitor is physically connected with a 1 ½” male
thread. For installation you should use the hexagonal adaptor (60 mm spacing) of
a suitable wrench.
THE FOLLOWING MUST BE OBSERVED UNDER ALL CIRCUMSTANCES:
When the bulk material container is being filled, the NSV level monitor
must not come into contact with the inflowing medium.
If this is however not possible, the vibrating fork must be fitted with a
suitable protective covering.
Make sure that the fork is always positioned correctly inside the bulk
container and that no bulk material deposit is formed on it, since this can
result in incorrect readings. If the NSV level monitor is built in laterally you
must ensure that the markings on the adaptor are vertical in relation to the
side of the container.
When the NSV vibration level monitor is installed vertically a minimum
distance must be maintained between the fork and the container wall
otherwise this area could be filled with a deposit of the bulk material.
Whenever possible the NSV level monitor should be fitted with a slight
downward inclination. This prevents bulk material sticking to the vibrating
fork when the container is being emptied.
The level monitor should also be installed in such a position that there are
no parts in its immediate vicinity that could trigger vibrations in the inside of
the container, since this can also lead to incorrect readings or damage.
For correct positioning the connection head (resp. cable bushing) is 350º
rotatable.
