Mounting Of The Clamp Fixture - HBM T10FS Mounting Instructions

T10FS
4. Install the two antenna segments' upper connecting screw so that the
antenna ring is closed. Also pay attention to the fan type lock washers.
5. Now fasten all antenna segment screw fastenings with a tightening torque
of 5 N⋅m.
6. Align antenna and rotor so that the antenna encloses the rotor coaxially.
Please observe the permissible alignment tolerances stated in the
specifications.
7. Now fasten the screw fitting of the stator housing.
8. Make sure that the opening in the lower part of the
antenna segments is clear of electrically conductive
foreign bodies.
CAUTION
To make sure that they function perfectly, the fan type lock washers
(A5.3 FST DIN 6798 ZN/galvanized) must be replaced after the antenna
screw fastening has been loosened three times.

4.6 Mounting of the clamp fixture

Depending on the operating conditions, the antenna ring may be excited to
vibrate. This effect is dependent on
• the speed
• the antenna diameter (depends in turn on the measuring range)
• the design of the machine base
To avoid vibrations, a clamp fixture is enclosed with the torque flange enabling
the antenna ring to be supported.
Fig. 4.5: Supporting the antenna ring
A0785 14.0 en
Support supplied by customer
Clamp fixture
Antenna ring
21
Opening
HBM