GE Bently Nevada 7200 Series Installation Manual page 15

14 mm Proximity Transducer System 7200 Series Installation Manual
include the isolation kits. For retrofit and conversion situations, Bently Nevada Corporation offers a
Proximitor Isolation Kit (BNC P/N 19094-01).
The probe is internally isolated to provide shield isolation at the probe end. The probe cable shield
is physically connected to the Proximitor case which is isolated with FEP insulation. Figure 2-4
shows the field wiring and shield grounding connections made to 7000, 7200, and 9000 Series
monitors.
The shield of each field wiring cable should be earth grounded at only one end; the other end should
not be grounded. All shields of field wiring connected to the monitors in the same rack should
connect to the same earth ground to avoid ground loops. If safety barriers are not used in the field
wiring, each monitor-end shield connects to the COM terminal of the respective rack signal module.
The signal module COM terminals are connected to ground by a user-installed jumper wire
connecting a specific remote reset terminal (common) to the earth ground. If safety barriers are
used, shields are connected to the earth ground bus, and the jumper wire between the remote reset
terminal and earth ground must not be installed.
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