53 | Kato Engineering, Inc.
8.5 Sensing Filter Option
For special legacy products, such as the 9A5 exciter, a sensing filter is required for the transmitter.
This sensing filter helps mitigate high voltage spikes that can be seen in certain applications. The
figure below demonstrates the wiring of the sensing filter to the transmitter. When utilizing the
sensing filter, a 40kΩ offset needs to be set in the receiver.
Figure 27 Sensing Filter Wiring/Installation Detail