Honeywell Sensepoint XCD RFD Technical Handbook page 16

Sensepoint XCD RFD Technical Manual
Sensepoint XCD RFD with Sensepoint XCD remote plug-in sensor
It is necessary to use a ferrite filter at the remote sensor to reduce electromagnetic
interference. The ferrite filter (supplied) should be fitted as follows:
1. Screw the sensor into the remote junction box.
2. Open the ferrite filter.
3. Wind the sensor leads 2 turns round the ferrite filter.
4. Close the ferrite filter.
5. Follow instructions in the individual sensor manuals to complete installation.
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SPXCDHMRFEN Issue 4_08-2016