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Procedure
Thermo Fisher Scientific
Appendix D
Adding Ferrite Clamps to 1400S
Transmitter
Note The ferrite clamps are only used in the ATEX version of the 1400S
transmitter. They are not required for the CSA version transmitter. If
needed, the ferrite clamps kit may be ordered separately.
In order for the 1400S transmitter to meet electromagnetic emission
requirements for CE-EMC approvals, ferrite clamps must be installed
within the transmitter enclosure on all power and signal wiring going into
and out of the transmitter housing.
The ferrite clamp is part of the EMC ferrite clamps kit (p/n 868773). The
kit consists of the following:
Five ferrite clamps (p/n 5-2720-007)
●
At least one clamp "key"
●
The procedure
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The clamp key is used to remove the ferrite clamp from the wire during
wiring changes.
Figure D–1. Ferrite clamps
A ferrite clamp will need to be installed on all wiring that enters or exits the
transmitter enclosure. This may be a shielded twisted pair or a bundle of
individual wires. The limitation is that the wires through one clamp cannot
exceed 5 mm in diameter. Also, all of the clamps MUST be installed within
the enclosure.
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KRILPRO Installation Guide
D-1
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