Page 14 Foundation Fieldbus RMA803 Remote Indicator User's Guide Revision 4
5. Feed both loop powered leads through the Ferrite core, 32301350-001, and then back around
and through a second time.
6. Connect both loop power leads to the loop terminals. Torque terminal screws to 0,6 N.m (5.3
lbf.in) to 0.8 N.m (7.0 lbf.in).
Note. The remote Indicator is not polarity-sensitive.
7. Replace the end cap and secure it in place being careful not to damage the ferrite core or wires.
Fieldbus Network Wiring
For Fieldbus network wiring concepts see application notes such as Relcom Inc. Fieldbus Wiring
Guide.
Lightning Protection
If your Remote Indicator includes the optional lightning protection, connect a wire from the Earth
Ground Clamp (see Figure 5) to Earth Ground to make the protection effective. Use a size 8 AWG
or (8.37mm
2) bare or green covered wire for this connection.
Supply Voltage Limiting Requirements
If your Remote Indicator complies with the ATEX 4 directive for self-declared approval per 94/9EC,
the power supply has to include a voltage-limiting device. Voltage must be limited such that it does
not exceed 9 to 32 V DC. Consult the process design system documentation for specifics.
ATTENTION
FF power Supply along with the Terminators has to be used.
Explosion-Proof Conduit Seal
WARNING
When installed as explosion proof in a Division 1 Hazardous Location, keep
covers tight while the Remote Indicator is energized. Disconnect power to the
Remote Indicator in the non-hazardous area prior to removing end caps for
service.
When installed as non-incendive equipment in a Division 2 hazardous
location, disconnect power to the Remote Indicator in the non-hazardous
area, or determine that the location is non-hazardous before disconnecting or
connecting the Remote Indicator wires.
Remote Indicator installed as explosion proof in Class I, Division 1, Group A Hazardous (classified)
locations in accordance with ANSI/NFPA 70, the US National Electrical Code, with 1/2 inch
conduit do not require an explosion-proof seal for installation. If 3/4 inch conduit is used, a LISTED
explosion proof seal must be installed in the conduit, within 18 inches (457.2 mm) of the Remote
Indicator.
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