General Wiring Guidelines - Emerson FB2200 Instruction Manual

Emerson FB2200 Flow Computer Instruction Manual
D301784X012
March 2019
Figure 2-6. Dimensions – Static Pressure Sensor Version – Aluminum Enclosure
2.5

General Wiring Guidelines

The flow computer's pluggable terminal blocks use compression-type terminals that
accommodate wire between 28 and 12 AWG.
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When making a connection, insert the bare end of the wire (approx. 1/4" max) into the clamp
adjacent to the screw and secure the screw.
To prevent shorts, ensure that no bare wire is exposed. If using stranded wire, tin the bare
end with solder to prevent flattening and improve connectivity.
Allow some slack in the wire while making terminal connections. Slack makes the wires more
manageable and helps minimize mechanical strain on the terminal blocks.
Use twisted pair, shielded and insulated cable for communication and I/O wiring to minimize
signal errors caused by electromagnetic interference (EMI), radio frequency interference
(RFI) and transients. When using shielded cable, ground all shields at only one point in the
appropriate system. This prevents circulating ground current loops that can cause signal
errors.
Installation