LEFM 3xxCi User Manual
IB1406 Rev 12
Section 5
Page 27
August 2017
Transmitter Terminations
Before inspecting components, open the power supply circuit breaker. Failure to do so can result
in electrical shock and/or explosion.
Figure 4.1 Fully Assembled Transmitter
The four conduit entries at the rear of the transmitter are for user connections. A hazardous area conduit
seal is required within 2 inches (~5 cm) of the device on every entry used. Unused entries must have plugs
installed to be wrench tight with at least 5 threads fully engaged for a ¾ inch NPT connection or 8 threads
for an M20 connection.
If ATEX approved glands are to be used, they shall be types that include compound filled seals
around individual cores. (Refer to EN 60079-14 clause 10.4.2).
The wires should then be routed so that the terminations can be made. The
terminations are made under the rear cover at the terminal blocks. Refer to Figure 4.2 for the location of the
transmitter terminations on the IOP terminal blocks and an identification of the pin numbers. The inside of
the rear cover has a diagram of the user connections.
WARNING
WARNING
