fluenta FGM 160 - Transmitter and Data Connections

FGM 160 Installation and Hook-Up Instructions
62.120.001
Page 27 of 40
6.2.4 Connecting the Pressure and Temperature
Transmitters
Pressure and temperature transmitters should be connected directly to the connection
terminals in the Ex-e enclosure, no barriers are required, as these are built-in in the IS
Barrier module within the FGM 160. For detailed information regarding the built-in barriers
and the optional grounding wire shown in Figure 35, please refer to: FGM 160 – Hazardous
Area Installation Guidelines [2].
The FGM 160 can interface either to 4-20 mA current loop transmitters or HART transmitters.
Depending on the transmitter interface to the FGM 160, a connection described in figures
below should be used. Up to four HART transmitters can be connected to the HART input
terminals, e.g. if condition based maintenance scheme is utilized with double or dual
transmitters.
The pressure and temperature inputs at the FGM 160 are always configured as active
current loop inputs (i.e. the pressure and temperature transmitters are always powered from
the FGM 160 field computer).
Figure 35: Pressure and temperature transmitter hook-up.