Emerson Process Management rosemount 3300 series manual 211&7,216, 00809-0100-4811, Rev AA October

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00809-0100-4811, Rev AA October 2002

Rosemount 3300 Series

&211(&7,216

Figure C-2. Rear connection panel with Optional NiCad Recharger Jack

The HART Communicator exchanges information with the 3300 Series transmitters from the control room, the instrument site, or any wiring termination point in the loop. The HART Communicator should be connected

in parallel with the transmitter. Use the loop connection ports on the rear panel
of the HART Communicator (see Figure C-2). The connections are
explosive atmosphere.	!￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿	4￿￿￿￿￿￿￿￿￿
non-polarized.

Do not make connections to the serial port or NiCad recharger pack in an

008AB

Before connecting the HART Communicator in an explosive atmosphere, make sure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.

127(

The HART Communicator needs a minimum of 250 ohms resistance in the loop to function properly. The HART Communicator does not measure loop current directly.

127(

Loop must be broken to insert the 250 ohm load resistor.

C-5