The 1-channel HART®

isolating transducer

IM33-12Ex-HI/24VDC is designed to operate intrinsically safe HART®

2-wire transducers (III) in the Ex area and to transmit the

measured signal to the non-Ex area. In addition to the analog signals, also the digital

HART®

communication signals can be transmitted bidirectionally.

Alternatively, active 2-wire HART®

transmitters

(II) and passive 3-wire HART®

transmitters (I)

can be operated.

The device features 1 input and 2 output circuits laid out for 0/4…20 mA. A green LED indicates operational readiness.

The input signal is transmitted 1:1 without interference and made available at the output in

the non-Ex area. The HART®

signal is transmitted to output 1.

The removable terminal blocks feature test

sockets (Ø 2 mm) for connection of a HART®

handheld.

■ Power supply of 2-wire measuring transducers with HART communication as well

as connection to active 2-wire and passive

3-wire transmitters

■ Input circuit: 0/4…20 mA

■ Output circuits: 0/4…20 mA

■ SIL2

■ Removable terminal blocks, screwable,

with 2 mm test box

■ Complete galvanic isolation

■ Input reverse-polarity protected

■ ATEX, IECEx, UL, CFMUS, TR CU, CCEO,

Kosha

■ Installation in zone 2