The isolating transducers IM12-AI01-2I-2IUHPR/24VDC transmit analog measured signals galvanically isolated. The devices are

suitable for operation in zone 2.

The 2-channel device has two inputs for the

operation of HART® 2-wire transducers as

well as active and passive HART® 2-wire

transmitters. Connection is via removable

screw terminals. The device can be powered

from a power bridge that also transmits a collective fault signal.

The device is equipped with 4…20 mA input

circuits and 4…20 mA output circuits (either

as source or sink) or 1…5 V (source). The input signals are transmitted 1:1 without interference within a range of 3.8…20.5 mA. In addition, digital signals can also be transmitted

bidirectionally in accordance with the HART®

protocol. Wire-break ( 22 mA) in the transducer circuit are

output as current < 3.5 mA/voltage < 0.875 V.

The devices have a green power LED (Pwr).

For each input circuit there is a red status

LED. An error in the input circuit causes the

red LED to flash according to NE44.

The device can be used in safety circuits up

to SIL2 (high and low demand according to

IEC 61508) and meets the requirements of

the NE21.

The device is equipped with removable screw

terminals.

■ Input circuits monitored for wire-break and

short-circuit

■ Complete galvanic isolation

■ HART transparent

■ Removable screw terminals

■ Connector for power bridge incl. in delivery

■ ATEX use in Zone 2, cUL

■ SIL 2