The frequency transducer/pulse counter

IMX12-FI01-2SF-2I-CPR/24VDC/CC is

equipped with intrinsically safe input circuits and transmits frequency signals up to

20,000 Hz from the Ex area to the non-Ex

area such that the signals are galvanically

isolated. In addition, the input signals can be

monitored for slip. The devices are suitable for

operation in zone 2.

Each channel of the 2-channel device is

equipped with an intrinsically safe input for

sensors in accordance with EN 60947-5-6

(NAMUR) or potential-free contacts. Removable spring type terminals are present for connection purposes.

A current output (0/4…20 mA) is available on

the output side. The device can be powered

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

The device is parameterized via FDT and

IODD with a PC. The current output can be

set to 0/4…20 mA (source or sink optional). In

accordance with the parameterization (I1, I2,

I1 - I2 or I2 - I1), the input signals are output

as a 0/4…20 mA normalized current signal.

The devices have a green power LED (Pwr)

and a red LED to indicate internal faults. For

each input circuit there is a yellow and a red

status LED. A fault in the input circuit leads

to a flashing red LED according to NE44, an

internal error to a steady red LED. The fault

current can be adjusted to 21.5

mA.

The device can be used in safety circuits up to

SIL2 (high and low demand according to IEC

61508) and meets the requirements of NE21.

The device is equipped with removable

spring-type terminals.

■ Input circuits monitored for wire-break and

short-circuit

■ Parameterized via PC

■ Complete galvanic isolation

■ Input reverse-polarity protected

■ Removable spring type terminals

■ Power bridge (connector incl. in delivery)

■ ATEX, IECEx, cFM, cUL, NEPSI, INMETRO, KOSHA, TR CU EAC CMI, TIIS,

■ Installation in zone 2

■ SIL 2