Sensors according to EN 60947-5-6 (NAMUR)
or potential-free contacts can be connected
to the IMX12-DI03-1S-2R-S/24VDC isolating switching amplifier. The device can be installed in zone 2. The device can be switched
between 1-channel operation with signal doubling or 1-channel operation with alarm message output using DIP switches. The output
circuits are equipped with two changeover relays. The device complies with the requirements of the NE21.
The devices feature DIP switches on the
front. This allows to select between the output
mode, the input circuit monitoring, as well as
toggle between signal duplication and 1-channel operation. When using mechanical contacts, either line monitoring must be switched
off or the contact must be wired with resistors
(see wiring diagram).
The Pwr LED lights green to indicate operational readiness. An error in the input circuit leads to a flashing red LED according to
NE44. Thereupon the relay of the belonging
output circuit drops out.

The device can be used in safety circuits up to
SIL2 (high and low demand according to IEC
61508).
The device is equipped with removable screw
terminals.

■ Relay output (changeover contact)
■ Alarm output (changeover contact)
■ Switchable between: Alarm output or signal doubling
■ Output mode adjustable (open-circuit/closed current mode)
■ Input circuits monitored for wire break/
short circuit (ON/OFF switchable)
■ Complete galvanic isolation
■ Input reverse-polarity protected
■ Removable screw terminals
■ ATEX use in Zone 2, cUL
■ SIL 2