The ANTARES 8AIH Remote I/O Module is suitable for the direct linking of 8 intrinsically safe two-conductor transmitters. NAMUR sensors, optocouplers, wired and unwired mechanical contacts or other actuating elements can be connected with intrinsic safety. All of the I/O module’s transmission channels are conductively connected to each other. The ANTARES 8AI Remote I/O Module is operated by and supplied with power by the ANTARES Rail Control Unit (RCU). A bus rail is not necessary. The hot-swap capability allows the electronic unit to be replaced without disconnecting from voltage even in an explosive atmosphere. Parameters can be set for each channel. Open circuit/short circuit monitoring can be programmed for each channel. See the system description for installation instructions.

Features
8 channel analog in HART Ex ia IIC
Two-conductor transmitter
8 fold HART Multiplexer
Integrated bus rail
Installation in ATEX Zone 1/2
or Zone 21/22
Hot-Swap
Galvanic isolation between the inputs and the system
Line break/short-circuit monitoring
Plug-in and codable spring clamps

Marking
Ex II 2(1) G Ex ib [ia Ga] IIC T4 Gb
Ex II 2(1) GD Ex ib [ia IIC Ga] [ia Ga] [ia IIIC Da] IIB T4 Gb
Ex II (1) D [Ex ia Da] IIIC
Ex II (1) GD [Ex ia Da] [Ex ia IIC Ga] [Ex ia IIB Ga] IIIC
Ex ib [ia Ga] IIC T4 Gb
Ex ib [ia IIC Ga] [ia Ga] [ia IIIC Da] IIB T4 Gb
[Ex ia Da] IIIC
[Ex ia Da] [Ex ia IIC Ga] [Ex ia IIB Ga] IIIC

Ambient temperature
-20 °C up to +50 °C
-20 °C up to +60 °C (in conjunction with a distance module)

Parameter Name	Parameter Value
Signal type	analog
Bus	HART
Type	remote safety
Applications	voltage
Number of inputs/outputs	8-channel
Mounting	plug-in integrated line rail-mounted
Other characteristics	stainless steel intrinsically safe ATEX