Remote I/O Module ANTARES 8AIH



  • 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


Ex II 2(1)G Ex ib [ia IIC/IIB Ga] IIC T4 Gb
Ex II (1)D [Ex ia Da] IIIC
Ex ib [ia IIC/IIB Ga] IIC T4 Gb
[Ex ia Da] IIIC
Class I, Zone 1

Ambient temperature

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


PTB 11 ATEX 2017
IECEx PTB 11.0059
DNV A-13339
TC RU C-DE.BH02.B.00005
KCS KTL 13-KB4BO-0300
KCS KTL 13-KB4BO-0301
UL BR 13.0231


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.

Technical data *

Protection class (EN 60529)
Enclosure: IP 30 in the ANTARES system construction
Dimensions (W x H x D) 45 mm x 110 mm x 114.5 mm
Material Enclosure material: PA
Installation Mounting rail TH 35-15 DIN EN 60715 (steel, galvanised)
Storage temperature -25 °C up to +85 °C
Humidity 5 up to 95 %, non-condensing
Vibration (EN 60068-2-6)
2 g/7 mm; 5 Hz up to 200 Hz in all 3 axes
Shock resistance (EN 60068-2-27)
15 g/11 ms, ± 3 shocks per direction
Weight approx. 390 g
Display LEDs in enclosure front:
Status: PWR, ST, ERR1, ERR2
Inputs: per Channel 1 LED ERR
Interface Number of channels
8 analog inputs Ex i HART (short-circuit-proof)
Voltage Minimum voltage at 20 mA: 16 V
Resistance Input resistance: Ri = 10 Ohm
Signal range 4 up to 20 mA
Connection plug-in tension spring-loaded clamps,
4-pole up to 2.5 mm²
optional coding and numbering

*Refer to the documentation for more detailed information


Data Sheet - Remote I/O Module ANTARES 8AIH

Declaration of Conformity 11-6143-7C0004