8-channel analog input terminal 0/4…20 mA, single-ended, 16 bit, Ex i ELX3158
Error LED 7, 8
Error LED 5, 6
Error LED 3, 4
Error LED 1, 2
Run LED, Error LED 
Power contact
+24 V EX
Power contact
0 V EX
Input 1, 2
Input 3, 4
Input 5, 6
Input 7, 8
UV1, UV2
UV3, UV4
UV5, UV6
UV7, UV8
Top view 
extended temperature range

ELX3158 | 8-channel analog input terminal 0/4…20 mA, single-ended, 16 bit, Ex i

ExThe ELX3158 analog input terminal allows the direct connection of intrinsically safe field devices located in hazardous areas classified Zone 0/20 or 1/21. It supplies measuring transducers located in the field and transmits their analog measuring signals electrically isolated to the automation device. The error LEDs indicate an overload condition and wire breakage.

Technical data ELX3158
Technology intrinsically safe sensors
Signal current 0/4…20 mA
Number of inputs 8 (single-ended)
Connection method 2-wire
Resolution 16 bit (incl. sign)
Measuring error < ±0.3 % (relative to full scale value)
Supply voltage electronics 24 V DC (via power contacts), ELX9560 power supply
Current consumption power contacts typ. 10 mA + load
Distributed clocks yes
Special features standard and compact process image, activatable FIR/IIR filters, limit value monitoring, NE43 NAMUR
Weight approx. 100 g
Operating/storage temperature -25…+60 °C/-40…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/see documentation
Approvals/markings CE, ATEX, IECEx
Ex-Marking II 3(1)G Ex ec [ia Ga] IIC T4 Gc
II (1)D [Ex ia Da] IIIC
I (M1) [Ex ia Ma] I
Ex ec [ia Ga] IIC T4 Gc
[Ex ia Da] IIIC
[Ex ia Ma] I
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CPXxxxx Multi-touch Panel PCs and multi-touch Control Panels for use in hazardous areas, Zone 2/22
Product announcement
estimated market release 3rd quarter 2019