8-channel analog input terminal 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 

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

ExThe ELX3158 analog EtherCAT 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. With a technical measuring range of ±107 % of the nominal range, the terminal also supports commissioning with sensor values in the limit range and evaluation according to NAMUR NE43. The error LEDs indicate an overload condition and wire breakage. The error LEDs indicate an overload condition and wire breakage.

 

EtherCAT terminals of the ELX series must always be operated in conjunction with the ELX9560 power supply terminal. This terminal generates an electrically isolated output voltage (24 V EX) from the input voltage (24 V DC) for supplying the subsequent ELX terminals. If a new power supply is required, the combination of an ELX9410 and an ELX9560 can be used so that further ELX terminals can be added. The ELX terminal string must be terminated with one ELX9012 or two ELX9410.

Technical data ELX3158
Technology Current input
Signal current 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
Current consumption E-bus typ. 75 mA
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, UL, ATEX, IECEx
Ex marking ATEX:
  II 3(1)G Ex ec [ia Ga] IIC T4 Gc
  II (1)D [Ex ia Da] IIIC
  I (M1) [Ex ia Ma] I
IECEx:
  Ex ec [ia Ga] IIC T4 Gc
  [Ex ia Da] IIIC
  [Ex ia Ma] I
further Ex components  
ELXxxxx EtherCAT Terminals with intrinsic safe in- and output
ELXxxxx-0090 EtherCAT Terminals with intrinsic safe in- and output and TwinSAFE SC
CPXxxxx Multi-touch Panel PCs and multi-touch Control Panels for use in hazardous areas, Zone 2/22