2-channel analog input terminal potentiometer, 16 bit, Ex i ELX3252
Error LED 2
Error LED 1
Run LED 
Power contact
+24 V EX
Power contact
0 V EX
-R1
RL1
RL2
-R2
+R1
+R2
Top view 
extended temperature range

ELX3252 | 2-channel analog input terminal potentiometer, 16 bit, Ex i

ExThe ELX3252 EtherCAT Terminal enables potentiometers located in hazardous areas classified Zone 0/20 or 1/21 to be connected directly. A stabilized power supply via power contacts of the ELX9560 power supply terminal and the ratiometric measurement of the input voltage offer the preconditions for precise measurement.

Technical data ELX3252
Number of inputs 2
Technology ratiometric potentiometer, potentiometer supply via terminal, 3-wire connection
Measuring range potentiometer 300 Ω…40 kΩ
Resolution 16 bit (incl. sign)
Measuring error < ±0.3 % (relative to full scale value)
Input filter limit frequency 30 Hz
Wiring fail indication yes
Supply voltage electronics 24 V DC (via power contacts), ELX9560 power supply
Current consumption power contacts typ. 5 mA + load
Current consumption E-bus typ. 70 mA
Special features open-circuit recognition, activatable filters, simultaneous measurement of the channels
Weight approx. 70 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