2-channel analog input terminal thermocouple/mV measurement, 2-wire connection, 16 bit, Ex i ELX3312
Error LED 2
Error LED 1
Run LED 
Power contact
+24 V EX
Power contact
0 V EX
Top view 
extended temperature range
extended shock and vibration range 25g

ELX3312 | 2-channel analog input terminal thermocouple/mV measurement, 2-wire connection, 16 bit, Ex i

ExThe ELX3312 analog input terminals allows the direct connection of thermocouples located in hazardous areas classified Zone 0/20 or 1/21. The circuitry of the ELX3312 can operate sensors with 2-wire technology. Linearisation is possible over the entire freely selectable temperature range. The error LEDs indicate a broken wire. Compensation for the cold junction is achieved through internal temperature measurement. Millivolt measurement is also possible with ELX3312.

Technical data ELX3312 | ESX3312
Technology temperature measurement
Sensor types thermocouples type K, J, L, E, T, N, U, B, R, S, C (default: type K)
Number of inputs 2 (differential)
Connection method 2-wire
Measuring range depending on sensor type, default type K: -200…+1350 °C, voltage measurement: ±30…±100 mV, for further types and details see documentation
Resolution 0.1 °C per digit
Measuring error < ±0.3 % (relative to full scale value)
Internal resistance typ. ≥ 10 kΩ (differential)
Input filter limit frequency typ. 1 kHz; depending on sensor length, conversion time, sensor type
Conversion time 10…800 ms (adjustable, default: 100 ms)
Supply voltage electronics 24 V DC (via power contacts), ELX9560 power supply
Current consumption power contacts typ. 10 mA
Current consumption E-bus typ. 70 mA
Special features limit value monitoring, digital filter and characteristic curve linearisation integrated
Electrical isolation 2500 V (E-bus/field potential)
Weight approx. 60 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
Pluggable wiring for all ESXxxxx terminals
Approvals CE, Ex
further Ex components  
ELXxxxx EtherCAT Terminals with intrinsic safe in- and output
CPXxxxx Multi-touch Panel PCs and multi-touch Control Panels for use in hazardous areas, Zone 2/22
Product announcement
estimated market release 1st quarter 2018