The ELM310x EtherCAT Terminals are designed for flexible current measurement in the range from -20 to +20 mA. They offer selectable measuring ranges of -20/0/4 to ±20 mA as well as current measurement according to NAMUR NE43.
The measuring range is selected in the CoE, as are the other setting options such as the filter parameters. Irrespective of the signal configuration, all ELM modules have the same technological properties. The ELM310x modules for current measurement offer a maximum sampling rate of 10,000 or 20,000 samples per second. The 2-pin plug (push-in) can be removed for maintenance purposes without releasing the individual wires.
This terminal is also available as a variant with an individual calibration certificate. (See related products)
Extensive documentation is available from Beckhoff sales, support or measurement@beckhoff.com.
This ELM3xxx series measurement terminal enables efficient implementation of complex system-integrated data acquisition systems (DAQ) that place high demands on measurement accuracy and time synchronization.
Product status:
regular delivery
Product information
System data | ELM310x |
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Current measurement | ±20 mA, 0/4…20 mA, NAMUR NE43 (2-wire connection) |
Technical data | ELM3102-0000 |
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Number of channels | 2 |
Technology | current measurement |
Signal type | differential |
Connection technology | 2-wire |
Connection type | push-in, service plug 2-pin |
Max. sampling rate | max. 50 µs/20 ksps (per channel, simultaneously) |
Oversampling factor | n = 1…100 selectable (max. 20 ksamples/s) |
Internal resistance | 150 Ω (current) |
Measurement error/uncertainty | typ. < ±100 ppm/±0.01% in some measuring ranges, relative to the respective full scale value, see documentation |
Temperature coefficient | typ. < 10 ppm/K |
Functional diagnostics | yes |
Connection diagnostics | recommendation: 4…20 mA mode |
Distributed clocks | yes, accuracy << 1 µs |
Resolution | 24 bit (incl. sign) |
Electrical isolation channel/channel | no |
Electrical isolation channel/bus | 707 V DC (type test) |
Electrical isolation channel/SGND | 707 V DC (type test) |
Current consumption power contacts | – |
Current consumption E-bus | typ. 340 mA |
Weight | approx. 350 g |
Operating/storage temperature | -25…+60°C/-40…+85°C |
Thermal dissipation | typ. 3 W |
Special features | ExtendedRange 107%, free numeric filter, TrueRMS, integrator/differentiator, non-linear scaling, PeakHold |
Approvals/markings | CE, UL |
Housing data | ELM-30-xpin |
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Design form | metal housing with signal LEDs |
Material | zinc die-cast |
Dimensions (W x H x D) | 30 mm x 100 mm x 95 mm |
Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
Side by side mounting by means of | double slot and key connection |
Marking | – |
Wiring | solid conductors (s): direct plug-in technique; fine-stranded conductors (st) and ferrule (f): spring actuation by screwdriver |
Connection cross-section | s*: 0.2…1.5 mm², st*: 0.2…1.5 mm², f*: 0.25…0.75 mm² |
Connection cross-section AWG | s*: AWG24…14, st*: AWG24…14, f*: AWG24…14 |
Stripping length | 8…9 mm |
*s: solid wire; st: stranded wire; f: with ferrule
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