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ELM3702-0101 | EtherCAT Terminal, 2-channel analog input, multi-function, 24 bit, 10 ksps, electrically isolated, LEMO

ELM3702-0101 | EtherCAT Terminal, 2-channel analog input, multi-function, 24 bit, 10 ksps, electrically isolated, LEMO

ELM3702-0101 | EtherCAT Terminal, 2-channel analog input, multi-function, 24 bit, 10 ksps, electrically isolated, LEMO

Channel 1
Channel 2
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ELM3702-0101 | EtherCAT Terminal, 2-channel analog input, multi-function, 24 bit, 10 ksps, electrically isolated, LEMO

ELM3702-0101 | EtherCAT Terminal, 2-channel analog input, multi-function, 24 bit, 10 ksps, electrically isolated, LEMO

The ELM370x multifunction terminals have a flexible input circuit that can be set to over 30 different electrical connection types via EtherCAT: from voltage ±60 V to ±20 mV and thus also thermocouple and IEPE, current ±20 mA, resistance measurement 5 kΩ and thus also temperature RTD (Pt100 etc.), measuring bridges and potentiometers, and all of these in turn in 2- to 6-wire connection depending on the type. Thus, most electrical measurement tasks can be solved with only one terminal.

The ELM3702-0101 adds helpful functions to this series: The two channels are not only independently adjustable as in all ELM3xxx terminals, but also galvanically isolated from each other and from the EtherCAT bus. Furthermore, it can also query TEDS data in the sensor, among other things, and supports 1000 Ω quarter bridges. With the LEMO plugs, the ELM3702-0101 is primarily designed for laboratory use, where sensor configurations are changed on a daily basis and a stable and reliable plug connection is still required.

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 dataELM370x
Strain gaugequarter bridge (1000 Ω +350 Ω + 120 Ω, ±2/4/8/32 mV/V), half bridge (±2/±16 mV/V), full bridge (±2/4/8/32 mV/V), internal bridge completion and supply adjustable 0…5 V (2-/3-/4-/5-/6-wire connection)
Voltage measurement±60/10/5/2.5/1.25 V, ±640/320/160/80/40/20 mV, 0…5/10 V (2-wire connection)
Current measurement±20 mA, 0/4…20 mA, NAMUR NE43 (2-wire connection)
IEPE measurement±2,5/5/10 V, current feed 2 mA, acquisition of the modulated AC voltage, AC/DC coupling (parameterizable high-pass), (2-wire connection)
Potentiometer measurementpotentiometer ≥ 1 kΩ, supply integrated and adjustable 0…5 V (3-/5-wire connection)
Resistance measurement0…50 Ω, 0…200 Ω, 0…500 Ω, 0…2 kΩ, 0…5 kΩ (2-/3-/4-wire connection)
Temperature measurement (RTD)Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, diverse KT/KTY (types see documentation) (2-/3-/4-wire connection)
Temperature measurement (thermocouple)type A1, A2, A3, B, C, D, E, G, J, K, L, N, P, R, S, T, U and others; internal/external/remote cold junction measurement (2-wire connection)
Technical dataELM3702-0101
Number of channels2
Technologymulti-function
Signal typedifferential
Connection technology2-/3-/4-/5-/6-wire
Connection typeLEMO 1B, 8-pin
Max. sampling ratemax. 100 µs/10 ksps (per channel, simultaneously)
Oversampling factorn = 1…100 selectable (max. 10 ksamples/s)
Internal resistance> 500 kΩ (60 V); > 4 MΩ (others); 150 Ω (current)
Measurement error/ uncertaintytyp. < ±100 ppm/±0.01% in some measuring ranges, relative to the respective full scale value, see documentation
Temperature coefficientup to typ. < 1 ppm/K in some measuring ranges, see documentation
Functional diagnosticsyes
Connection diagnosticsbroken wire/short circuit
Distributed clocksyes, accuracy << 1 µs
Resolution24 bit (incl. sign)
Electrical isolation channel/channel707 V DC (type test)
Electrical isolation channel/bus707 V DC (type test)
Electrical isolation channel/SGND707 V DC (type test)
Current consumption E-bustyp. 580 mA
Weightapprox. 350 g
Operating/storage temperature0…+55°C/-25…+85°C
Thermal dissipationtyp. 3 W
Special featuresExtendedRange 107%, free numeric filter, TrueRMS, integrator/differentiator, non-linear scaling, PeakHold, galvanically isolated channels, integrated external cold junction measurement
Approvals/markingsCE, UL
Housing dataELM-30-LEMO
Design formmetal housing with signal LEDs
Materialzinc die-cast
Dimensions (W x H x D)30 mm x 100 mm x 95 mm
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection
Marking
WiringLEMO

*s: solid wire; st: stranded wire; f: with ferrule

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