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ELM3704-1001 | EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps, TC compensation

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ELM3704-1001 | EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps, TC compensation

ELM3704-1001 | EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps, TC compensation

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OK-LED Channel 1
OK-LED Channel 2
OK-LED Channel 3
OK-LED Channel 4
Channel 1
Channel 2
Channel 3
Channel 4
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ELM3704-1001 | EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps, TC compensation

ELM3704-1001 | EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps, TC compensation

The EtherCAT Terminals from the ELM3xxx series were developed in order to enable the high-quality measurement of common electrical signals in the industrial environment. Flexibly usable measurement modules are especially useful in laboratory and testing technology environments.

The ELM3704-1001 with a sampling rate of 10 ksps is designed for fast thermocouple measurements where the ELM3344 and ELM3348 terminals with 1 ksps per channel are not sufficient. For this purpose, the ELM3704-1001 corresponds to the ELM3704-0000, but is only aligned in the thermocouple and voltage measurement function. Thus, all other measuring ranges from the ELM3704-0000 are available to the user (full/half/quarter bridge, 20 mA, 5 kΩ/RTD, IEPE) if they are calibrated on the system side.

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
Voltage measurement±60/10/5/2.5/1.25 V, ±640/320/160/80/40/20 mV, 0…5/10 V (2-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 cold junction measurement (2-wire connection)
Technical dataELM3704-1001
Number of channels4
Technologymulti-function (only thermocouple and voltage aligned)
Signal typedifferential
Connection technology2-/3-/4-/5-/6-wire
Connection typepush-in, service plug 6-pin
Max. sampling ratemax. 100 µs/10 ksps (per channel, simultaneously)
Oversampling factorn = 1…100 selectable (max. 10 ksamples/s)
Internal resistance> 4 MΩ
Measurement error/uncertaintysee documentation, e.g. relative to the respective full scale value in TC range e.g. type K typ. < ±500 ppm/0.05%/0.63 K, in voltage range typ. < ±100 ppm/±0.01% in some measuring ranges
Temperature coefficientsee documentation, e.g. in TC range type K typ. < 13 mK/K, in voltage range up to typ. < 1 ppm/K in some measuring ranges
Functional diagnosticsyes
Connection diagnosticsbroken wire/short circuit
Distributed clocksyes, accuracy << 1 µs
Resolution24 bit (incl. sign)
Electrical isolation channel/channelno
Electrical isolation channel/bus707 V DC (type test)
Electrical isolation channel/SGND707 V DC (type test)
Current consumption E-bustyp. 890 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
Approvals/markingsCE, UL
Housing dataELM-30-xpin
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
Wiringsolid conductors (s): direct plug-in technique; fine-stranded conductors (st) and ferrule (f): spring actuation by screwdriver
Connection cross-sections*: 0.2…1.5 mm²,
st*: 0.2…1.5 mm²,
f*: 0.25…0.75 mm²
Connection cross-section AWGs*: AWG24…14,
st*: AWG24…14,
f*: AWG24…14
Stripping length8…9 mm

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

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