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ELM3344-0000 | EtherCAT Terminal, 4-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps

ELM3344-0000 | EtherCAT Terminal, 4-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps

ELM3344-0000 | EtherCAT Terminal, 4-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps

Run LED
OK-LED Channel 1
OK-LED Channel 2
Channel 1
Channel 2
Top view 
ELM3344-0000 | EtherCAT Terminal, 4-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps

ELM3344-0000 | EtherCAT Terminal, 4-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps

Thermocouple measurement with Beckhoff components: precise and fast

For demanding applications: calibrated analog inputs

Thermocouple measurement with Beckhoff components: precise and fast

For demanding applications: calibrated analog inputs

The 4- and 8-channel EtherCAT Terminals from the ELM334x economy series are designed for temperature measurement with thermocouples. All common thermocouple types are covered and, with a sampling rate of 1 ksps per channel, fast processes are also easy to record. The resolution is adjustable to 0.001°C. The channel properties can be adjusted individually for each channel via CoE. An exceptionally high measuring accuracy is achieved through the precise measurement of the internal cold junction.

In the ELM334x-0000 version, the 6-pin connector (push-in) is removable for maintenance purposes without loosening the individual cores. The internal ground for the external connection is also available on it in order to avoid potential differences between channels. In addition, the ELM334x can also continuously measure potential differences in order to detect impairments.

The ELM334x-0003 version with white “universal” thermocouple socket is designed in this series for the highest accuracy requirements. As a result, the thermocouple of one type can be fed into the terminal and thus measured even better. Changing the sensor in laboratory operation is even simpler with the mini socket.

Like all ELM3xxx terminals, the ELM334x devices support the TE1310 TwinCAT Filter Designer for application-oriented filter design and the typical internal functions of the ELM3xxx for data processing such as true RMS calculation, drag indicator, etc.

The fed-through power contacts simplify the potential distribution directly on the DIN rail. To reduce ambient air effects, the ZS9100-0003 shielding hood, which is available as an accessory, can be mounted on the terminal.

Available on request as a variant with factory working standard calibration certificate or ISO 17025/DAkkS certificate and recalibration by the Beckhoff recalibration service.

 

Extensive documentation is available from Beckhoff sales, support or measurement@beckhoff.com.

Product status:

regular delivery

Product information

System dataELM334x
Voltage measurement±20/40/80/320 mV (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 dataELM3344-0000
Number of channels4
Technologytemperature or voltage measurement, configurable for each channel
Signal typedifferential
Connection technology2-wire
Connection typepush-in, service plug 6-pin
Max. sampling ratemax. 1 ms/1 ksps (per channel, multiplex)
Oversampling factorn = 1…20 selectable
Internal resistance> 4 MΩ
Measurement error/ uncertaintyDepending on TC type, see documentation, e.g. type K: < ±0.7 °C at 23 °C and < ±1.1 °C at 0…55 °C with internal cold spot
Temperature coefficientdepending on TC type, see documentation, e.g. type K: < 15 mK/K
Functional diagnosticsyes
Connection diagnosticsbroken wire/short circuit
Distributed clocksyes, accuracy << 1 µs
Resolution24 bit (incl. sign), adjustable: 0.1/0.01/0.001 °C
Electrical isolation channel/channelno
Electrical isolation channel/bus707 V DC (type test)
Electrical isolation channel/SGND707 V DC (type test)
Current consumption power contacts
Current consumption E-bustyp. 250 mA
Weightapprox. 350 g
Operating/storage temperature0…+55 °C/-25…+85 °C
Thermal dissipationtyp. 2 W
Special featuresAGND led out, common mode measurement, free numeric filter, TrueRMS, integrator/differentiator, non-linear scaling, PeakHold
Approvals/markingsCE
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*: AWG 24…14,
st*: AWG 24…14,
f*: AWG 24…14
Stripping length8…9 mm

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

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