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 data | ELM370x |
|---|---|
| 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 data | ELM3704-1001 |
|---|---|
| Number of channels | 4 |
| Technology | multi-function (only thermocouple and voltage aligned) |
| Signal type | differential |
| Connection technology | 2-/3-/4-/5-/6-wire |
| Connection type | push-in, service plug 6-pin |
| Max. sampling rate | max. 100 µs/10 ksps (per channel, simultaneously) |
| Oversampling factor | n = 1…100 selectable (max. 10 ksamples/s) |
| Internal resistance | > 4 MΩ |
| Measurement error/uncertainty | see 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 coefficient | see 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 |
| Connection diagnostics | broken wire/short circuit |
| Functional diagnostics | yes |
| 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 E-bus | typ. 890 mA |
| Weight | approx. 350 g |
| Operating temperature | 0…55°C |
| Storage temperature | -25…+85°C |
| Thermal dissipation | typ. 3 W |
| Special features | ExtendedRange 107%, free numeric filter, TrueRMS, integrator/differentiator, non-linear scaling, PeakHold |
| 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. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, UL |
| Housing data | ELM-30-xpin |
|---|---|
| Design form | metal housing with signal LEDs |
| Material | zinc die-cast |
| 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 technology; 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 |
| Dimensions (W x H x D) | 30 mm x 100 mm x 95 mm |
*s: solid wire; st: stranded wire; f: with ferrule
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| Material compliance | ELM3704-1001 |
|---|---|
| REACH SVHC | no |
| POP | compliant |
| RoHS | compliant with exemption |
| RoHS exemption | 7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors |
| China-RoHS | www.beckhoff.com/china-rohs-io |
| CA Prop65 | www.beckhoff.com/prop65 |
| Disclaimer | This statement and the information contained above are, to the best of our knowledge and belief, accurate, based on the information we have received from our suppliers. This information is in line with the current standard of technology and our suppliers’ technical documentation. The absence of the substances is not verified by Beckhoff Automation by means of analytical tests. When addressed to our customers any information contained in this document is subject to the terms and conditions expressed in the governing customer agreement. Our general terms and conditions apply. |
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