ELM3502-0000 | EtherCAT Terminal, 2-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 20 ksps
ELM3502-0000 | EtherCAT Terminal, 2-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 20 ksps
EtherCAT oversampling: maximum sampling rates irrespective of the EtherCAT cycle time
For demanding applications: calibrated analog inputs
SPS 2019: Beckhoff Measurement Modules
Measurement technology easily configured: Analog EtherCAT input terminals.
Measurement technology simply integrated: With the analog EtherCAT Terminals.
The ELM350x EtherCAT Terminals are designed for the evaluation of measuring bridges in full-bridge, half-bridge and quarter-bridge configuration. The terminals feature internally switchable supplementary resistors. The feed is integrated. Like all other parameters, the supply voltage is adjustable in the CoE. Irrespective of the signal configuration, all ELM modules have the same technological properties. The ELM350x modules for the evaluation of measuring bridges offer a maximum sampling rate of 10,000 or 20,000 samples per second. The 6-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 | ELM350x |
|---|---|
| Strain gauge | quarter bridge (1000/350/120 Ω), half bridge (±16/8/4/2 mV/V), full bridge (±32/8/4/2 mV/V), internal bridge completion and supply adjustable 0…5 V (2-/3-/4-/5-/6-wire connection), shunt calibration |
| Voltage measurement | ±10 V, ±80 mV, 0…10 V |
| Potentiometer measurement | potentiometer ≥ 1 kΩ, supply integrated and adjustable 0…5 V |
| Temperature measurement (RTD) | Pt1000 |
| Technical data | ELM3502-0000 |
|---|---|
| Number of channels | 2 |
| Technology | resistor bridge, strain gauge |
| Signal type | differential |
| Connection technology | 2-/3-/4-/5-/6-wire |
| Connection type | push-in, service plug 6-pin |
| Max. sampling rate | max. 50 µs/20 ksps (per channel, simultaneously) |
| Oversampling factor | n = 1…100 selectable (max. 20 ksamples/s) |
| Internal resistance | > 4 MΩ |
| Measurement error/uncertainty | typ. < ±500 ppm/±0.05% in some measuring ranges, relative to the respective full scale value, see documentation |
| Temperature coefficient | up to typ. < 1 ppm/K in some measuring ranges, see documentation |
| Functional diagnostics | yes |
| Connection diagnostics | broken wire/short circuit |
| 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. 450 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 |
|---|---|
| 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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