Beckhoff ELM3704-0000 4-Channel Analog Input
Beckhoff ELM3704-0000 4-Channel Analog Input
Product Description:
- A 4-Channel Analog Input Module is a high-precision industrial automation component designed to measure and process four independent analog signals from field devices such as sensors, transmitters, pressure sensors, temperature probes, and flow instruments.
- It enables accurate signal acquisition and real-time monitoring for PLCs, controllers, and data acquisition systems in industrial control environments.
- Engineered with advanced signal conditioning and strong noise immunity, the 4-Channel Analog Input module ensures stable, repeatable, and accurate measurements, even in harsh industrial conditions. Its compact and modular design allows easy installation, system expansion, and seamless integration into modern automation architectures.
- The Beckhoff ELM3704-0000 4-Channel Analog Input is a high-performance analog input module designed for industrial automation, process control, and PLC systems.
- This 4-channel analog input module provides precise signal acquisition, reliable measurement, and real-time data processing for voltage, current, and sensor signals in demanding environments.
- Engineered by Beckhoff, the ELM3704-0000 ensures accurate analog signal monitoring across multiple channels, making it ideal for industrial machinery, automated production lines, building automation, and monitoring systems.
- The module’s robust design guarantees long-term stability, electrical isolation, and interference resistance, ensuring smooth integration with EtherCAT or PLC networks.
Product Specification:
| Number of channels | 4 |
| Technology | multi-function |
| 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 | > 500 kΩ (60 V); > 4 MΩ (others); 150 Ω (current) |
| Measurement error/uncertainty | typ. < ±100 ppm/±0.01% 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 |
| 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 |
| Current consumption power contacts | – |
| 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 |
