ELM360x - Introduction
Fig.108: ELM3602-0002, ELM3604-0002, ELM3602-0000, ELM3604-00002 and 4-channel analog input, IEPE/accelerometer, 24 bit, 20/ 50 ksps
The ELM360x EtherCAT terminals are designed for the evaluation of IEPE sensors (Integrated Electronics Piezo-Electric) with and without TEDS, which are mainly used for vibration diagnostics and acoustics. The constant current feed can be set to 0/2/4 mA. The input characteristics are also flexibly adjustable from DC to 10 Hz as high pass filter. The ELM360x basically measures sensor voltages (single ended) up to 20 V AC/DC, but the internal scaler function can be used if, for example, an output in acceleration [m/s²] is desired. The TEDS data of a sensor can be read out and written.
Possible applications:
- Acquisition of AC voltage from IEPE sensors (oscillation measurement, acustics)
- Measurement of mV voltages over current shunts (AC/DC)
Note: due to single ended configuration possible on low side shunts only - Common measurement of voltages up to 20 V single ended (AC/DC)
Irrespective of the signal configuration, all ELM3x0x terminals have the same functional properties. The ELM360x terminals for IEPE evaluation offer a maximum sampling rate of 20,000 or 50,000 samples per second.
Two connector variants were offered: due to IEPE sensors are often connected via coaxial cables, the ELM360x-0002 terminals features BNC connectors; the ELM360x-0000 provides the control‑cabinet‑friendly PushIn. In strong EMC burdened environments, the PushIn connector can be preferred because here shield and signal ground can be performed separately.
Optional calibration certificate:
- with factory calibration certificate as ELM360x-0020: on request
- external calibrated (ISO17025 or DAkks) as ELM360x-0030: on request
Re-calibration service via the Beckhoff service: on request