KontrollVahend ja Tehnika (KVT) OÜ
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Hottinger Baldwin Messtechnik GmbH, Germany
+372 6006190
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Special features

  • 16 simultaneously-sampled, high-level differential analog inputs from ±0.0625 to ±74.9 V
  • 48 automatic gain states ensuring use of the fullest possible A/D converter range
  • Sampling rates up to 100 kHz
  • 16-bit A/D converter per channel across full-scale range
  • 25 kHz, 8-pole analog Butterworth low-pass filter
  • Software selectable sample rates, transducer power and digital filtering

The SoMat EHLS High Level Analog Layer offers 16 simultaneously sampled high-level differential analog inputs through independent connectors. The EHLS can inherently handle any analog input from ±74.9 volts and, together with the SoMat SMART conditioning modules, constitutes a real multi-purpose layer. The EHLS is compatible with practically any input including thermocouples, strain gages, accelerometers, microphones and amplified and un-amplified transducers. Software selectable sample rates, transducer power and digital filtering simplify the set-up of any channel. There are also several calibration options including defined value, external value and multipoint calibrations.

The EHLS may be ordered with an optional analog output function. Outputs are filtered analog output signals that can be used in the creation of time-domain lab durability tests. When setting up the laboratory simulation, bring the SoMat eDAQ system into the lab with the component or vehicle. This practice is highly recommended, as it ensures that all of the transducer instrumentation and properties are identical for the lab simulation as they were for the field data collection. Instead of being recorded, the analog out signals are sent as time series data for the test rig to analyze. The controller can then develop drive files that are played into the test rig reproducing exact field dynamics in the lab. Each output channel is associated with the corresponding (like-numbered) input channel on the EHLS board. Calibration files, directly compatible with popular simulation software, that scale the analog outputs to engineering units are provided. The maximum analog output voltage is ±10 volts. Each of the 16 analog channels contain a three-pole Butterworth filter which attenuates frequencies above 12 KHz. These filters smooth out the stair-steps created by the channel’s digital to analog converter.

SoMat eDAQ EHLS - datasheet PDF, 0.2 Kb