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Weschler Instruments is a manufacturer and distributor of electrical and electronic measurement equipment. Customers worldwide use our products in power plants, steel mills, chemical plants, paper mills and other industrial applications that require rugged, reliable and accurate instrumentation.
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Sifam Tinsley AC Transducers

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AC Voltage & Current Transducers - Sifam Tinsley

Theta 20A/20V The is used to measure and convert AC Voltage or Current input into a load independent DC current or voltage output signal.
Output signal generated is proportional to the root mean square value of the input Current or Voltage.

  • TRMS sensing
  • Field programmable input range
  • Single or dual output
  • Direct connect up to 5A or 500V
  • Accuracy class 0.2
  • Wall or DIN rail mounting


Frequency Transducers - Sifam Tinsley

The Sifam Tinsley Theta HZ transducer is used for frequency measurement.  The output signal is proportional to the measured frequency and is either load independent DC Current or load independent DC Voltage

  • Programmable input range
  • Single or dual output
  • Selectable DC V or DC mA output
  • Accuracy class 0.2
  • RS-485 Modbus option
  • Wall or DIN rail mounting


Power Transducers - Sifam Tinsley

The Sifam Tinsley Theta 30P is a compact, multi-function panel mount power quality monitor, which measures, calculates and displays major electrical parameters of three phase power systems.

  • TRMS measurement of active power, reactive power, appaprent power, power factor or phase angle
  • Field programmable function
  • Programmable V & I input ranges
  • Single or dual output
  • Selectable DC V or DC mA output
  • Accuracy class 0.2 for power
  • RS-485 Modbus option