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SIY Signal Conversion

Virtually every facility has some number of old legacy signals that must be converted to something more useable, such as 4-20mA. The best way to convert those signals is with a programmable isolator that outputs clean, stable signals and has the flexibility to be applied to a variety of conversion needs.

SIY Signal ConversionDownload the PDF file

Such an isolator is the highly flexible SIY PC Programmable Signal Isolator and Converter. This exceptional signal converter is PC-configurable, making it easy to change the signal conversion parameters as the needs change. Whether the input is a voltage between -0.5V to 11V with the minimum span being 250mV within that overall range, or current between -2.5mA and 55mA with the minimum span being 1mA the SIY is a versatile signal converter to have on hand.  The SIY isolator is an output loop powered unit that derives its operating power from the host or receiving device.  Whether the input is a voltage between -0.5V to 11V with the minimum span being 250mV within that overall range, or current between -2.5mA and 55mA with the minimum span being 1mA the SIY is a versatile signal converter to have on hand.  The SIY isolator is an output loop powered unit that derives its operating power from the host or receiving device. However, the flexible SIY allows configuration of that 4-20mA output to meet specific requirements, such as setting the lower range limit of the output to be between 3.8mA and 17.4mA and the upper range limit to be between 7.8 and 21.4mA. If even more flexibility is needed, the SIY includes an 85-point linearizer that can be used to characterize the input to output relationship.

Key attributes:

  • Isolation: 1500Vrms field-mount / 500Vrms DIN-mount
  • Temperature Specs: -40°C to 85°C
  • Drive Capacity: 654Ω @ 24Vdc
  • RFI Rejection: Up to 20 V/m with <0.1% span error
  • 85 Point Linearization
  • Output Damping