Signal isolator for electrically isolating the 4 to 20 mA measuring/supply circuit of a measuring transducer with 2-wire connection. The device fulfils two functions simultaneously.

- It provides for electrical isolation and
- it transmits the supply power component of the signal, i.e. auxiliary power, to the measuring transducer without feeding anything to the circuit itself. Accordingly, the isolator does not include any auxiliary power terminals.

Certain variants of the SINEAX Si815 are FSK compatible (frequency shift keying). They are used for dialog-capable "intelligent" measuring transducers with FSK technology and HART or a company-specific protocol.

• Patented contactless capacitive system / wear-free
• Analog measuring method, practically infinite resolution
• Angle of rotation measuring range: 0.. 5 to 0.. 270°
• Measurement output: 0.. 1 to 0/4.. 20 mA
• Available with "intrinsically safe" explosion protection per EEx ia IIC T6, can be used in explosive atmospheres
• Adjustable zero point and span
• Output quantity characteristics: linear or as a characteristic V curve
• Minimal torque: < 0.001 Ncm
• Drive shaft has no mechanical stops and can be infinitely rotated.
• Available as GL variant (Germanischer Lloyd) /
  suitable for use on ocean-going vessels