Voltage Isolator 4 Infiniti

The Voltage Isolator 4 Infiniti (T9405MA) is an interface device which provides electrical isolation and allows a ProComp Infiniti or FlexComp Infiniti system to be safely interfaced with analog outputs of line-powered systems, such as:

  • Computers with DAC cards
  • Isokinetic dynamometers (e.g. Biodex)
  • Force platforms
  • Blood pressure monitors
  • SPO2 monitors
  • And more...

A BioGraph Add-on CD is provided with template screens and channel sets to help users develop their own screens. We also provide an off-the-shelf solution for Biodex System. The screen shot above shows one of the screens on the CD.

Illustration of the use of the Voltage Isolator 4 Infiniti with an isokinetic dynamometer and EMG sensors


  1. It has 4 channels and each unit allows for interface with to 4 signals.
  2. It electrically isolates the examinee from the interfaced system (4kV isolation as per IEC/EN 60601-1; medical grade isolation).
  3. It rescales the voltage inputs; possible ranges (set at factory): ±2.5V, ±5V, ±10V, 0-5V, 0-10V or 0-20V.

Suggested Applications

  • Integrate isokinetic systems (such as Biodex) with physiological data
  • Integrate force platforms with physiological data
  • Rehabilitation
  • Biomechanics
  • Sports (athletic performance, sport medicine)
  • Ergonomics
  • Research