Model# VFC

Precision Integrator w/ Relay Output

Provides relay closure count which is proportional to the time integral of the input signal.

  • Designed for use with voltage, current, watt, or var transducers with analog outputs compatible with the inputs in chart.
  • Provides Vhr, Amphr., Varhr, and Whr. output pulse.
  • Instrument Power (std.):
    – 85-135Vac
    – 50-400Hz
    – 3.5VA
    – “-22” Option: 230Vac, 50/60Hz, ±15%


Temperature Range-10°C to +60°C
Temperature Effect±0.5%
Weight1.3 Lbs


Class±0.25% F.S.


Range See Datasheet
FrequencyDC with up to 100% ripple @ 120Hz or higher
Overload10Vdc max.
Impedance: (Ω) Voltage Input> 1M
Impedance: (Ω) Current Input> 200


RelayN/O SPST, 120V, 0.5A contact rating
Relay closure period200ms
Linearity±0.1% F.S.

Model# VFC Signal Converter

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