Haefely RM 430 Capacitive Divider Ratio Meter

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Haefely RM 430
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RM 430 Datasheet
The Haefely RM 430 Capacitive Divider Ratio Meter is used for the measurement and check of the transformation ratio of voltage dividers and terminal networks.

The instrument measures the real transformation ratio taking into consideration the influence of the surroundings and including the effect of the measuring cable (which is important especially in the case of damped capacitive voltage dividers).

The connection to the high voltage electrode of the voltage divider and the instrument can be done with a wire of 1 mm diameter. For the low voltage arm the impulse voltage measuring cable shall be preferably used.

The transformation ratio meter has been developed especially for checking-up the transformation ratio of high voltage dividers in the test field.
Haefely RM 430 Features
  • Easy usage
  • Real Ratio measured
  • Special designed for HV dividers
  • Small, portable unit
  • Battery powered
Haefely RM 430 Specs
  • Measuring Range: 1 - 9999
  • Ranging: automatic
  • Max. load: < 10nF, > 5k7
  • Accuracy: ± 1%
  • Calibration Voltage: 1kHz, 90Vpp sine wave
  • Display: 4 digits
  • Overflow indicator: yes
  • Supply: Built-in battery with charger
  • Duration: 100 measurements / charge