Chilworth JCI 164 High Voltage Adapter

General Description
The JCI 146 is a voltmeter adapter component designed for integration into broader experimental systems.
In combination with our JCI 140, the system enables the measurement of current-carrying conductors with voltages up to ± 60 kV DC with an accuracy of ± 2% (nominal) and minimal loading effects on the device under test.

The high input impedance and low capacitance of the JCI 146 are suitable for more accurate DC voltage measurements.
Other conventional techniques for direct measurement of high voltages (e.g. high voltage meters, capacitive and resistive divider networks, etc.) often provide inaccurate results due to loading effects caused by the measurement setup.

This device can be used for cross-checking the calibration and accuracy of high voltage sources by power utilities, calibration test houses, and cable manufacturers, to name a few application areas.

Features
Direct measurement of current-carrying conductors up to ± 60 kV DC
Highly accurate measurement with minimal loading effects
Low input capacitance
Very high input impedance, typically 10 13 Ohm
Can be used in a wider range of test, measurement, and research systems
Optional battery-powered and optically isolated data acquisition module available for remote monitoring of high voltage.

Specification
Measurement:
Maximum Measurement Voltage ± 60 kV DC
Input Impedance:
Not less than 4.7x10 13 Ohm at ± 50 kV
Input Capacitance:
32 pF (± 20%) (JCI 146 chamber only)
Installation:
Fixed installation (permanent earth connection required)
Usage:
Used in Faraday cage environments (not included as standard)
Accuracy:
Nominal ± 2%
Attenuation: 1/10
of the reading displayed on JCI 140

For use with the JCI 140 static monitor and JCI 165 data acquisition module

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