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Operation manual ISOTEST HV
1. Introduction
Direct measurement of impulse voltages of more than 1000 V is a special
case in electrical metrology:
Voltage measurement using an oscilloscope requires not only special
probes but also qualified and experienced operators.
A proper measuring procedure using a sphere gap in accordance with
VDE 0433 / Part 2 is very time-consuming. Apart from having to take
into consideration the ambient conditions (atmospheric pressure, temp-
erature), the evaluation of the measurement using the "50% method"
also poses certain problems.
The ISOTEST HV impulse voltmeter was designed especially for the
measuring of impulse voltages, e.g. for measuring unipolar short-time
impulses emitted by an ELMED ISOTEST
device.
The measuring device allows simple and reliable testing of the high
voltages from ELMED ISOTEST
devices (and others).
Quality assurance standards prescribe this check as a compulsory part of
the quality assurance tests.
The ISOTEST HV impulse voltmeter is a precision measuring instrument
for use not only in laboratories but also on construction sites. The value of
the high voltage being measured can be read off directly in kV from the
illuminated graphic LCD with a resolution of 100 volt.
Using the supplied accessories, ELMED ISOTEST
devices can be easily
connected to the HV impulse voltmeter for performing voltage
measurements.
Adapters for other instruments are available on request.
