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STB6684/A Operation Manual
Chapter 6 Measurement Procedures and
Examples
6.1 Safety Precautions
When the HV indicator is on, the voltage measured across the DUT is more than 10V, and in the
case of a large capacitor the indicator may stay on for a while after the High Voltage has been
switched off.
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WARNING:
1. Do not –under any circumstances- touch the DUT when the HV indicator is on.
2.Please note that capacitors in the power supply of the instrument may be charged even when
the power has been switched off.
3.This instrument is designed for high precision measurements and will only live up to our
specifications when installed and used properly and in accordance with the manufacturer's
instructions.
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6.2 Installation
Check that the mains voltage selector has been set to the actual supply voltage.
Make sure that there is a ground connection in the mains outlet.
Connnect the megohmmeter to a two-terminal test fixture by means of two coaxial cables,
as shown in the following figure.
H.T.
GND
I in
STB6684A supply up to 1000V (10 mA) on DUT.
STB6684 supply up to 500V (200 mA) on DUT.
Chapter 6 Measurement Procedures and Examples
Shielding of
Testfixture
◇ 73
Do not connect
this shield to anything
Guard
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