3-5
INSTALLATION AND OPERATION INSTRUCTIONS
GUARD MODE CONFIGURATION
In this configuration the
Guard
and
Ground
is connected together with an external jumper or a
switch internal to the Test Set, depending on the design. Any current associated with the
Return
is indicated on the current meter. Any current associated with the
Guard
bypasses the current
meter. Leakage current through the test specimen is indicated on the current meter. Stray
leakage to earth ground is not indicated on the current meter. This configuration can not be used
if it is not possible to isolate the return side of the Test Specimen from earth ground.
HIGH VOLTAGE
TRANSFORMER
Amp
Guard
Ground
Return
Ground
Test
Specimen
Stray
Leakage
High
Side
Return or Low
Side