Fluke 1625Earth/Ground Manuel d'utilisateur Page 73

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Stakeless Earth/Ground Resistance Testing
Principle of Operation
65
Dimensions
Total length of adaptercable 1,8 m, Length
of shielded cable to clamp-on CT 1,5 m.
Operating error*: ± (10% of m.v. + 5 digit).
Display range*:
0,010 ... 130 .
Measuring frequency:
128 Hz.
Measuring voltage: U
m
=48 VAC (primary).
Measuring range*:
0,020 ... 100 .
Resolution:
.001... .1 ohm.
*when using: CT EI-162AC to induce voltage and
CT EI-162X to detect current.
Recommended distance between CT's:
10 cm.
Principle of Operation
Purpose
Testing the resistances of individual ground connections in systems with paral-
lel ground connections (multi-grounded systems).
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