Section 4: Using the Model 9100: Insulation/Continuity Function (Option 135) 4.18-1
4.18 Insulation/Continuity Function — Operation
4.18.1 Introduction
This sub-section is a guide to the use of the Model 9100 Option 135 — an option that
extends the functionality of the active resistance feature to include the calibration of hand-
held insulation and continuity testers.
Option 135 allows both manual and procedure mode calibration of the ‘250V/500V/
1000V’ class of hand-held meters, designed to test the insulation resistance and continuity
of electrical circuits and installations. These meters provide the facility for testing
insulation resistance at a nominal DC potential of 250V, 500V or 1000V, in addition to
testing circuit connectivity at a nominal DC current of 200 milliamperes.
Option 135 has two modes of operation:-
1) A continuity mode, where 4-wire active ohms with a 350mA maximum
current capability is provided in three ranges, with a visual indication of the
current provided by the unit-under-test (UUT).
2) An insulation mode, where 2-wire high voltage active ohms with a 1350V
DC maximum voltage capability is provided in five ranges, with a visual
indication of the output voltage provided by the unit-under-test together
with a derived value of output current for the user’s convenience.
This section assumes that the reader is familiar with the Model 9100 user interface, soft keys,
layout and control system of the active resistance function. If this is not the case, please refer
to Section 4.7 for a more detailed description before attempting to use Option 135.
CAUTION
The injection of very high voltages (up to 5000 volts) from a breakdown
or ‘Hipot’ tester would be likely to cause ‘flashover’ and permanently
damage the input to the Model 9100. This is a serious consideration and
must not be overlooked by the user. The Model 9100 Option 135 is only
intended to calibrate hand-held 1000V class insulation and continuity
testers. It will not calibrate flash testers, high voltage MEGGERs
™
,
insulation breakdown testers or Hipot testers, all of which produce very
high voltages in excess of the capability of the Model 9100 Option 135.
Fluke will not be held responsible for damage to the Model 9100
caused by misuse with inappropriate equipment, and any such use will
render the user’s warranty invalid.
Please confirm that the maximum voltage output capability of the unit you
wish to calibrate is less than 1350VDC before attempting to use the Model
9100 Option 135 function.
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