Biddle MEGGER - Page 5

For testing between two conductors—connect test leads to the
two conductors.
See page 32 for use of Guard terminal.
9. Operate and read. Turn crank in clockwise direction at
normal speed which is indicated on the instrument, and ob-
serve position of pointer over the scale—it shows the value of
the insulation resistance under test. Take the reading while
operating and at a fixed time, preferably 30 or 60 seconds. See
Operating Time, page 31.
10. See Supplementary Instructions, page 29.
11. See Special Directions for the Various Types, page 4.
FIGURE 2. The hand-cranked “Bridge” Megger insulation and resist-
ance tester can be used for Insulation Resistance tests; also Wheat-
stone Bridge, Varley and Murray Loop measurements.
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