This instrument gives an accurate measurement of resistance and also
locates
faults in cables by adopting the Murray and Varley loop circuit
tests. Complete with Galvanometer. The instrument is
provided with
another switch controlling the sensitivity on short circuiting the
Galvanometer. Arrangements are
provided to use an external galvo or
high voltage source. Ratio arms of the bridge are capable of selecting
and
multiplying factors of .001, .01, 1,10,100 and 1000 for conductive
resistance measurements and for Varley loops sets and
capable of
selecting multiplying factors of 10,100,1000 for Murray test. Coils are
of Manganin
wire.