ESI 250-DA - Parallel Capacitance Measurement with DC via Generator Terminals

2.
4.
4.
3
FOR PARALLEL
CAPACITANCE
MEASUREMENTS
WITH
DC
SUPERIMPOSED
THROUGH THE GENERATOR
TERMINALS
R
-
POWER
LIMITING
RESISTOR
This protects
the
bridge in case
the
unknown
terminals
are shorted.
(E
R
ohms
^
4
R
-
VOLTAGE
ADJUSTING
CON-
This
sets the
dc
voltage.
^
TROL
CONNECT
THE
METER
"V" IN
PARA-
This meter reads the dc voltage of
the
LLEL
WITH
THE DC
SUPPLY
unknown capacitor. The impedance
of
most meters
is
high
enough
so
that
they
will
not
load the
dc supply,
^This
limits
the
dc
power
that
can
be
supplied to
the
bridge
to
one
watt to protect
all of
the
bridge
circuit
in
case
the
unknown
capacitor is
accidentally shorted.
The
maximum
dc
supply
should
not
exceed
300
volts for the protection of the
standard
capacitor.
leislil
250-DA
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