ESI 250-DA - Parallel Inductance Measurement with DC via Detector Terminals

2.
3.4.4
FOR
PARALLEL
INDUCTANCE
MEASUREMENTS
WITH
DC
SUPER-
IMPOSED THROUGH THE DETECTOR
TERMINALS
UNKNOWN INDUCTOR
A
detector
isolating capacitor
is
built into the
Model
250-DA
Bridge
,
This limits to
one watt the dc power which
can be
supplied
to
the
bridge
thus
protecting all
of the bridge circuit.
With care
more
current
and
voltage
can
be applied. The current rating
of
the
bridge
is
given
in
the
table
below.
The
outer
dial must be set
to
zero to use the
"MIDDLE"'
dial
rating.
Both
outer
dials must be set
to
zero
to
use
the "POT”
dial
rating.
These
values
should
never be exceeded.
RESOLUTION
DIAL UNKNOWN INDUCTANCE**
MAXIMUM
CURRENT
12,005 div
OUTER
100.0
|xh to 1200
h
23
ma
1
,
005
div
MIDDLE
10.
0 ^
to 100 h
71 ma
105 div
POT
0. 1 to
10. 5 h
270
ma
Lower limit is one division on
dial which
limits current on
lowest
range.
Umil
250-DA
7/59