1. General
information
1.1.
INTRODUCTION
The RCL-bridge PM 6302 is
used to measure ohmic
resistors in the
range 0.05 Q. ... 105 MI2,
capacitors in the
range
0.5
pF ... 1050 pF and
inductances in the
range
0.5
pH ...
1050 H.
When
measuring
capacitors and
inductances also a measuring value
of the loss factor D
or the quality
factor Q is obtained.
For the
adjusting a vernier with
linear indicator scale is used.
The unknown measuring
value is
obtained after
the adjusting by
multiplying the scale
value by the
factor of the selected measuring
range.
The
bridge balance is indicated by a
moving-coil
indicator, which is
controlled by an
amplifier with
logarithmic gain
characteristic, adjusting
of the bridge
sensitivity being then
redundant.
Push-button SEARCH is used to
find quickly the
correct
measuring range in the
searching mode.
For measuring
electrolytic capacitors an
external formation
voltage can
be supplied.
By
means of an external adjustable
d.c.-voltage it is
possible to
measure
junction-capacitances on
varicaps.
1.2.
TECHNICAL
DATA
Properties expressed in
numerical values with
tolerances stated
are guaranteed
by the
factory.
Numerical values
without tolerances
stated represent
the
properties of an average
instrument and
merely
serve
as a
guide.
Measurement of resistors (R)
Nominal range
:
0
05 J2
-105
Measuring ranges
:
a
100 mQ.
i n
'
r
b
1
Q io n
c
10
n ioo
n
ioo
a i
kn
with
overlapping
sub-ranges:
e 1
kft 10 kft
scale 0,5
-
10,5
f 10
k£2 100 kfi
g
ioo
kn
1
Mfi
h i
Mn 10 MO
i.
10
M£2 100 Mf2
Setting error limits {see
diagram A, page
46)
-
In
sub-ranges b to
h
—
In sub-ranges a
and
i
Measurement of capacitors (C)
Nominal range
Self capacitance C
G
Measuring
ranges
: ±
0,5 %
of measured
value, additional
±
0,15 %
of
end-of-range value
: ±
1
%
of measured value,
additional
± 0,2 %
of end-of-range
value
0,5
pF
-
1050
pF.
0,1
pF
^sample
=
indicated
^
: <
0,5
pF
: a. 100
pF
-
1000
pF
b.
10 pF- 100
pF
c.
1
pF
-
lOpF
d. 100
nF
-
1
pF
e.
10 nF- 100
nF
f.
InF- 10 nF
g.
100
pF
-
1 nF
h. 10
pF
-
100
pF
i. 1
pF
-
10
pF
n
be
measured
(0.1
pF = 1.4 mm
scale distance
in range
i)
with overlapping sub-ranges:
scaie
0,5-
10,5
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