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MODELS 610B,
610BR ELECTROMETERS
ACCESSORIES
FIGURE 33.
Model
6104 Test
Shield.
FIGUU
34.
Elodel
6105 Resistivity
Adapter
pressure.
The Adapter
holds
samples
up to 3.5
inches
in
diameter
and .25
inch
thick.
Maximum excitation
voltage
is
1000 volts.
b.
The model
6105 Instruction
Manual
fully
explains
the
operating
proce-
dures
for
the
system,
using
the Models
24.0A and 6108.
c.
The Model
610B alone
can also
be used with
the Model
6105.
Operate
the
Model
6lOB as a constant
current
source
(paragraph
2-11)
with
the FEEDBACK
Switch
in FAST position.
Connect
the GUARD Terminal
on the
rear
panel
to
the
center
terminal
of the
Model
6105 Power Receptacle.
Other
operating
procedures
are as for
the
3-unit
system.
The current
from
the
Model
6lOB
is
the reciprocal
of the OHMS setting
of
the
Range Switch;
the voltage
is
the Multiplier
Switch
setting
times
the meter
reading.
j-7.
NODELS 2501 AND 2503 STATIC DETECTOR HEADS.
a.
The Model
2501 is a lO,OOO:l
capacitive
voltage
divider
when used
with
the head 3/8
inch
from
the
charged
surface.
Measurements
are accurate
within
10%. The Model
2501 consists
of a 3-inch
diameter
head and 10 feet
of
cable.
It
connecta
directly
into
the Model
610B.
b.
The Model
2503 is a similar
probe.
The difference
between
them is
the
Hodel
2501 has a 3-inch
diameter
head and the Model
2503,
l/2-inch
diameter
head.
0268R
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