Fluke 742A-10k Instruction Manual page 5

DESIGN
AND
CONSTRUCTION NOTES
The 742A
Series are constructed of arrays of
Fluke wirewound
precision hermetically-
sealed
resistors.
No
adjustable
resistors
of any
kind are used.
Each 742
A
is
built
with a temperature
coefficient
near zero
at
23°
C.
To
further reduce
errors
caused by temperature changes,
the
binding
posts are constructed
of low-thermal
emf
material.
FEATURES
Figure
1
shows
a front panel view.
Figure
2
shows
a rear panel view.
Table
2
describes
binding post
functions. Table
3 describes the rear
panel
labels.
Figure
1.
Typical Front
Panel
View
Table
2.
Functions
of
the Binding Posts
742A BINDING
POST
FUNCTION
CURRENT
HI Input
for
the current source from an
ohmmeter
CURRENT
LO
Input
for
the current
source from an ohmmeter
SENSE
HI
Measurement
point
for
a four-wire
ohmmeter
SENSE LO
Measurement
point
for
a four-wire
ohmmeter
CHASSIS
GROUND
Connected
to
the
case
for
shielding