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Model
7055 Quick
Disconnect
Card-The
Model
7055 is
an integral
part of the Model 7056 General Purpose
Scanner
Card. The Model 7055 is the section
of the Model 7056 that
provides
the input
and output
connections.
Several
Model
7055s can be prewired
for particular
applications,
When that
particular
application
is required
the present
Model 7055 can
be replaced with another
Model 7055.
Model
7056 General
Purpose
Scanner
Plug-In
Card-The
Model 7056 is field installable
in the Model 705 Scanner main-
frame.
The general
purpose
card will switch
up to 10 2-pole
channels.
The card can be used as a voltage scanner, indepen-
dent relay card or a matrix
card. The 2-pole switching
is ac-
complished
in less than 10ms and the expected
relay life is 106
closures
at the maximum
contact
ratings.
Barrier strips are
used to facilitate
input
and output
connections
to the relay
scanner
plug-in
card. The plug-in
card can be easily removed
through
the rear panel of the Model 705.
Model
7057 Thermocouple
Scanner
Plug-In
Card-The
Model 7057 is a low voltage
scanner card which is field install-
able in the Model 705 scanner
mainframe.
Since it combines
the functions
of a thermocouple
scanner and uniform tempera-
ture
reference
it is especially
useful
for scanning
thermo-
couples.
The input terminals
are #I10 alloy-copper
set in an
isothermal
block to minimize
temperature
differences.
A ther-
mistor sensor within the isothermal
block is used with a bridge
network
on
a Model
7057
to
give
an indication
of the
temperature
reference or cold junction.
The temperature
of the
heat sink is used to calculate
the corrected
thermocouple
out-
put. The output
voltages
of each thermocouple
must be con-
verted
to temperature
(OC or OF) using appropriate
thermo-
couple tables or polynomial
equations.
In addition
any channel
may be used to monitor
low level signals.
The Model
7057
uses two form A contacts
for scanning
of signals up to 35V
peak or 100mA peak. Input and output
connections
are made
through
the rear panel of the scanner
mainframe
using #4
screw terminals
on the Model 7057.
Model
7058
Low
Current
Scanner
Plug-In
Card-The
Model 7058 is field installable
in the Model 705 Scanner Main-
frame. The low current
card will switch
up to 10 l-pole
chan-
nels. For optimum
low level current switching,
the Model 7058
is designed
to minimize
offset
current
error (less than I pAI,
while
guarding
ensures
that high isolation
is maintained
be-
tween
input
signals.
The
break-before-make,
single
pole
switching
of the Model 7058 is designed
to maintain
current
paths for signals not connected
to the output,
or when internal
jumpers
are removed
to provide
high input resistance for mak-
ing voltage
measurements.
AC or DC signals up to 28V or
100mA may be scanned. Triaxial input and output connections
to the scanner
plug-in
card are easily made through
the rear
panel of the Model 705 Scanner
mainframe.
Model 7059 Low Voltage
Plug-In
Card-The
Model 7059 is
a low voltage
scanner
plug-in
card which
is field installable
in
the
Model
705
Scanner
mainframe.
The
Model
7059
will
switch up to 10 channels.
For low level transducer
and thermo-
couple
output
switching
the
Model
7059
is designed
to
minimize
thermal
error voltage
(less than 1p.V with respect to
copper)
and ensure that
high isolation
(10X2)
is maintained
between
input signals. The break-before-make,
2-pole switch-
ing is accomplished
in less than 5ms. Expected
relay life (108
closures)
is obtained
when signals less than IOV or less than
10mA
are scanned.
However,
peak signals
up to 200V
or
IOOmA may be scanned.
Barrier strips are used to facilitate
in-
put and output
connections
to the scanner
plug-in
card. The
Model
7059 is easily removed
through
the rear panel of the
Model 705 Scanner
mainframe.
Model 7008-3 IEEE-488 Cable-The
Model 7008-3 is a three
foot (I meter) IEEE-488 cable. The cable has 24 stranded
wire
conductors
and is terminated
with IEEE-488 standard
connec-
tors.
Model
7008-6
IEEE-488
Cable-The
Model
7008-6
is a six
foot (2 meter) IEEE-488 cable. The cable has 24 stranded
wire
conductors
and is terminated
with IEEE-488 standard
connec-
tors.
Model
4801 Low
Noise
BNC to BNC Cable-The
Model
4801 is a low noise
BNC-to-BNC
cable which
is especially
useful
for
"daisy
chain"
wiring
configurations
of multiple
Model 705's.
Model 7010 Cable Adapter-The
Model 7010 is an IEEE-488
cable adapter. The adapter extends the IEEE-488 connector
by
one connecter
width.
1.9 REPACKING
FOR SHIPMENT
The Model 705 should be packed in its original carton.
Before
packaging,
wrap the instrument
in plastic. After it is placed in
the box, surround
the instrument
with
Styrofoam
packaging
material.
If the Model 705 is to be returned
to Keithley
Instruments
for
calibration
or repair, include the following:
*ATTENTION
REPAIR DEPARTMENT
on the address label.
*Warranty
status of the instrument.
*Completed
service form.
1-2
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