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To prevent shock hazard,
turn
off
the
instrumen
t
and
disconnect
it
from AC line power
and
all test
equipment before
removing
cover.
9210 D i o d e Input Card
DRC-9
1C/93C
9210.4
INSTALLATION
harness
mating
connector
is
facing up (if it is not, review
The
9210
can be installed in the
the harness installation again).
91C/93C
as either Input
A
or Input
Thread the wiring harness along
B (or both with two options).
The
the rear edge of the unit and
9210
is
factory
installed
if
slip it into the harness strain
ordered
with
a
DRC-91C/93C
relief on the rear panel.
Temperature Controller or can be
field installed at a later date.
5 .
Install the calibration cover by
If field installation is required,
reversing procedure
2 .
use the following procedure.
1 .
Set the POWER switch to OFF and
disconnect the power cord from
the unit.
Remove the three top
9 2 1 0 . 5 OPERATION
panel screws and slide the panel
off.
Note on the calibration
T h e
M o d e l
9 2 1 0 - 3
D i o d e
cover the position of the Input
Configuration
provides
the
10
Card the
9210
will occupy.
microampere excitation current to
the sensor.
The resulting sensor
WARNING
voltage is digitized by a
16
bit
A/D converter with a resolution of
50
microvolts and a
full scale
input voltage of
3.0000
volts
(100
microvolts and
6.5535
volts for the
9210-6
configuration).
The
digitized value is converted to a
serial data string and transferred
2.
Remove
the
four
screws that
to the main microprocessor using
secure the calibration cover to
optical
isolation.
The
sensor
its clips and remove the cover.
voltage
is
also
buffered
and
transferred
to
the
rear
panel
3.
If
an
Input
Card
must
be
MONITORS
connector
for
external
removed, disconnect the wiring
monitoring as well as for control
harness
mating
connector
by
selection.
For
the
9210-3
lifting the
locking tab on the
configuration, it is multiplied by
Input
C a r d
connector and gently
1,
for the
9210-6
configuration it
pulling
on
the body
of
the
is
multiplied
by
0.457771
w i r i n g
h a r n e s s
m a t i n g
(3.0000/6.5535).
connector.
6 .
Install the top panel.
4.
Plug the new
9210
Input Card
9 2 1 0 . 6 CALIBRATION
into the
A
Input
Card
Slot
5
or
the
B
Input Card Slot
6
with the
The
9210
was
calibrated
to
component side to the left of
specification in the configuration
the unit as viewed
from the
specified prior to shipment.
If
front
.
Connect
the
wiring
recalibration is needed, refer to
harness mating connector to the
the
following
procedure.
The
9210
making sure that the wiring
following
equipment
is
used
to
harness locking tab is seated
calibrate the
9210
Diode
Input
over the extended edge of the
Card:
wiring harness mating connector.
Verify that the wiring harness
1 .
Digital
Voltmeter/Multimeter
is in place correctly by noting
(RVM)
-
4½ digit resolution or
that the "A" or
"B"
on the
better.
9210-2
COPYRIGHT 12/87 LSCI
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