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9220 Input
Card
Model
DRC-91C/93C
9220.4
INSTALLATION
harness
mating
connector
is
facing up (if it is not, review
The 9220 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
9220
is
factory
installed
if
slip it into the harness strain
ordered
with
a
91C
or
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.
WARNING
6 .
Install the top panel.
9220.5
OPERATION
T h e
9 2 2 0 - 3
a n d
9 2 2 0 - 6
configurations are equivalent to
t h e
9 2 1 0 - 3
a n d
9 2 1 0 - 6
configurations
in
terms
of
disconnect the power cord from
the unit.
Remove the
three
top
The
Model
9220-P2
Configuration
panel screws and slide the panel
provides
the
1
milliampere
off.
Note on the calibration
excitation current to the platinum
cover the position of the Input
sensor (the 9220-P3 supplies
0.1
Card the
9220
will occupy.
milliampere
and
the
9220-R1
supplies
3
milliamperes).
The
2.
Remove
the
four
screws that
resulting
sensor
voltage
is
secure the calibration cover to
amplified
by
a
factor
of
-10
its clips and remove the cover.
(negative
10)
and digitized by a
16
bit A/D converter with a resolution
3.
If
an
Input
Card
must
be
of better than
100
microvolts out
removed, disconnect the wiring
of
3.0000
volts full scale.
The
harness
mating
connector
by
digitized value is converted to a
lifting the locking tab on the
serial data string and transferred
Input
C a r d
connector and gently
to the main microprocessor using
pulling
on the body
of
the
optical isolation.
The amplified
w i r i n g
h a r n e s s
m a t i n g
(-10)
sensor voltage is transferred
connector.
to the J3 MONITORS connector for
1 .
Set the POWER switch to
OFF
and
operation.
external monitoring.
4.
Plug the new
9220
Input Card
into the
A
Input
C a r d
Slot
4
or
the B Input Card Slot
5
with the
9220.6
CALIBRATION
component side to the left of
the unit as viewed
from the
The
9220
was
calibrated
to
front
.
Connect
the wiring
specification prior to shipment.
harness mating connector to the
If recalibration is needed, refer
9220 making
sure that the wiring
to the following procedure.
The
harness locking tab is seated
following
equipment
is
used
to
over the extended edge of the
calibrate the
9220
Input Card:
wiring harness mating connector.
Verify that the wiring harness
1 .
Digital
Voltmeter/Multimeter
is in place correctly by noting
(DVM)
-
4½ digit resolution or
that the "A" or
"B"
on the
better.
9220-2
COPYRIGHT
9/87
LSCI
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