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Number
of channels:
4
(in
addition
to the existing Inputs,
A
and
B ) ,
designated Al through
A4.
Contact
Configuration:
4 pole (2
current poles make-before-break,
2
voltage poles break-before-make).
Maximum
Input
Voltage:
32 volts DC
or peak
AC.
Maximum
current:
10
milliamperes.
Thermal
O f f s e t :
Less than
3
micro-
volts per contact on break-before-
make poles, less than
50
microvolts
on others.
Contact Resistance:
L e s s
than
1
open
channel
Isolation:
>10 10 ohms
I n p u t / O u t p u t :
24 pin
"D"
style
connector, mate supplied.
Channel
Selection:
Front panel
SENSOR
A
key increments AO,
A l ,
A2,
A3,
A4,
AO,
etc. each t h e it is
pressed or automatically in the
SCAN
mode.
All front panel
operations can be duplicated over
the remote interfaces.
switch
Contact
Life:>10 6 operations
at rated load.
Configuration:
Channels
A0
through
A4 are configured as Remote
Position
A00
through
A04
with
respect to Sensor.
Curve
selection with 8229 present.
Channel
Selected
Data:Chnnl selected
present
in
BCD form on J9 connector.
WARNING
To prevent
shock
hazard,
turn
off
instrument and disconnect it from
AC
line power and all
t e s t
equip-
ment before
removing cover.
8229
Scanner Conversion
Option
Model DRC-91C/93C
Table
8229-2.
Model
8229 Scanner
or can be field installed at a
Conversion specifications
later date.
If field installation
is
required,
use
the
following
procedure.
1 .
Set the POWER switch to OFT and
disconnect the power cord from
the unit.
Remove the three top
panel screws and slide the panel
off.
Note on the calibration
cover the position of option
Slot
2 which
the
8229 will
occupy
2. Remove
the
four
screws that
secure the calibration cover to
its clips and remove the cover.
Remove
the
two
back
panel
mounting clips that secure the
J9 blank cover plate to the
interface
opening and remove
the plate.
3.
Plug the internal sensor lead
cable
into
the
8229
printed
circuit board
(FCB)
with the
locking tab configured properly.
Plug the 8229 PCB into Option
Slot 2 with the
component side
to the left, of the unit
as
viewed
from the front.
Thread
the 8229 internal cable along
the inside edge of the rear
panel so that it won't interfere
with the installation of the
calibration cover or top cover.
4. Position the 24 pin 8229 Scanner
connector
in
the J9 opening on
the back panel and secure it in
place using the screws provided.
8229.4
INSTALLATION
5 .
Disconnect the Input
C a r d
wiring
harness from the
A
Input Card by
The
8229
Scanner
Conversion
is
lifting the locking tab on the
factory installed if ordered with
Input Card connector and pulling
an DRC-91C Temperature Controller
on
the
body
of
the
wiring
8229-2
COPYRIGHT 12/87
LSCI
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