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Model DRC-91C/93C
9317C/9318C Input
Cards
5 .
Current
R a n g e
1 ,
V a l u e
6-
switch,
CAL
1 .
The display
Configure the
10K
(9317C) or
will
indicate
460.
for ap-
100K
(9318C)
resistor
to
proximately
30
seconds and then
simulate the sensor.
Enable
a
0 .
indicating
that
the
CAL
4
and monitor the unit's
calibration of
the
card
is
display.
The display should
complete.
Disable
CAL
1
and
indicate the number
106,
for
then
CAL
8 .
approximately
30
seconds and
then display
0 .
indicating the
10.
Set
Point
D/A
Calibration
-
A
end
of
the
calibration.
special set point calibration
Disable
CAL
4
and Continue.
is required for a DRC-91C or
DRC-93C with two 9317C/9318C
6 .
Current R a n g e
1 ,
V a l u e
60
and
Input
Cards
or
if
the
Current
Range
2 ,
V a l u e
6-
9317C/9318C
is the only Input
Substitute a
1K (9317C)
or 10K
card.
Since the set point
(9318C)
resistor
for
the
voltage is related to the set
previous resistor and re-enable
point
resistance,
and
is
CAL
4.
The
display
will
determined with the individual
display the number
1 6 0 .
for
card
calibration
constants,
approximately
30
seconds, then
there is no way to enter a set
the number
206.
for another
30
point that results in a pre-
seconds and
when
complete, a
0 ,
determined value for the set
will be displayed.
Disable CAL
point.
The Internal ID Switch
4
and continue.
(S7 on the Main Board) is used
in
the calibration.
Note the
7 .
Current
Range
2, V a l u e 60
and
position of the Internal ID
Current
Range
3,
V a l u e
6-
switches
before
proceeding.
Substitute a
100
o h m (9317C) or
Attach the plus and minus leads
1K
(9318CO resistor for the
of the DVM to
TP25(SP V)
and
previous resistor and enable
TP1(GND(2s) )
respectively of
CAL
3.
The
display
will
the
Calibration
and
Service
indicate
260.
for approximately
Card.
Make switch
7
CLOSED
30
seconds, then
306.
for
(ON).
This forces the unit to
another
30
seconds and finally
output a set point of
0
volts.
a
0 ,
Disable
CAL
3
and
Adjust
the
SP
ZERO
ADJ
continue.
trimpot until the DVM
reads as
close
to
zero
as
possible.
8 .
Current R a n g e
3, V a l u e 60
and
Turn
ON
switch
6
of
the
Current
Range
4,
V a l u e
6-
Internal ID.
This forces the
Substitute a
10
ohm (9317C) or
unit to output a set point of-
100
o h m (9318C) resistor for
2 . 7 volts.
Adjust the SP
SPAN
the
previous
resistor
and
ADJ trimpot until the DVM reads
enable
CAL
2 .
The display will
as close to
-2.7000
volts as
indicate
360.
then 406. with
possible.
This
procedure
each
t h e
period
being
ap-
should be done until the
0
and
proximately
30
seconds.
When
- 2 . 7
readings are as close as
the
0 .
appears, disable
CAL
2
possible
to
the
calibration
and continue.
values.
Before returning to
normal
operation,
make
sure
9.
Current
R a n g e
4,
V a l u e
60-
switches
7
and
6
of
the
Finally substitute the
1 o h m
Internal ID are OPEN (OFF)
.
(9317C) or
10
ohm
(9318C)
resistor
for
the
previous
11.
Replace the calibration cover
resistor and enable the last
and then the top cover.
COPYRIGHT 12/87
LSCI
9 3 17
C/ 9
3
18 C-7
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