
4-34 Input and Output Cards
UM4.6:CS6003 Original — December 1991
Step 9: Set the calibrator data switches 10 through 1 (labeled MUX
DATA BYTE 1 and MUX DATA BYTE 2) for zero percent of
span as shown in Table 4-20. Adjust the ZERO potentiometer
for channel 1 until the voltmeter reads 1.000 +
0.005 volts dc.
Table 4-20. Data Switch Settings for Analog Output Cards
Output Data Switches
(1)
Adjust-
ment
%
Span
Volts
Milliam-
peres
10 9 8 7 6 5 4 3 2 1
Numerical
Display
–25 0.0 0.0 0 0 0 0 0 0 0 0 0 0 0000
ZERO
(2)
0 1.0 4.0 0 0 1 1 0 0 1 0 0 0 0200
20 1.8 7.2 0 1 0 1 1 0 1 0 0 0 0360
40 2.6 10.4 1 0 0 0 0 0 1 0 0 0 0520
60 3.4 13.6 1 0 1 0 1 0 1 0 0 0 0680
80 4.2 16.8 1 1 0 1 0 0 1 0 0 0 0840
SPAN
(3)
100 5.0 20.0 1 1 1 1 1 0 1 0 0 0 1000
1. 0=OFF; 1=ON
2. ZERO adjustments use R5 for channel 1, R6 for channel 2, R7 for channel 3, and R8 for channel 4
3. SPAN adjustments use R23 for channel 1, R24 for channel 2, R25 for channel 3, and R26 for channel 4
Step 10: Set the calibrator data switches 10 through 1 for 100 percent
of span as shown in Table 4-20. Adjust the SPAN
potentiometer for channel 1 until the voltmeter reads 5.000
+
0.005 volts dc.
Step 11: Repeat steps 9 and 10 until no adjustment is required for
either step.
Step 12: Perform a linearity check for channel 1. Set the calibrator data
switches to the various percentages of span listed Table 4-20,
and observe the voltmeter. Verify that for each data value, the
meter shows the expected voltage level within +
.008 volts dc.
If any incorrect voltage appears, the analog output card
requires repair.
Step 13: Repeat steps 7 through 12 for analog output channels two
through four.
Step 14: Disconnect the voltmeter.
Step 15: Set the calibrator ON/OFF switch to OFF.
Step 16: Disconnect the umbilical cable and remove the analog output
card.
4.2.2 DM6460-Series Discrete Output Cards
All DM6460-Series Discrete Output Cards use the same card. The card
is available with one of two options: latched and momentary.
4
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