
4-8 Input and Output Card
UM4.6:CS6003 Original — December 1991
Step 12: To check the channel for linearity, set the voltage source for
various percentages of span listed in Table 4-3 or Table 4-4.
For each voltage setting the calibrator numerical display
should show the corresponding display +
0004 if the card is
the 1 to 5 volt dc type or +
0003 if the card is the 0 to 10 volt
dc type. If the calibrator numerical display is incorrect, the
isolated analog input card requires repair.
Table 4-3. Test Voltages for Isolated 1-5 Volt Input Card
Adjustment % Span Input in Volts Numerical Display
–25 0.000 0000
ZERO
(1)
0.020 0016
0 1.000 0800
20 1.800 1440
40 2.600 2080
60 3.400 2720
80 4.200 3360
SPAN
(2)
100 5.000 4000
103 5.119 4095
1. Zero adjustment
2. Span adjustment
Table 4-4. Test Voltages for Isolated 0-10 Volt Input Card
Adjustment % Span Input in Volts Numerical Display
0 0.000 0000
ZERO
(1)
0.050 0016
20 2.000 0640
40 4.000 1280
60 6.000 1920
80 8.000 2560
SPAN
(2)
100 10.000 3200
1. ZERO adjustments:
OLD STYLE: use R22 for channel 1, R26 for channel 2, R28 for channel 3, and R32 for
channel 4
NEW STYLE: use R16 for channel 1, R17 for channel 2, R18 for channel 3, and R19 for
channel 4
2. SPAN adjustments:
OLD STYLE: use R15 for channel 1, R16 for channel 2, R17 for channel 3, and R18 for
channel 4
NEW STYLE: use R33 for channel 1, R41 for channel 2, R44 for channel 3, and R52 for
channel 4
Step 13: Repeat steps 7 through 12 for channels two through four.
Step 14: Disconnect the voltage source.
4
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