Keithley KPCI-3110, Руководство пользователя

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C-20 Systematic Problem Isolation KPCI-3110 and KPCI-3116 User’s Manual
10. Measure and compare the analog output voltages as indicated in Table C-3 :
a. Measure the voltages at analog outputs 0 and 1 with your DVM/DMM.
b. Compare the voltages you measured in step 10 a with the voltages you set via the analog-
output level control.
11. Using your mouse, slide the CH0 and CH1 level control buttons until the tiny displays at the
bottoms of the level controls read 5.0.
12. Measure and compare the analog output voltages as indicated in Table C-4 :
a. Measure the voltages at analog outputs 0 and 1 with your DVM/DMM.
b. Compare the voltages you measured in step 12 a with the voltages you set via the analog-
output level control.
13. Based on the measured voltages in step 10 and step 12 , take action as follows:
•
If the voltages measured with the DVM/DMM do not agree with the level control set-
tings, then there is an apparent problem with the analog output part of your board. Stop
here, and return to the problem isolation step in
“Problem isolation Scheme F: the board,”
that asked you to perform the Analog output hardware test.
• If the voltages measured with the DVM/DMM agree with level control settings, then the
analog outputs are working satisfactorily. Stop here, and return to the problem isolation
step in
“Problem isolation Scheme F: the board,” that asked you to perform the Analog
output hardware test.
Table C-3
Test connections and correct readings for zero-voltage analog output,
using an STP-3110
screw terminal accessory connected to J1.
To test this
analog
output…
…connect the DVM or DMM to these
terminals on an STP-3110
accessory:
If board works correctly, the
following voltages should agree:
Analog
output screw
terminal
Analog-ground screw
terminal Level control
setting Voltage reading at
DVM or DMM
Analog output
0+ [pin 5] TB41 TB50 [pin 26] 0.0V 0.0V
Analog output
1+ [pin 4] TB43 0.0V 0.0V
Table C-4
Test connections and correct readings for mid-range analog output, using an STP-3110
screw terminal accessory connected to the J1 connector
To test this
analog
output…
…connect the DVM or DMM to these
terminals on an STP-3110 accessory: If board works correctly, the
following voltages should agree:
Analog
output screw
terminal
Analog-ground screw
terminal Level control
setting Voltage reading at
DVM or DMM
Analog output
0+ [pin 5] TB41 TB50 [pin 26] 5.0V 5.0V
Analog output
1+ [pin 4] TB43 5.0V 5.0V