Measurement Computing Data Translation DT3034, User Manual

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Chapter 8
132
Using the DT3034 Calibration Utility
Once the DT3034 Calibration Utility is running and you have connected the required
calibration signals to the DT740 screw terminal panel, do the following to calibrate the analog
output subsystem on the DT3034 board:
1. From the main menu of the DT3034 Calibration Utility, click Configure , and then Board .
2. Select the name of the DT3034 board to configure from the combo box, and then click OK .
3. From the main menu of the DT3034 Calibration Utility, click Calibrate , and then D/A .
4. In the Meter Selection box, select the meter that you are using ( Internal or External ;
Internal is the default).
5. In the Mode box, select Calibrate .
6. In the D/A box, select DAC 0 .
7. In the Voltages box, select

–9.3750 .
8. Physically adjust potentiometer R15 (labelled 0Z) on the DT3034 board until the display
reads
– 9.3750 V (within 0.001 V). Figure 41 shows the location of this potentiometer.
Figure 41: Location of Potentiometers R12 to R15 on the DT3034 Board
9.
In the Voltages box, select

+9.3750
.
10. Physically adjust potentiometer R14 (labelled 0G) on the DT3034 board until the display
reads +9.3750 V (within 0.001 V).
Figure 41 shows the location of this potentiometer.
11. In the D/A box, select DAC 1 .
12.
In the Voltages box, select

–9.3750
.
13. Physically adjust potentiometer R13 (labelled 1Z) on the DT3034 board until the display
reads
–
9.3750 V (within 0.001 V). Figure 41 shows the location of this potentiometer.
14. In the Voltages box, select

+9.3750 .
15. Physically adjust potentiometer R12 (labelled 1G) on the DT3034 board until the display
reads +9.3750 V (within 0.001 V).
Figure 41 shows the location of this potentiometer.
Potentiometers for the DACs
R12 -1G
R13 -
1Z
R14 - 0G
R15 -
0Z