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12. Press CHNG SIGN on the 5440B. Set the 845A( ) to the 10 mV range. Set the
5700A to -200 V, OPERATE. Repeat the nulling procedure of step 9, recording
the 5700A Error Display indication opposite -200 V in Table 3-2. Set the 5700A
to STANDBY.
13. Set the 720A dials to 0.6000000. Set the 5700A to -600 V, OPERATE. Set the
845A( ) to the 10 mV range. Repeat the nulling procedure of step 9, recording the
5700A Error Display indication opposite -600 V in Table 3-2. Set the 5700A to
STANDBY.
14. Set the 720A dials to 1.0000000. Set the 5700A to -1000 V, OPERATE. Set the
845A( ) to the 10 mV range. Repeat the nulling procedure of step 9, recording the
5700A Error Display indication opposite -1000 V in Table 3-2. Set the 5700A to
STANDBY.
15. Set the 752A MODE switch to 100 V.
16. Repeat steps 10 through 14 for 5700A outputs of -60, -20, +20, and +60 V DC
entering the Error Display indications for each in Table 3-2.
17. Set the 752A MODE switch to 10 V.
18. Repeat steps 10 through 14 for 5700A outputs of +6, +2, -2, and -6 V DC
entering the Error Display indications for each in Table 3-2.
19. Disconnect the 720A and 5440B from the 752A. Make the connections shown in
Figure 3-4.
5440B
845A ( )
Figure 3-4. DC Source Characterization Setup, Part 3
If the 845A( ) is not grounded through the power cord, a connection must
be made to the 5440B ground as shown.
20. Set the 5700A to 6 V, OPERATE. Edit the 5700A output until the Error Display
matches that recorded in Table 3-2 for a +6 V output. Set the 5440B to 6 V,
OPERATE. Set the 845A( ) range to 10 mV. Set the 845A( ) to OPR. Reduce the
845A( ) range switch setting until the largest on-scale reading is obtained. Adjust
Note
Calibration and Verification
Periodic Calibration
5700A
752A
elu019.eps
3
3-11
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