Fluke 5790B Service Manual page 64

5790B
Service Manual
3-26
5) When the step is completed, set the 5730A to standby.
6) Repeat the previous steps 1 through 5 for the other 22 mV
range point(s).
b. Calibrate the 7 mV range as follows:
1) Lock the Product in the 22 mV range. The 792A may be
left attached, although it is not used.
2) Apply the requested voltage and frequency. When the
reading on the Product Measurement Display settles,
record the reading.
3) Push the "Continue" softkey. This automatically selects the
7 mV range.
4) Enter the value you recorded in step 2 and push the
ENTER softkey.
5) When the step is completed, set the 5730A to standby.
6) Repeat the previous steps 1 through 5 for the other 7 mV
range point(s).
c. Calibrate the 2.2 mV range as follows:
1) Lock the Product in the 7 mV range. The 792A may be left
attached, although it is not used.
2) Apply the requested voltage and frequency. When the
reading on the Product Measurement Display settles,
record the reading.
3) Push the "Continue" softkey. This automatically selects the
2.2 mV range.
4) Enter the value you recorded in step 2 and push the
ENTER softkey.
5) When the step is completed, set the 5730A to standby.
6) Repeat the previous steps 1 through 5 for the other 2.2 mV
range point(s).
8. When you finish the calibration, the display returns to the calibration
screen. The "Save Cal Constants" field indicates Needed.
9. Nothing has been saved in nonvolatile memory yet. To make calibration
valid, you need to store the constants. Select "Cal Store" then enter the
passcode. The "Cal Store" field changes from Secured to Open.
10. Select "Save Cal constants", the message indicates "Save Operation
Complete".
11. Push OK and the "Save Cal Constant" field changes to "Not Needed".
12. Push "Cal Store" to change "Cal Store" to "Secured". The Main
Adjustment Date also changes to the current date. Adjustment date can
be seen by selecting Setup Menu>Calibration>View/Update Cal Dates.