Section 6
OM6530-C1-00
19 November, 2019
6-6
-
New values for variance, standard deviation and sample size criteria for the 2700
pF capacitor may be entered using the numeric keypad ifs required (see Section
4.9.2.3.3)
-
Repeat this process for the 270 pF and 27 pF capacitors, as well as the 1.0 V and
0.1 V thresholds.
-
Press the
<Ok>
key to accept/store the new values.
-
Press the
<Cal Date>
function key.
-
Press the
<Edit>
function key to edit/re-enter the new calibration date.
-
Press the
<Ok>
key to accept the new calibration date.
-
Press the
<PREVIOUS>
key to exit back to the Sofcal Calibrate Menu.
-
Press the
<PREVIOUS>
key to exit back to the Sofcal Calibrate Menu (top).
-
Press the
<Utilites>
function key.
-
Press the
<Auto Cal.>
function key.
-
The 6530 will proceed to calibrate all three capacitor and the two thresholds.
Note: Ensure that the 100 MΩ reference resistor is connected. Press the <Auto Cal>
key to start the automatic capacitor calibration sequence.
Note: When the calibration sequence is complete the instrument will prompt with
the new calibration coefficient in the display window.
-
The automated calibration sequence will run each measurement until it has satisfied
variance and standard deviation requirements for the sample size of each test.
-
If the requirements have not been met within the maximum retries the test is
automatically stopped.
-
If the test completes fully then acceptable results have been achieved. Press the
<Save>
key to save the results. This will update all capacitor coefficients and
threshold coefficients.
-
If the results are not acceptable then, you will need to return to the
<Reference>
Menu and adjust the test criteria to allow either more retries or a wider standard
deviation/variance for the failed test.
-
Press the
<PREVIOUS>
key to exit to the Sofcal Calibrate Menu.
6.2.6.
CAPACITOR CALIBRATION
The Capacitor Calibration is a series of routines that are built in the 6530 to calibrate each of the
three capacitors individually with the 100 MΩ traceable resistor. To execute this process follow
the steps below.
NOTE: This operation DOES change the coefficients and voids the previous calibration,
both resistance and current. Upon completion the 6530 will have to verified across the
operation range.
-
Reference Section 4.9.2.1.2.
