Section 6
OM6530-C1-00
19 November, 2019
6-7
-
Connect the 100 MΩ reference resistor between the SOURCE and INPUT
terminals of the instrument.
-
Select the SOFCAL CALIBRATE MENU by pressing the
<Calibrate>
function
key when in the Sofcal Menu
-
Press the
<Ref Vals>
function key.
-
Press the
<Ref Res>
function key.
-
Press the
<Edit>
function key.
-
Using the numeric keys enter the new value of the reference resistor and its serial
number
-
New values for variance, standard deviation and sample size criteria for the 2700
pF capacitor may be entered using the numeric keypad if required (see Section
4.9.2.3.3)
-
Repeat this process for the 270 pF and 27 pF capacitors on XR and XPR Models.
-
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
<Cap Cal.>
function key.
Note: Ensure that the 100 MΩ reference resistor is connected. Press the <Calc> 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.
-
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.
6.2.7.
THRESHOLD CALIBRATION
The Threshold 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.
Содержание 6530 Series
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