Section 6
OM6530-C1-00
19 November, 2019
6-9
6.2.8.
ZERO COEFFICIENT CALIBRATION
The Zero Coefficient Calibration is a stand-alone routine that is built in the 6530 to calibrate the
absolute value of the 100 kΩ protection resistor with the 100 MΩ traceable resistor. To execute
this process follow the steps below.
-
Reference Section 4.9.2.1.4.
-
Remove the 100 MΩ reference resistor and replace with a terminal 0 ohm link
between SOURCE AND INPUT.
-
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 Zero>
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 zero
ohm calibration may be entered using the numeric keypad ifs required (see Section
4.9.2.3.4).
-
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
<Zero Cal.>
function key.
Note: Ensure that the 0 ohm link 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 the protection resistor coefficient.
-
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.
Содержание 6530 Series
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