The Formula window of ProEdit allows the user to perform many powerful functions, one such feature is performing a manual average of the previous tests


When controlling a multimeter over an interface ProCal can perform this automatically, however when calibrating by hand the average of previous tests can be dynamically calculated.


In the below example Test 4 will take the average of Tests 1 through 3 and the current value (i.e. the average of 4 tests)


  1. Create a new test of the test point that you wish to create an average of, for example 10V DC
  2. Copy the test 4 times so your procedure now has 4 new tests
  3. Set the first 3 test points to 'Do Not Print Test' in the PRINT tab
  4. In the 4th test, make sure that the print type is set to 'Always Print Test'
  5. In the 'ADVANCED' tab of the 4th test, enter the following formula: X=X+T1+T2+T3/4
  6. At run time, take the measurements as normal. When you arrive at the 4th test, you will notice that the recorded value will dynamically update depending on what is entered
  7. ProCal has stored all of the previous samples so during an audit you can display the previous samples if required.


** PLEASE NOTE THAT UNCERTAINTY CALCULATIONS WILL NOT TAKE THE STANDARD DEVIATION OF SAMPLES INTO ACCOUNT USING THIS METHOD **