1. ProEdit Procedure Management Writing a Verification Procedure For a Megger CM500 Combination Tester - RCD Function

2. ProEdit :: Writing a Procedure Preparing to write a procedure  Before beginning the write the procedure the specifications for the instrument are required – these can be found from the following sources :  Instrument manufacturers handbook  Manufacturers web site  Catalogues such as R.S., Farnell or other instrument resellers

3. ProEdit :: Writing a Procedure Step 1  Start ProEdit  Select File  Procedure Builder Wizard  RCD Tester

4. ProCal :: Writing a Procedure Step 2  Enter Manufacturer, Model Number and Version number

5. ProCal :: Writing a Procedure Step 3 SECTION 1 : TRIP CURRENT TESTS  Select the required current values using the tick boxes (Use the select all button to easily tick all boxes)  Enter the % of Reading and ± Absolute values from the specifications. Note : Many instruments often specify a number of counts or digits. To convert this into an absolute value first determine the value of the last digit (resolution). For example the absolute value for the CM500 with a spec. of ± 2 digits and a display resolution 0.1 ohms, is 2x0.1R = 0.2R.

6. ProCal :: Writing a Procedure Step 4 SECTION 2 : CURRENT MULTIPLIER TESTS  Select the current multiplier tests using the tick boxes

7. ProCal :: Writing a Procedure Step 5 SECTION 3 : TRIP TIME TESTS  Select the required trip time tests required using the tick boxes  Enter the % of Reading, Range and ± Absolute values from the specifications.

8. ProCal :: Writing a Procedure Step 6 SECTION 6 : ADDITIONAL CHECKS  Select from the following type tests Mains Voltage (requires mains measurement accuracy %) P-E / P-N Indicator Check Display & Controls Check ± 180° Check Tests are performed manually and either pass or fail selected on screen.

9. ProCal :: Writing a Procedure Step 7 The Use Uncertainty Statements option will automatically select the correct uncertainty statements for the procedure, based on the functions selected.

10. ProCal :: Writing a Procedure Step 8 Click on the Build Procedure button to proceed When this message appears click No to close the screen or Yes to create another procedure

11. ProCal :: Viewing a Procedure Step 1 Now the procedure has been created, it can be viewed using ProEdit.  Select File > Edit An Existing Procedure  Select Model Number and enter CM500, then click Start Search

12. ProCal :: Modifying a Procedure Step 2  The CM500 procedure will be listed, select the line and click Accept

13. ProCal :: Modifying a Procedure Step 3  The procedure instrument information screen will be displayed – click Next to continue.  Uncertainty statements & traceable instruments screen will be displayed – click Next to continue.

14. ProCal :: Modifying a Procedure Step 4  Click the Show All button – a scrollable list will display all the procedure tests

15. ProCal :: Modifying a Procedure Step 5  Test information can be viewed and edited if required Note : The accuracy automatically recalculates based on the change of test value