Transcript ProCal - Writing a Procedure (CM500 RCD)

ProEdit Procedure Management
Writing a Verification Procedure
For a Megger CM500
Combination Tester
- RCD Function
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
ProEdit ::
Writing a Procedure
Step 1
 Start ProEdit
 Select File  Procedure Builder Wizard  RCD Tester
ProCal ::
Writing a Procedure
Step 2
 Enter Manufacturer, Model Number and Version number
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.
ProCal ::
Writing a Procedure
Step 4
SECTION 2 : CURRENT MULTIPLIER TESTS
 Select the current multiplier tests using the tick boxes
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.
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.
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.
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
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
ProCal ::
Modifying a Procedure
Step 2
 The CM500 procedure will be listed, select the line and click Accept
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.
ProCal ::
Modifying a Procedure
Step 4
 Click the Show All button – a scrollable list will display all the
procedure tests
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