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TnP 3PLM
User Manual
Wavecom
4. (cont...) Once your TnP 3PLM is set up correctly, select either the 0° (Positive) or the 180° (Negative) Phase
to test. Both phases should be tested, and after the first test, you can select ‘Retest’ to test the other
phase.
5. When ready, press F3 to begin the test - the RCD will trip, and the time will be recorded in milliseconds.
6. TnP 3PLM testers will switch to battery power (if charged) and stay on, but will need to be Mains Powered
again to conduct further RCD tests.
7. You can now retest the other phase of the RCD, or simply print your tag and record your results.
RCD Ramp Testing
This test is designed to trip RCD devices using a ramping up current value, to determine the trip current of the
RCD device. This useful test allows the user to determine circuit leakage load/pre-loading of RCD circuit. This
can assist in determining nuisance tripping issues (RCD is too sensitive) or determining RCD performance if
suspected faulty or inconsistent in performance. The TnP 3PLM has a nominal leakage current of 2mA, which
should be added to the result of test.
E.g. if RCD tripped at 22mA, add 2mA to get a value of 24mA trip current.
To enter the RCD menu from Main Menu B, press the F3 button. Then, to set up a Ramp Test, press F2. Before
performing an RCD Ramp Test, the TnP 3PLM should be configured to ensure an accurate result.
Changing RCD Type:
Depending on the RCD, the RCD type needs to be selected from the options menu. These options change the
pass / fail values when performing RCD tests. Please make sure that you have the correct RCD type selected.
F1 - Sets RCD Type to Type 1
F2 - Sets RCD Type to Type 2
You will be promoted to enable or disable Portable RCD (PRCD) testing - unless you are testing a switchboard
RCD, turn PRCD on.
Conducting the Ramp Test
1. Complete a Visual Inspection. For details refer to the First Test section. If the device passed the Visual
Inspection, continue with the following instructions, if not, refer to the First Test section.
2. Navigate to Main Menu B, and press F3 to enter the RCD Menu, then press F2 to select Ramp Test
3. Press F2 to select your RCD Type, and turn Portable RCD testing on or off
4. Press F3 to begin the test - the TnP 3PLM will increase the current to the RCD until it trips, displaying the
current on screen.
5. TnP 3PLM testers will switch to battery power (if charged) and stay on, but will need to be Mains Powered
again to conduct further RCD tests.
6. You can now print your tag and record your results.