Wavecom TnT+M Portable Appliance Tester with RCD Testing & Memory

The Wavecom TnT+M has a multitude of advanced features, including the ability to test trip time and trip current on RCD’s, power measurement in kilowatts (kW) or volt-amperes (VA), earth leakage testing and a built in memory, allowing storage of up to 40,000 test results, which can be site specific. The Wavecom TnT+M is designed and made in Australia to AS/NZS 3760 standards and is supplied complete with a calibration certificate.

Wavecom TnT+M Features:

• 500v/250v insulation test
• MeterMode
• ClassI/ClassII
•  Extension Lead Test
•  Leakage test
•  RCD testing
•  Mains supply test
•  Power Measurement
•  Data connectivity with serial and USB ports
• 2 way data communication
•  Direct tag printer connectivity
•  includes keyboard via PS/2 port
•  Tester rated @ 10Amp operation for load test
•  5000 item memory
• 24 month warranty (conditions apply)
•  12 month Calibration Certificate.
•  WinPATS Base software
• 1 data base
•  1000 records.

Testing of Electrical Equipment

Many testing personnel have some reservations in testing sensitive, electronic equipment using a 500V DC insulation test. There is a perceived fear of causing internal damage from over voltage. With the introduction on the Wavecom TnT+M Range of appliance testers, these concerns are alleviated.

The Wavecom TnT+M range of electrical portable appliance testers is safe to test electronic equipment as the tests are carried from Active-Neutral (shorted by a relay inside the tester) to Earth. No dangerous voltages pass through in this mode to the internal components of the DUT (Device Under Test). If these tests are done using an Insulation Tester only and the user tests Active to Neutral, this would be a cause of potential damage, this is why the TnT + M product range is far safer to use.

Some changes may be required in certain configurations where fitted surge protection devices (MOV’s) in the DUT may cause a failed test result. Applying 500V in this these situations can cause the surge protection devices to trip, therefore conducting the applied voltage to earth, thus showing a failure of insulation. In these instances the test voltage should be changed to 250V then retest. If DUT still fails, check with the DUT Operators Manual or an electrician. [for details see – ‘Double Insulation Test’ 250/500VDC to change test voltage].

Under these circumstances, it would be difficult for any damage to occur to either the surge protection device or the DUT, as there is insufficient current generated by the TnT+ M appliance tester.

Leakage Test:

If there are any doubts with insulation testing of the equipment, the standard (AS/NZ3760) allows for an alternative test method. A Leakage Test can be performed instead. (The TnT + M Series are designed to perform these tests).

NOTE: 10Amps MAXIMUM Resistive Load only (Standard TNT + M Series units).

A Leakage Test applies power to the Device Under Test (DUT) and measures the imbalance of leakage current from the DUT between the active and neutral conductors. The leakage is tested to the limits specified in the standard and a Pass/Fail result as well as a digital reading is provided to ensure that the user gains as much information as necessary.

Earth Continuity Test:

The TnT+ M conducts earth continuity tests at Approx. 200mA. Continuity tests at higher currents are not required and are not recommended on certain equipment as this can cause severe damage or premature failure to the DUT under test (as per AS/NZ3760).

3 Phase Testing: * (Note Optional Adaptor is Required)

3 Phase appliances can be tested by the TnT +M series appliance testers. This test is carried out by using the adaptor connection socket. As the insulation tests are from Phase to Earth, only a 500V insulation test is required. These adaptors can be made by your electrician or purchased as an accessory. [See ‘Optional Accessories’ for details – when ordering please state plug configuration of 3 phase plug.] Please note: (The TnT+M cannot perform 3 Phase Leakage test. Contact MyMeter for the appropriate tester)