Wavecom TNT-EL Portable Appliance Tester with Leakage test
The new Generation 4 TNT-EL manufactured by Wavecom is an easy to operate appliance tester that offers great value as it’s one of the few testers in its price range that contains leakage testing. This Australian made entry level tester tests to the AS/NZS 3760 standard.
The Generation 4 Wavecom TNT-EL is an ideal choice for anyone that needs a basic and user friendly appliance tester. With the Wavecom TNT-EL it’s easy to navigate through the various tests you’ll be required to perform and it is as simple as pressing ‘F1’ for Class 1 tests and ‘F2’ for Class 2 tests. The Wavecom TNT-EL is also capable of conducting Leakage Current testing – rare for a tester in this price range. Another additional benefit is its ability to test sensitive electronic equipment safely that cannot be tested with a standard insulation tester. Similar to the other Gen 4 models, It includes Wavecom’s new Meter Mode function which display’s volts, amps, true power and reactive power of an individual appliance.
Wavecom TNT-EL Features:
- Wavecom TNT-EL displays actual test readings
- PASS/FAIL indicator
- One button testing
- Meter Mode function
- Impact resistant and flame retardant casing
- Built-in carry handle
- Processor firmware factory updateable
- Fully compliant to the AS/NZS3760:2010 standard
Warranty: 2 Years The Wavecom TNT-EL is supplied with: Carry Case, 240V Extension Lead Adaptor, Earth Bond Lead, Manual & Calibration Certificate
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 TnT Range of appliance testers, these concerns are alleviated. The TnT 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 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-el appliance tester.
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 – Series are designed to perform these tests). NOTE: 10Amps MAXIMUM Resistive Load only (Standard TNT – 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-el 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 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. Please note: (The TnT cannot perform 3 Phase Leakage test. Contact Rapid-Tech Equipment for the appropriate tester).