Wavecom TNT-EL Instruction Manual download pdf (Page 8)

To Change Test Voltage

To change the test voltages select the "change ins" from the options menu. Please refer to the special functions section of this

manual.

Please Note:

 In earlier models the Return/Enter Key may need to be pressed 3 times to change Voltages.

 The TnT-el will automatically default to 500VDC when restarted.

Integrated Tests

Supply Mains Test

The Supply Mains Test checks the polarity and connectivity of the mains supply by LED's. This test is also a part of all the

testing functions of this unit.

If the N-E (red) light is on and you need to conduct load/leakage tests DO NOT CONTINUE. If you are carrying

out standard Insulation and Earth Bond tests, it is generally safe to continue. This light will glow if a voltage

difference lies between the neutral and the earth, or if no earth is connected to the TnT-el supply. (If working

with a generator or inverter, this is most likely to occur and you may need to consult an electrician before

proceeding).

If both the A-E & A-N (green) lights are on but not the N-E (red), mains supply test is ok, continue to test.

If both of the N-E (red) & A-E (green) lights are on, consult an Electrician, as there is a fault with the Mains

Supply.

NCNT Test

(No Connection No Test)

The TnT appliance tester ensures that the Device Under Test (DUT) is plugged in and switched on. This test is also a part of all

of the testing functions of this unit.

This test function ensures that the Device Under Test (DUT) is plugged into the TnT appliance tester and that it is switched on. If

the DUT is not plugged in and the TnT appliance tester detects that no DUT is present, plug in the DUT to continue the test or

confirm „QUIT‟ to return to the main menu.

If for some reason the NCNT circuit does not detect the DUT but it is actually plugged in and turned on, the operator will need to

override the TnT appliance tester to continue the test.

To do this press F3

With an emphasis in the standard AS/NZ3760 for carrying out the live testing the TnT appliance tester will indicate for you to

check if the DUT is plugged in and switched on. If the DUT is not plugged in and/or recognised, it may require a live test

therefore making it necessary for the operator to carry out a full functional Leakage Test (TnT-el & TnT+ appliance tester

models only).

This function is to ensure that correct testing procedures are carried out in accordance with the Standard AS/NZ3760.

Note: When using 3-Phase adaptors the NCNT function will need to be over ridden by pressing the „OK‟ key prior to the TnT

appliance tester performing the assigned test. Some single Phase appliances controlled by contactors will require manual over

ride also. In some instances holding the „ON‟ button of the DUT will enable the NCNT function to work normally.

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Wavecom TNT-EL Instruction Manual Page 8