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All Models
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- Series 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 – Series appliance testers ensure that the appliance 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 appliance is plugged into the TnT appliance tester and that it is switched on. If the device is not plugged in and the TnT appliance tester detects that no device is present, plug in to continue the test or confirm ‘QUIT’ to return to the main menu.
If for some reason the NCNT circuit does not detect the device but it is actually plugged in and turned on, the operator will need to override the NCNT function.
To do this Over Ride Press F3
With an emphasis in the Standard AS/NZ3760 for carrying out the live testing the TnT - Series appliance testers will indicate for you to check if the device is plugged in and switched on. If the device 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 (Available on all models of TnT – Series).
This function is to ensure that correct testing procedures are carried out in accordance with the Standard AS/NZ3760.
*Optional
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 also require manual over ride. In some instances holding the ‘ON’ button will enable the NCNT function to work normally.
Visual Inspection (First Test)
VISUAL INSPECTION IS TO OCCUR BEFORE ANY OTHER TEST IS CARRIED OUT BEFORE USING ANY OF THE RANGE OF TnT APPLIANCE TESTERS
- There is no damage or component defects to the accessories, plugs, outlet sockets or connectors (physical).
- There are no cracks &/or abrasions.
- There are no exposed inner cores or conductors (flexible) and the supply cords are not twisted or distorted.
- Any Fuse / Over load protection components (if fitted) are checked.
- All labels, markings and warning indicators (of the maximum load to be connected to the device) are legible and intact.
- The insulation is not damaged in any way i.e. melted, cuts or abrasions. There are no iron filings in the insulation. There is no insulation tape on the lead.
- Any flexible cords and/or leads are effectively anchored (glands and grommets intact).
- All covers or guards are in place and secure as intended by the supplier/manufacturer.
- All safety devices and systems are in good working order. (i.e. overload latches & buttons).
- No dust &/or dirt obstructs any exhausts or ventilation outlets.
- All controls are working properly and are secure and aligned.
Important: If result is a FAIL!!
If any Equipment FAILS any of the above, it should be deemed to have FAILED the Visual Test, and therefore no other tests need be performed. If this is the case the Equipment should be tagged with a DANGER TAG and removed from service. It is recommended by the manufacturer and distributor of this product that it SHOULD NOT BE RETURNED TO SERVICE. To do so would be considered unsafe.
