TNT – RCD, + Test Function Flow Chart

Note: Main menu A is common to all models

Main menu B

F1 Class 1 Test (Earth Leakage)
F2 D/Ins Leakage Test
F3 RCD Appliance
Leakage Test

F1 Earthed Leakage Test

Mains Supply Test
NCNT Test
Earth Bond Test
Earth Leakage (5mA)
Results Summary

(TnT RCD

F2 RCD

Test

Model)

Time Test

D/Ins Leakage Test

Mains Supply Test
NCNT Test
Earth Leakage (1mA)
Results Summary

Ramp Test

F3 Lead Test

(Ext Lead Test)

Mains Supply Test
Earth Bond Test
Insulation Test
Continuity & Polarity Test
Results Summary

RCD Appliance Leakage Test

Mains Supply Test
NCNT Test
Earth Bond Test
Earth Leakage (5mA)
Results Summary

Tests Common To All Models - Main menu A

Earthed Appliance Test (refer to TnT)

Double Insulation Test (refer to TnT)

Lead Test (Ext Lead Test) (refer to TnT)

Leakage / Run Test

The Leakage Test is an alternate method to perform insulation resistance tests. Leakage testing is a major function of the TNT - Series

Please Note: A Visual Inspection test must be carried out before any others (refer to First Test Section)

This test determines errors of leakage not otherwise detected in a normal insulation test. If there are any doubts with insulation testing of the equipment, the Standard (AS/NZS 3760 since 2001) allows for a leakage test to be carried out instead. The TNT - Series appliance testers have been designed to perform these tests. The Leakage Test applies power to the Device Under Test and measures any imbalance or leakage current. The leakage is tested to the limits of the class types specified in the Standard AS/NZS 3760 i.e. Class 1 = > 5mA as Fail.

The Limit of imbalance measured on the TnT-RCD, + appliance tester will read well in excess of the limits set in mA. However, should the supply circuit be protected by an RCD this device will trip anywhere between 10 to 30mA and trip the mains supply switch OFF.

Procedure:

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.
Press the return key to view Main menu B.
Press a function key (as follows) to start the test/s. Press either F1, F2 or F3 depending on the type of device you are testing). F1 = Earth Leakage, limit set to MAX then 5mA fail. F2 = D/insulated leakage and ext. leads, limit set to MAX then 5mA fail. F3 = RCD leakage.

CONFIRM IF SAFE TO CONTINUE? OK/QUIT. IF OK, DEVICE WILL POWER SWITCH ON. ENSURE ITEM AND ENVIRONMENT FOR SAFE OPERATION!

Results are displayed, read and record appropriately.
Unplug DUT.
Press Enter until you return to the main menu.

If the result was a pass - Tag with the appropriate tag including "next test due" date and "return to service".

If the result was a fail - Tag with a DANGER TAG and remove from service.

The Leakage Test allows the user to operate the appliance in normal operation conditions and measure its Operating Leakage current. The displayed parameter is mA. The mA Display Range 0.0 to 22.0 mA.

A predefined value for individual class types is programmed into your TNT - Series appliance testers. These limits are set according to the AS/NZ3760. Should these values change in future it can be simply altered in firmware. A Pass / Fail will also be displayed at the end of the test.

The run time period can be adjusted (by 5sec increments). The value can be changed by selecting the leakage test time in the options menu. See the special functions section of the manual for more details. The factory default setting is 20sec. The value for the leakage runtime is also used for the power test (plus models only).

Caution: Before operating ensure the equipment is firmly secured to eliminate the possibility of causing injury or damage. This function will power the Unit on, Please make sure the drills or any blades of any rotating devices have been removed prior to any testing and have clearance from body or object. Appliances may jump off benches and may need to be secured by clamping them, or they may cause serious damage if not secured properly.

KILL SWITCH

	To stop operation press the return/enter key at any time. The unit will power down after 20 seconds as factory default

Caution: This test turns the Equipment ON. The power / leakage test can handle up to 10 Amp (Resistive) Load MAX. Exceeding this value will blow the external M205 ceramic fuse. Care should be taken when testing inductive loads (i.e. AC motors) with large start up currents.

If 10A HBC fuse is blown the appliance will not operate in Power test or Leakage test modes. Replace fuse only with M20 10A HBC fuses. Any other fuse voids warranty and manufacturers design.

Caution: DO NOT OPEN TnT - Series case as there are no serviceable parts inside and you can void your Warranty