User manual

Wavecom Instruments Portable Appliance Testers Instruction Manual

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:

1. 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.

2. Press the return key to view Main menu B.

3. 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!

4. Results are displayed, read and record appropriately.

5. Unplug DUT.

6. 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).