Australian made to comply with the requirements of the Standard AS/NZS 3760 REVISION 1.11 February 2005 Ph: (07) 3274 2466 Int: (+61) 7 3274 2466 www.nesco.com.au Email: admin@wavecom.com.au Ph: (08) 8331 8892 Int: (+61) 8 8331 8892 Email: sales@nesco.com.au www.wavecom.com.au Accessories Supplied (With the Range of TnT Portable Appliance Testers) · · · · · Portable Appliance Tester Instruction Manual Manufacturers Calibration Certificate IEC Lead Earth Lead with Alligator Clip Soft Carry Case Manufacturers Recommendations (For the Range of TnT Portable Appliance Testers) Calibration: The manufacturer recommends a routine calibration verification of readings for determining the accuracy of readings on a 12 Monthly basis. Page 2 Index Accessories Supplied Manufacturers Reccomendations Index 2 2 3 4 5 6 6 7 8 9-10 10 11 12 13 14 15 16 17 IMPORTANT INFORMATION: Safety Warning The TnT Portable Appliance Tester (Diagram) Competent Person Disclaimer & Limited Warranty TECHNICAL INFORMATION: Class 1 (Earthed Appliance) Construction Class 2 (D/Insulated) Construction Testing of Electrical Equipment To Change Test Voltage (250/500VDC Select) INTEGRATED TESTS: FIRST TEST: SUPPLY MAINS TEST NCNT TEST VISUAL INSPECTION TEST CHAPTER 1 ­ TnT Portable Appliance Tester Instructions: TnT Test Function Flow Chart EARTHED APPLIANCE TEST DOUBLE INSULATION TEST EXT LEAD TEST CHAPTER 2 - TnT-el Portable Appliance Tester Instructions: TnT-el Test Function Flow Chart TESTS Common to ALL MODELS LEAKAGE TEST CHAPTER 3 ­ TnT+ Portable Appliance Tester Instructions: TnT+ Test Function Flow Chart TESTS Common to ALL MODELS POWER TEST RCD TEST Specifications for the TnT, Tnt-el & TnT+ Optional Accessories Other Relevant Authorities 18 19 20-21 22 23 24-25 26-30 31 32 33 [Please note: Specific PAT Tests are noted in blue text] Page 3 Safety Warning ! When using any electrical appliance SAFETY must always be observed. Testing appliances is no exception and in fact MORE care must be taken to ensure personal safety is met. Although the TnT range of products has been designed to meet stringent requirements, no person can be completely protected against the consequences of the incorrect use of an electrical device. We advise that appliance testing should be conducted by a competent and suitably trained person. For maximum safety, always ensure that the following advice is followed; · · · · · · The equipment being tested is in good repair. All user instructions are followed. Double check power supply connections (LEDs). Always use specified fuses and protection devices. Do not use leads that require repair or are damaged. If you are unsure, call a Licensed Engineer/Electrician. Page 4 The TnT Portable Appliance Tester (Diagram) Display Test Function F1 These buttons are NOT IN USE & are reserved for future functions Test Function F2 Test Function F3 Return/Enter Button Supply Indicator Lights Power Lead IEC Socket Fuse Device Under Test (DUT) Socket [Diagram shown is a sample only and may not be exact to each specific model of TnT Appliance Tester] Page 5 Competent Person ! To ensure that all electrical equipment or devices that are used to perform specific tasks, are inspected and tested and tagged correctly, regulations require that a competent person such as a Licensed Electrician be employed to perform the required tests. A person competent to undertake Inspection and Testing of electrical equipment must therefore have: Knowledge and practical experience of electricity and its hazards. A clear understanding of precautions to avoid danger. The ability to recognise, at all times, whether it is safe for work to continue or not. The ability to carry out visual examinations of electrical equipment. The ability to distinguish between electrical equipment that is double insulated and equipment that is earthed as well as being able to identify the appropriate test for each type. 6. The competency to carry out the Earthing Continuity, Insulation Resistance or Leakage Test and RCD tests on electrical equipment safely. 7. The knowledge of how to use the relevant testing instruments, interpret and record the results for compliance with the Standard/Workplace requirements. 8. The knowledge to be able to correctly recommend the frequency of testing required. Due to the potential hazards of electrical testing all care must be taken. 1. 2. 3. 4. 5. Disclaimer LIMITED Warranty The Manufacturer warrants its products against defects in materials and workmanship for a period of 12 months from the date of purchase. During the warranty period, the manufacturer will repair (or at its option replace at no charge) the product that proves to be defective. This warranty does not apply if the product has been damaged by accident, abuse, misuse or missapplication or as a result of service or modification by anyone other than Electromate TnT. Electromate TnT product range of devices or its' manufacturer IS NOT RESPONSIBLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE BREACH OF ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING DAMAGE TO PROPERTY AND TO THE EXTENT PERMITTED BY LAW, DAMAGES FOR PERSONAL INJURY. The Distributors of this product cannot assume liability or responsibility for any loss or damage resulting from the use of this device. Electromate TnT manufacturer reserves the right to discontinue models, change specification, price or design, at any time without notice or obligation. Page 6 Technical Information CLASS 1 (Earthed Appliance) CONSTRUCTION (Single basic insulated and protectively earthed equipment) This type of product design provides two safety barriers between all live conductors at dangerous voltages and the equipment user. The provision of basic insulation between exposed metal parts and live parts is the first barrier to provide basic protection against electric shock. The second safety barrier is by the connection of exposed (accessible) conductive (metal) parts to the protective earthing conductor (earth wire) in the fixed wiring of the device/Installation. The protective earthing terminal of the equipment must be marked with the word "earth" or the symbol "E" or the symbol for Earth Terminal or Protective Conductor Terminal. 1 To perform this test a continuous earth loop must be made between the exposed conductive material (metal) and the TnT appliance tester. This is done by means of connecting the earth lead with the crocodile clip/probe attached to a GOOD earth point (paint & coatings will not provide effective connections) and the DUT (Device Under Test) plugged into the TnT appliance testers' DUT socket. [as shown in the above picture]. The Maximum allowable limit is 1.0 (ohm). Page 7 Technical Information Continued CLASS 2 (Double Insulated) CONSTRUCTION (Double insulated equipment) This method of construction employs two safety barriers comprising two layers of insulation between dangerous voltages and the user of the equipment. The first layer of insulation is formed around the live conductor and is termed `the Functional Insulation'. The second layer of insulation is termed `the Supplementary Insulation'. In Class II equipment, protection against electric shock does not rely on basic insulation only, but has additional supplementary insulation such as double insulation or reinforced insulation provided, there being no reliance on precautions in the fixed wiring of installation. Class II equipment is marked with the words "DOUBLE INSULATION" or the symbol 1M For double insulated under Safety Symbols: Note 1 ­ Double Insulation is insulation comprising both basic and supplementary insulation. Note 2 ­ Reinforced Insulation is a single insulation system with a degree of protection against electric shock, which is equivalent to double insulation. Page 8 Technical Information Continued 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 are 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' in the DUT may cause a failed test result. Applying 500V in this these s) 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. [Refer to page 13 for details - `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. Leakage Test: If there are any doubts with insulation testing of the equipment, the standard (AS/NZ3760 since 2001) allows for an alternative test method. A Leakage Test can be performed instead. (The TnT-el & TnT+ models are designed to perform these tests). NOTE: 10Amps MAXIMUM Resistive Load only (Standard TnT-el & TnT+ 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 (as per AS/NZ3760). Page 9 Technical Information Continued Testing of Electrical Equipment 3 Phase Testing: 3 Phase appliances can be tested by the TnT, TnT-el, TnT+ or the TnT-3PL appliance tester. This test is carried out by using the adaptor connection sockets. 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. [See `Optional Accessories' on page 18 for details - when ordering please state plug configuration of 3 phase plug. E.G. 5 pin Clipsal 56 series 20A]. CAUTION: Ensure that these adaptors are used only for appliance testing. To Change Test Voltage Procedure: (250/500 VDC Select - To Change the Insulation Test Voltage on all models) Step 1: Step 2: Hold down the Return/Enter Key Press the F2 Key (F2 function ­ Note screen flashes) For 250v ­ Press the F3 Key For 500v ­ Press the Return/Enter Key Step 3: Finish: The display will confirm the change and return to the Main Menu automatically. The desired voltage has now been selected. TO CHANGE VOLTAGE BACK, REFER TO STEP 1. Please Note: 1. In earlier models the Return/Enter Key may need to be pressed 3 times to change Voltages. 2. The TnT will automatically default to 500v when restarted. Page 10 Integrated Tests Information SUPPLY MAINS TEST The Supply Mains TEST checks the Polarity & Connectivity of the mains supply by LED's (see below). This test is also a part of all of the testing functions of this unit. A-N, A-E N-E 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 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. A-E A-N N-E A-E A-N Page 11 Integrated Tests Information 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 ...