PORTABLE APPLIANCE TESTERS MEGGER® PAT32 • Wide applications, including the testing of Information Technology (IT) equipment • Easy to use – with range sensitive passbands displayed • Analogue/Digital display – accurate digital readings and rapid response analogue display highlighting fluctuations Portable Appliance Tester DESCRIPTION The MEGGER® PAT32 Portable Appliance Tester will perform the basic electrical safety tests required for portable appliances and equipment. It can be used to test Information Technology (IT) equipment, domestic appliances, industrial appliances and power tools. It performs seven tests on an appliance: • Circuit test •Fuse check • Earth continuity test • 10 A Earth Bond • 25 A Earth Bond • Insulation test • Extension leads (ELT1 required) The PAT32 will test appliances and tools rated at 240 V and 110 V a.c. since it is fitted with both BS 1363 and BS 4343/CEE17 appliance test sockets. The tests are effected by pressing the relevant test switch. The readings from each test are shown on a unique analogue/digital display. The scales for Earth Bond and Insulation are marked with pass bands. This provides a rapid indication of a test pass or failure and allows proper test results to be kept. These records are necessary as part of the appliance’s safety monitoring programme. The instrument is robust, reliable and constructed in a strong plastic case with a moulded carrying handle and a detachable lid. Simple diagrammatic instructions are attached to the inside of the lid for quick reference. The ELT1 accessory allows extension leads both 110 V, 240 V and IEC mains leads to be tested. It performs Lead Polarity, Earth Bond and Insulation Tests. TEST SEQUENCE The tests should be performed in the correct order – starting with the CIRCUIT test. This applies a low voltage across the appliance and checks the d.c. resistance, live to neutral ensuring the relevance of subsequent tests. FUSE CHECK can be used to check any suspect fuse by placing it on the contacts. The EARTH CONTINUITY test is a low current test which is used where a higher current Earth Bond test may cause damage to the appliance. The EARTH BOND test is used for earthed or Class I appliances only and is designed to test the earth lead continuity and the earth bonding to the metal casing of an appliance. The crocodile clip lead supplied with the instrument is connected between the EARTH BOND terminal and the appliance’s casing. A choice of two test current levels is provided, 25 A and 10 A. The latter is for use on appliances with light duty cables. The final test is an insulation test required for both earthed and double insulated appliances. For earthed appliances, a test voltage of 500 V d.c. is established between the mains supply plug live and neutral pins joined together and the earth pin. No additional connection is required. For double insulated appliances, the test voltage is established between the mains supply plug live and neutral pins joined together and earth (which, in this case, is taken to the crocodile clip test lead attached to the EARTH BOND terminal). The clip is attached to the case of the appliance and the test is then performed. APPLICATIONS The PAT32 will check the electrical safety of the earthed appliances (BS and IEC Safety Class I) and double insulated appliances (BS and IEC Safety Class II), symbol . Spheres of use for the PAT32 are: • Periodic tests of equipment used in factories, offices, local education authorities, hospitals, etc. • Routine tests before and after hiring electrical equipment. • Basic tests following equipment repair. • Tests by manufacturers and distributors. The instrument may be used to test equipment originally manufactured to a range of specifications including: BS 3456/IEC 335-1, BS 2769, BS 4533, BS 415 and BS 7002. PORTABLE APPLIANCE TESTERS SPECIFICATIONS Tests Available (1)Circuit test (2)Fuse check (3)Earth Continuity test (4)10 A Earth Bond test (5)25 A Earth Bond test (6)Insulation test (7) Extension Lead test (ELT1 required) Pass Band Limit: 100 mΩ and 500 mΩ Circuit Test Meter Reading Range: 0 to 9,9 kΩ Range: Resolution: (a) 0 to 1 kΩ 0,01 kΩ (b) 1 kΩ to 2 kΩ 0,02 kΩ (c) 2 kΩ to 5 kΩ 0,05 kΩ (d) 5 kΩ to 9,9 kΩ 0,1 kΩ Accuracy: (a) 2,5% of Reading ± 0,01 kΩ (b) 2,5% of Reading ± 0,02 kΩ (c) 2,5% of Reading ± 0,05 kΩ (d) 2,5% of Reading ± 0,1 kΩ Open Circuit Voltage: 4,5 V d.c. 25 A Earth Bond Test Meter Reading Range: 0 to 1990 mΩ Range: Resolution: (a) 0 to 999 mΩ 1 mΩ (b) 900 mΩ to 1990 mΩ 10 mΩ Short Circuit Current: 1 mA d.c. Fuse Check 5 V d.c. 0,5 mA Typical Earth Continuity Test Range: Resolution: (a) 0 to 999 mΩ 1 mΩ (b) 900 mΩ to 9990 mΩ 10 mΩ Accuracy (a) 2,5% of Reading ± 5 mΩ (b) 2,5% of Reading ± 10 mΩ Open Circuit Voltage: Typical 100 mV d.c. Constant Current (≤ 1 Ω): Typical 100 mA d.c. 10 A Earth Bond Test Meter Reading Range: 0 to 1990 mΩ Range: Resolution: (a) 0 to 600 mΩ 1 mΩ (b) 600 mΩ to 999 mΩ 1 mΩ (c) 900 mΩ to 1990 mΩ 10 mΩ Accuracy: 2,5% of Reading ± 5 mΩ (0 to 600 mΩ range only) Open Circuit Voltage: Typically 3 V rms a.c. 50 Hz Spec. Point Current: 10 A into 100 mΩ at 240 V 8,7 A into 100 mΩ at 230 V Short Circuit Current: Typically 14 A Accuracy: (a) 2,5% of Reading ± 5 mΩ (b) 2,5% of Reading ± 10 mΩ Short Circuit Current: Typically 2 mA Extension Lead Test Polarity Test Display will indicate: “YES” if polarity Correct “POL” if connections crossed “S.C.” if short-circuit L–N “O.C.” if open-circuit L or N “BAD” if leakage L–N Earth Bond Test (10 A and 25 A) Insulation Test Ranges as the PAT32 Pass Band Limit: 100 mΩ and 500 mΩ Temperature Range Operation: 5°C to +40°C Storage: -25°C to + 65°C Open Circuit Voltage: Typically 6 V rms a.c. 50 Hz Humidity Range Operation: ≤ 90% RH at 25°C Spec. Point Current: Typically 25 A into 100 mΩ (10 A into 500 mΩ) Short Circuit Current: Typically 38 A Insulation Test Meter Reading Range: 0 to 99 MΩ Range: Resolution: (a) 0 to 10 MΩ 0,1 MΩ (b) 10 MΩ to 20 MΩ 0,2 MΩ (c) 20 MΩ to 50 MΩ 0,5 MΩ (d) 50 MΩ to 99 MΩ 1 MΩ Accuracy: (a) 2,5% of Reading ± 0,1 MΩ (b) 5% of Reading ± 0,2 MΩ (c) 5% of Reading ± 0,5 MΩ (d) Indication Only Safety The PAT32 meets the requirements of IEC 1010-1(1990) Safety Class I, Installation Category II, Pollution Degree 2, Altitude up to 2000 m. Supply Voltage 230 V 50 Hz 300 VA (supply voltage not to exceed +10%/-6% of the nominal voltage) Dimensions PAT32: 314L x 152H x 206W mm (12,5L x 6H x 8W in approx.) ELT1: 123L x 58H x 64W mm (4,75L x 2,25H x 2,5W in approx.) Weight PAT32: 3,75 kg (8,25 lb approx.) ELT1: 350g (0,75 lb approx.) Pass Band Limit: 2 MΩ (Class I) 7 MΩ (Class II) Open Circuit Voltage: ≤ 680 V d.c. Spec. Point Current: 500 V into 2 MΩ ORDERING INFORMATION Item (Qty) Order Code Portable Appliance Tester ........................................PAT32 Included Accessories Earth Bond test lead with crocodile clips.......... 6231-043 Accessory Pouch, PVC ..........................................6420-089 Operating instruction book ..................................6171-728 Optional Accessories Extension lead tester, ELT 1 .................................6111-130 Earth Bond probe, EP 1 .........................................6320-225 Safebloc adaptor lead ............................................6331-230 Appliance safety log book, complete...................6131-813 Test sheets for log book (pk of 30) ......................6171-417 Test stickers for log book (pk of 72)....................6171-418 Open learning course, “Electricity in the Workplace” & “Portable Appliance Testing”.................................................6131-883 Video on Portable Appliance Testing ..................6131-999