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产品介绍
Megger LTW315 电气检测
Megger LTW315 Loop Impedance & RCD Combined Tester, Loop Impedance Test Type 2 Wire, 3 Wire 440V
Megger
LTW 300 Series Earth loop impedance testers to verify the loop impedance of a live electrical circuit without the need to disconnect the electrical supply. The LTW300 series instruments offer a safe and easy 2 wire loop testing solution that does not trip 30mA RCDs and can be used on a wide range of voltages. Backlit display0.01Ω resolutionNo-trip loop test on circuits with RCDs of ≥30 mA3 phase circuits with RCD protection can be testedTests radial circuits where the circuit does not return to the origin, even where only a phase and neutral contacts are available.10 second non trip loop test time with Auto test extension up to a further 10 seconds if noise is detected, to improve the accuracy of the testHigh current loop testing for supplies that do not have an RCD fitted AUTO START will start the loop test running as soon as the test leads are connected; no need to press the test button means much safer testingPFC Display up to 20kAVoltage and frequency measurement110Vac systems including 110V centre tap to earth (55V phase to earth) can be tested on the secondary winding.IP54 Weatherproof caseOptional 10A fused 2 wired test leads and crocodile clip setComplies with IEC61010-1 300V CATIV safety standard and meets EN61557 Voltage measurement (ac only) 50V to 440V Accuracy ±2% ±1V Range 25Hz to 99.99Hz Accuracy ±0.1Hz A warning will be shown if applied voltage exceeds 440VDamage will occur if applied voltage exceeds 600Vrms Loop testing No-trip loop and high current loop test Source voltage LTW315: 100V to 280V (50Hz)LTW325: 50V to 440V (50Hz) Display range 0.01Ω to 2000Ω Accuracy ±5% ±0.03Ω Nominal test current No-Trip loop test 15 mA (at nominal 230Vac supply) High current loop test 4 A (at nominal 230 Vac supply) Operational range 0.30Ω to 1000Ω Prospective Fault Current (PFC) Prospective fault current Measured Source Voltage / Loop resistance Maximum range 40 kA; accuracy is derived from loop test and voltage measurement. Safety EN61010 Designed to EN61010-1 ed2 2001-02 Designed for 300 volts to Earth Category IV, with Phase to Phase voltages to 440 Volts; Fuse protected to 600 volts rms ac EN61557 Complies with the following parts of EN61557, Electrical safety in low voltage systems up to 1000V ac and 1500V dc- Equipment for testing, measuring or monitoring of protective measures: Part1-General Requirements; Part3-Loop resistance Power supply Battery 8 x 1.5V cells IEC LR6 type (AA alkaline) Rechargeable 8 x 1.2V NiCd or NiMH cells Battery life 2000 consecutive tests Mechanical Weight 1000g ±10% excluding test leads Dimensions 203 x 148 x 78 mm Note RS is an authorised Megger distributor. Purchased though RS this product is eligible for the Megger extended 3 Year warranty Supplied with Test lead set with crocodile clips, mains socket test lead, 8 AA alkaline batteries, hard carry case and instructions. Megger Loop Testers ; Loop Impedance Test Type 2 Wire, 3 Wire; Maximum Voltage Measurement 440V; RCD Test Type AC Selective; Best Loop Test Accuracy ±10%; RCD Test Current 4A; Non-Trip Loop Test Yes; Safety Category CAT IV 300 V, IEC 61010; Display Type LCD; Battery Life 2000 Tests; Battery Type AA; Power Source Battery; Dimensions 203 x 148 x 78mm; Weight 1000g; Safety Category Voltage 300V; Length 203mm; Safety Category Level CAT IV; Height 78mm; Maximum Operating Temperature +50°C; Model Number p LTW315; Width 148mm; Minimum Operating Temperature -10°C;
Test & Measurement>Electrical Installation Testing & Accessories>Loop Impedance & RCD Combined Testers
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