Loop Impedance Tester Accessories

Megger MFT1500 Series The MFT1500 series has all the essential features necessary for testing Domestic, Commercial and Industrial fixed wiring in accordance with BS7671 and European Standard EN61557. The unique design allows it to be operated on the floor, a ledge, hung around the neck with the supplied neck strap, or held in the hand. The hand strap increases operational comfort and security with all the test functions easily to hand. The backlit display and selector dial allow for use in difficult low-light conditions. Patented Megger Digital/Analogue Arc display provides both digital readout and indication of fluctuating readings Fast 200mA continuity test commences the moment the test probes touch the circuit with fast response buzzer enabling time saving, hands free testing Non-tripping loop impedance test (15mA) provides a 3-wire non-tripping 0.01Ω loop test designed to prevent RCD tripping High current loop impedance test (25A) provides a fast loop test where no RCD is fitted, or for Ze measurement on the incoming side of an RCD Prospective fault current ranges (25A test) DC sensitive RCD test RCD Ramp test displays the actual trip current on all RCD ranges. Ideal for identifying nuisance tripping RCDs AC/DC Voltmeter independent of any other test functions, eliminating the need to carry a separate multimeter Illuminated switch probe for single-handed operation and test status indication. Includes remote test button, bright white LED torch (1500mcd), red/green status LEDs and interchangeable probe tips Visible and audible safety warnings. If live voltages exist on a circuit during insulation or continuity testing the voltage is displayed on the screen. If this voltage exceeds a safe level, the MFT1502 inhibits further testing and a warning beeper sounds for extra safety 10mA to 1000mA RCD test ranges with both 0° and 180° phase angle Auto Discharge: Safely discharges system after insulation test preventing accidental shock from a stored charge on a long ...

LTW425 The Megger LTW425 two wire earth loop tester verifies the loop impedance of a live electrical circuit, ie without the need to disconnect the electrical supply. Offers a high resolution 2-wire loop testing solution that does not trip 30 mA RCDs and can be used on a wide range of voltages. High resolution (0.001Ω) 2 wire testing + maxZ + (R1+R2) Backlit display 2 wire loop tests: Phase to Earth, Phase to Neutral or Phase to Phase 3 phase circuits with RCD protection can be tested Tests 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 test High 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 testing PFC Display up to 40kA Voltage and frequency measurement 110 Vac systems including 110V centre tap to earth (55 V phase to earth) can be tested on the secondary winding. IP54 Weatherproof case Optional 10A fused 2 wired test leads and crocodile clip set Complies 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 440V Damage will occur if applied voltage exceeds 600Vrms Loop testing No-trip loop and high current loop test Source voltage 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 High resolution loop test Source voltage 50 V to 440 V (50Hz) Display ...