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A Used but in Excellent Working Condition Hand-Cranked Megger model MJ159. * Multiple test voltages for spot and step voltage testing * Guard terminal to eliminate surface leakage current * 1 - EV6220-436 - Test lead set (3 leads, 3 prods, 3 clips) Quality is crafted into every Major MEGGER® Insulation Tester, with excellent test voltage regulation, direct measurement readout and an external guard terminal to eliminate surface leakage current from the measurement. Five models are available for general purpose testing which include a low-voltage model. All are portable, self-contained instruments designed to give rapid and accurate measurements. Four of the models feature an analog display having four selectable test voltages of 100, 250, 500 and 1000 Vdc, measuring insulation resistance up to 2000 M½, and an ohm range to 5000 Å . The other model has four test voltages of 50, 100, 250 and 500 Vdc measuring insulation resistance up to 1000 MÅ . As a safety feature, the ac voltage range becomes effective as soon as the instrument is connected to the circuit under test. Therefore, a warning is given that the circuit under test is not de-energized before the instrument is operated. Though calibrated for ac voltage, this range also monitors the automatic discharge feature so that after equipment having capacitance (i.e. a cable), has been tested, an indication can be given that the voltage has discharged to a level that is safe for removing the test leads. Each instrument has a guard terminal which may be used to prevent the effects of surface leakage from influencing the readings. This is achieved by diverting the leakage current through the guard terminal and away from the instrument’s measuring circuit. Each instrument is built into a strong ABS plastic case with a fold down carrying handle. Insulation Resistance: 0.1 ½ - 2000 M½ (0.1 ½ -1000 M½ for MJ160) Accuracy: ±1.25% of fsd on a 2.8 in. (71.1mm) arc length d.c: 100 V, 250 V, 500 V, 1000 V. (MJ160 is 50 V, 100 V, 250 V, 500 V) 250 V, 500 V, 1000 V +30%, -0% max. Midscale: 4 M½ (2 M½ for MJ160) 1µF with less than ±0.1" pointer movement Discharge: Up to 1 µF capacitance is discharged from 1000 V to less than 42.4 V in less than 4 secs Resistance Range:0.1 ½ - 5000 ½ Short Circuit Current: 2 mA ±10% ±1.25% of fsd on a 2.8 in. (71.1mm) arc length: Voltage measurement: 0.1 V - 600 V a.c; the meter is RMS calibrated and average responding Safety voltage indicator: Indicates the presence of d.c. voltages. Scaling is not the same as the a.c. meter. True d.c. voltage equals MJ159 and MJ160: Low voltage brushless a.c. generator. Cranking speed between 130 rpm and 170 rpm MJ359: Dual operation low voltage brushless a.c. generator or 120 V 50/60 Hz mains (line) supply MJ459: Six IEC LR6 cells (AA) Battery life: not less than 1300 insulation or Resistance range tests MJ559: Dual operation 120 V 50/60 Hz mains (line) supply and rechargeable battery. Six Ni Cad cells (e.g. AA, NEDA 15 NC) The instruments meet the requirements for double insulation to EC 1010-1(1995), EN 61010 (1995) to installation Category II, 300 V phase to earth (ground), 600 V installation Category I 500 mA (FF) 660 V Ceramic 50 kA HBC 11/4 x 1/4 in. 7A (F) 440 V Ceramic 10 kA HBC 100 mA (F) HBC 20 mm x 5 mm (for line protection only) Power connection plug fuse 100 mA 240 V HBC (20 mm x 6 mm) Mains power cord fused plug (when applicable) 3 A 250 V ceramic HBC fuse to BS1362 11/4 x 1/4 in. (32 mm x 6 mm) In accordance with IEC 61326 includes amendment No. 1. 32° to 113°F (0° to 45°C) for battery operated models 14° to 122°F (-10° to 50°C) Storage: 95% RH max. at 95° F (35°C) Wipe disconnected instrument with a clean cloth dampened with soapy water or Isopropyl Alcohol (IPA). (please look at our rules and privacy policy) |
katyfischer@machine--tools.com (Katy Fischer) for additional information. This email is used for forwarding to newsgroup user.
