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Megger 212359 MJ359 Major Megger Line/Hand-Cranked Insulation Resistance Tester 100, 250, 500 & 1000 V; 2 GOhms

Megger 212359  MJ359 Major Megger Line/Hand-Cranked Insulation Resistance Tester 100, 250, 500 & 1000 V; 2 GOhms
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Price: $1,195.00
Product ID : Megger 212359 MJ359 Major Megger Line/Hand-Cranked Insulation R
Manufacturer: MEGGER
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Description

Megger 212359 MJ359 Major Megger Line/Hand-Cranked Insulation Resistance Tester 100, 250, 500 & 1000 V; 2 GOhms No scale multipliers Multiple test voltages for spot and step voltage testing Guard terminal to eliminate surface leakage current Dual operation low voltage brushless a.c. generator or 120 V 50/60 Hz mains (line) supply Available in alternate configurations: 212159 - Low voltage brushless a.c. generator. Cranking speed between 130 rpm and 170 rpm 212459 - Six IEC LR6 cells (AA) Battery life: not less than 1300 insulation or Resistance range tests 212559 - Dual operation 120 V 50/60 Hz mains (line) supply and rechargeable battery. Six NiMh 1800 mAh cells Megger 212359 Shown Product Information Datasheet234 KB PDF Help Quality is crafted into Megger 212359 MJ359 Major Megger Hand-cranked Insulation Resistance Tester, with excellent test voltage regulation, direct measurement readout and an external guard terminal to eliminate surface leakage current from the measurement. It is portable, self-contained instrument designed to give rapid and accurate measurements. Megger 212359 MJ359 Major Megger Line/Hand-Cranked Insulation Resistance Tester features an analog display having four selectable test voltages of 100, 250, 500 and 1000 VDC, measuring insulation resistance up to 2000 MΩ,and an ohm range to 5000≈. Power for MJ359 is provided by 120 V ac 50/60 Hz or low-voltage generator. The low-voltage generator is connected to an electronic inverter to provide a very stable test voltage. Accuracy of measurement is unaffected by variations in the generator cranking speed and the test voltage is maintained at its rated value. 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. Megger 212359 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. Specifications Insulation Range Insulation Resistance0.1Ω - 2000 MΩ Accuracy ±1.25% of fsd on a 2.8 in. (71mm) arc length Nominal Test Voltages DC Test Voltages100/250/500/1000 V Accuracy Accuracy250/500/1000: +30%, -0% max, 50/100V: +40%, -0% max Midscale4 MΩ Short Circuit Current1.9 mA Max Load Capacitance1 µF with less than ±0.1" pointer movement DischargeUp to 1 µF capacitance is discharged from 1000 V to less than 42.4 V in less than 4 secs Resistance Range0.1 Ω - 5000 Ω Test Voltage Characteristics Open Circuit Test Voltage3 V ±0.2 V Short Circuit Current2 mA ±10% Accuracy±1.25% of fsd on a 2.8 in. (71.1mm) arc length Safety Voltage Check Voltage measurement0.1 V - 600 V a.c; the meter is RMS calibrated and average responding Safety voltage indicatorIndicates the presence of d.c. voltages. Scaling is not the same as the a.c. meter. True d.c. voltage equals scale reading divided by 2.22 Accuracy 2.5% of full scale General Power SupplyDual operation low voltage brushless a.c. generator or 120 V 50/60 Hz mains (line) supply SafetyThe instruments meet the requirements for double insulation to IEC 1010-1(1995), EN 61010 (1995) to installation Category II, 300 V phase to earth (ground), 600 V installation Category I

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