MEGGER MJ159 CALIBRATION and MEGGER MJ159 REPAIR

 
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the MEGGER MJ159 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

 

 
   MEGGER MJ159 (212159)   Description / Specification:    
MEGGER MJ159 100/250/500/1000 V Insulation Tester

The Megger MJ159 insulation tester is designed to give rapid, accurate and direct measurement of continuity and insulation resistance of domestic and industrial wiring, cables, transformers, motors, generators electrical machinery and appliances.
It is self-powered, and is suitable for use during installation and commissioning work as well as for service and maintenance applications.
Specifications.

Insulation Range.
Insulation Resistance: 0.1Ω - 2000 MΩ.
Nominal Test Voltages dc: 100 V, 250 V, 500 V, 1000 V.
Accuracy: 250 V, 500 V, 1000 V +30%, -0% maximum; 100 V, +40%, -0% maximum.
Midscale: 4 MΩ.
Short Circuit Current: 1.9 mA.
Accuracy: ±1.25% of fsd on a 2.8 in. (71.1mm) arc length: [0.035 in. (0.9mm)].

Resistance Range.
Range: 0.1Ω - 5000Ω.
Open circuit Test voltage: 3 V ±0.2 V.
Short Circuit Current: 2 mA ±10%.
Accuracy: ±1.25% of fsd on a 2.8 in. (71.1mm) arc length: [0.035 in. (0.9mm)].
Maximum Load Capacitance: 1μF with less than ±0.1” pointer movement.
Discharge: Up to 1μF capacitance is discharged from 1000V to less than 42.4 V in less than 4 seconds.

Safety Voltage Check.
Voltage measurement: 0.1 V - 600 V ac; the meter is RMS calibrated and average responding.
Safety voltage indicator: Indicates the presence of dc voltages, scaling is not the same as the ac meter; true dc voltage equals scale reading divided by 2.22.
Accuracy: 2.5% of full scale.

Power Supply.
Low voltage brushless ac generator, cranking speed between 130 rpm and 170 rpm.



 



Related Bench Equipment Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

dBm
dBm (sometimes dBmW) is an abbreviation for the power ratio in decibels (dB) of the measured power referenced to one milliwatt (mW). Zero dBm equals one milliwatt. A 3 dB increase represents roughly doubling the power, a 3 dB decrease, the power is reduced by about one half.

Millimeter-wave
Millimeter-wave is a term that generally refers to frequencies of 26.5 GHz and above. That is where signal wavelengths fall below approximately 10 mm, and thus the terminology changes from centimeters to millimeters.

Power Repeatability
Power Repeatability is the random uncertainty in reproducing the power level after changing and re-setting the power level. The power repeatability is ± half the span (in dB) between the highest and lowest actual power. Note: - The long-term power repeatability can be obtained by taken the power repeatability and power stability into account.

Stability
Stability is the extent to which a specified property, characteristic, or parameter of a substance, device, or apparatus, remains fixed with the passage of time or with varying environmental conditions.


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