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Megger MJ15 Analogue Insulation Tester 5 kV

The Megger MJ15 is a compact 5 kV insulation tester. It is very simple to use and provides a quick and accurate reading of insulation resistance. The instrument uses an analogue display with a maximum reading of 20 GΩ. The MJ15 has an additional hand-cranked generator.

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Feature Specification

Large, single scale analog display
Auto voltage measurement function indicates conductor and auto discharge potential
Supplied with optional locking test button
Safety recessed terminals and long connectors
Four output test voltages
Simple to use
CE marked
Dual power supply option on MJ15
Unique scale overlay for pass/fail bands
Resilient mounted analogue scale for robustness
Single scale for insulation values to avoid operator error
Light weight and rugged
Range down to 100kΩ ideal for go/no go testing

Insulation Range	100 kΩ to 20 GΩ (also 0 Ω and ∞ )
Test Voltages (DC)	500 V, 1000 V, 2500 V & 5000 V
Test Voltage Accuracy	±5% of nominal test voltages on 20 MΩ load
Test Voltage Stability	<±1% (180 rpm to 240 rpm
Insulation Accuracy (at 0 - 30°C) (32 to 86°F)	±2,5% of full scale deflection
Short Circuit Current	1,5 mA ± 0,5 mA
Maximum capacitance of load	5 μF
Interference Rejection	1 mA rms at 50 to 60 Hz
Discharge Resistor	<500 kΩ
Voltage RANGE	0 to 600 V a.c.
Indication of DC Accuracy	± 2,5% f.s.d. AC (with rotary switch in the V position)
General Overload rating	720 Vac or DC
Scale Length	2,8 in. (72 mm) (96°)
Power Supply	Low voltage brushless Generator and 8 x AA cells (LR6)
Battery Life	Typically 2000 five second tests at 5 kV on 100 MΩ load
Battery Indicator	Loaded battery test