Specification	MJ159 MJ359	210170
Insulation Resistance	0 to 2,000 MΩ	0 to 20,000 MΩ
Accuracy	±1.25% of fsd on a 2.8 in. (71.1mm) arc length	±3% of scale length on a 3.08 inch arc length
Nominal Test Voltages	DC: 100 V, 250 V, 500 V, 1000 V
Applied test voltage accuracy (250 V, 500 V, 1000 V ranges)	+30%, -0% max.	+5%, -5% max.
Applied test voltage accuracy (100 V range)	+40%, -0% max.	+5%, -5% max.
Midscale resistance	4 MΩ	40 MΩ
Short Circuit Current	1.9 mA	220 μA nominal on all ranges
Maximum Load Capacitance	1μF with less than ±0.1” pointer movement
Discharge rate	Up to 1 μF capacitance is discharged from 1000 V to less than 42.4 V in less than 4 secs
Automatic discharge	Capacitive circuits are automatically discharged when the “TEST” button is released following an insulation test.
Low Resistance Range	0.1 Ω – 5000 Ω
Test Voltage (open circuit)	3 V ±0.2 V	3 V ±5%
Scale length	3.08 in. (78 mm)
Short circuit current	2 mA ±10%	30 mA ±10%
Safety Voltage Measurement	20 V to 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
Physical Characteristics	Dimensions 8.25 H x 5 W x 5 D in. (213 H x 124 W x 128 D mm); Weight Approximately 1 kg (2,3lb)

Megger MJ359 1KV DC Insulation Tester

Description