Insulation Resistance Testing instruments Megger model MIT520, 5kV and MIT1020, 10kV Specifications

Specifications

Range	Model MIT520	Model MIT1020
Voltage Input Range	95V to 240V ±10% 50/60Hz	95V to 240V ±10% 50/60Hz
Battery Life	6 hours continuous testing at 5kV	4 hours continuous testing at 10kV
Test Voltages	50V to 1kV in 10V steps	50V to 1kV in 10V steps
	1kV to 5kV in 25V steps	1kV to 10kV in 25V steps
Accuracy (23°C)	±5% to 1 TΩ	±5% to 1 TΩ
	±20% to 10 TΩ	±20% to 20 TΩ
Display Range
Digital Display:	10kΩ to 15 TΩ	10kΩ to 35 TΩ
Analog Display:	100kΩ to 1 TΩ	to 1 TΩ
Short Circuit/Charge Current	5mA	5mA
Capacitor Charge Time	≤1.5 seconds/µF at 5mA to 10kV	≤3 seconds/µF at 5mA to 10kV
Capacitor Discharge Time	≤120ms/µF to discharge from	≤250ms/µF to discharge from
	5000 Volts to 50 Volts	10,000 Volts to 50 Volts

Specifications for both Models
Guard	2% error guarding 500kΩ leakage with 100MΩ load
Capacitance Measurement	10nF to 50µF (dependant on measurement voltage)
Capacitance Measurement	±5% ±5nF
Accuracy (23°C)
Voltage Output Accuracy	+4% ±10 V of nominal test voltage at 1 GΩ load ±25V for test voltages less
(0°C to 30°C)	500 Volts
Current Measurement Range	0.01 nA to 5mA
Current Measurement	±5% ±0.2 nA at all voltages
Accuracy (23°C)
Display	Analog/digital 3 digits
Interference Rejection	2mA rms @ 200 volts and above
Timer Range	Up to 99 minutes and 59 seconds from start of test
Memory Capacity	32 kB
Test Regimes	Auto Insulation Resistance (IR). Polarization Index (PI). Dielectric Absorption Ratio (DAR). Step Voltage (SV). Dielectric Discharge (DD).
Interface	RS-232 and USB
Data Store	Voltage, test time, leakage current, resistance, PI, DAR, DD, Capacitance
	and time constant
Real Time Output	Serial, once per second of test voltage, current and resistance
Environmental Operating	-10°C to 65°C
Temperature
Storage Temperature	-25°C to 65°C
Ingress Protection (lid Closed)	IP65
Humidity	90% RH non-condensing at 40°C
Safety	Meets the requirements of EN 61010-1: 2001 CAT III 300V
EMC	Meets the requirements of EN 61326-1: 1998 for use in heavy industrial areas
Dimensions	305mm x 194mm x 360mm (12.7" x 6" x 14.2")
Weight	7.1 kg (16lb) approx