Megger MIT515 User Manual

21
Measurement Techniques
Understanding Measurement Currents
Insulation resistance is defined as the dc test voltage divided
by the total current flowing in an insulator. The total current
has four components; capacitive current, absorption current,
conductance current and leakage current.
In the case of dry insulation, conductance current may be
negligible and the leakage current may be low, in which case
the absorption current will dominate the total current
measured.

Megger MIT515 Specifications

General

Insulation Resistance Range	10 kΩ to 10 TΩ
Short Circuit Current	1.5 mA
Display	Backlit LCD
Weight	1.5 kg
Safety Rating	CAT IV 600 V
Dimensions	230 x 170 x 100 mm
IP Rating	IP65
Operating Temperature	-20°C to +50°C
Storage Temperature	-25°C to +65°C
Test Voltage	500 V, 1000 V, 2500 V, 5000 V
Power Supply	Rechargeable battery
Accuracy	±5%
Insulation Test Voltage	500 V, 1000 V, 2500 V, 5000 V
Battery Life	6 hours continuous testing