Insulation and Continuity Testers
絕緣和連續性測試儀
Model : MIT320
The Megger MIT320 all feature the popular Megger digital/analog display. Large 20mm high characters provide very clear readout, combined with an analog arc for the feel of an analog instrument, with a true analog response.
* Specification
Measuring Range
All instruments 10 kΩ - 999 MΩ on all ranges
Short Circuit Current 1.5 mA nominal
Test Current on Load 1 mA at min. pass values of
insulation (as specified in BS7671,
HD 384 and IEC 364)
Accuracy (at 20° C)
MIT320 ±3%, ±2 digits up to 10 MΩ, ±5% up to 100 MΩ, ±30% up to full scale
Continuity ranges
Measuring Range: 0.01 Ω - 99.9 Ω (0 -50 Ω on analog scale)
Open Circuit Voltage: 5 V ±1 V
Short Circuit Current:
MIT320 205 mA +10 mA –5 mA
Accuracy (at 20° C)
MIT300, 310, 320,330 ±3% ±2 digits
Zero Offset Adjust:
MIT300, 310,320, 330 0 - 9 Ω
Continuity Buzzer
MIT320 Adjustable 1 Ω to 20 Ω
MIT320 Response time <20 ms
Resistance range MIT320/330
(can be used for diode testing)
Measuring Range: 10 Ω - 1 MΩ
Open Circuit Voltage: 5 V
Short Circuit Current: 1.5 mA
Accuracy (at 20° C): ±5% ±2 digits up to 100 kΩ
Voltage range
Measuring Range: 0 - 600 V a.c. (50/60 Hz) or d.c.
Accuracy (at 20° C)
MIT300, 310, 320, 330 d.c. or a.c. (50/60 Hz):
±1%, ±2 digits
Temperature coefficient: <0.1% per °C on all ranges.
Default voltmeter
MIT320 >25 V a.c. or d.c. is applied display will operate as a voltmeter.
Test inhibit:
If more than 50 volts is detected, testing will be inhibited.