Insulation Tester Megger MIT300 Series

Megger
Insulation and Continuity Testers MIT300 Series



CAN Electronic Indonesia
www.canelectronic.com
canelectronic.ind@gmail.com
021 6232 0266, 2607 1120 / 26

Specification:

Insulation ranges

Nominal Test Voltage

MIT310, 310A, 320, 330     : 1000 V, 500 V, 250 V (d.c.)

MIT300   :  500 V, 250 V (d.c.)

Terminal Characteristics

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)

MIT300, 310, 320, 330    :   ±3%, ±2 digits up to 10 MΩ, ±5% up to 100 MΩ, ±30% up to full scale

MIT310A   :  <2.5% of scale length (or 30% of reading 200 kΩ to 10 MΩ)

Continuity ranges

Measuring Range:   0,01 Ω - 99,9 Ω (0 -50 Ω on analogue scale)

Open Circuit Voltage:   5 V ±1 V

Short Circuit Current

MIT300, 310, 320, 330   :  205 mA +10 mA –5 mA

MIT310A   :  200 - 250 mA

Accuracy (at 20 °C)

MIT300, 310, 320,330   :   ±3% ±2 digits

MIT310A   :  ±2.5% of scale length (or 30% of reading 0.2 Ω to 2 kΩ)

Measuring range   :   0 - 2/20/200/2 kΩ

Open circuit voltage   :  1.5 V +/-0.5 V

Zero Offset Adjust:

MIT300, 310,320, 330   :  0 - 9 Ω

MIT310A  :  0 - 0.5 Ω

Continuity Buzzer

MIT300, 310   :   Operates at <5 Ω

MIT320, 330   :   Adjustable 1 Ω to 20 Ω

MIT310A         :   Operates at <5 Ω

MIT300, 310, 320, 330   :    Response time <20 ms

MIT310A   :   Response time <100 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

Measuring Range (MIT310A)   :   0 - 2 kΩ (refer to continuity)

Voltage range

Measuring Range  :   0 - 600 V a.c. (50/60 Hz) or d.c.

Accuracy (at 20 °C)

MIT310, 320, 330  :  d.c. or a.c. (50/60 Hz):  ±1%, ±2 digits

MIT310A  :  ±2.5% of scale length for 50/60 Hz

Temperature coefficient:  <0,1% per °C on all ranges.

Default voltmeter   :   all modes except off

MIT310, 320, 330    :  >25 V a.c. or d.c. is applied display will operate as a voltmeter.

MIT300    :    Beeps and flash ‘V’ on the display

MIT310A  :   All modes including OFF

Test inhibit  :  If more than 50 volts is detected, testing will be inhibited.