Megger MIT330 Insulation and Continuity Tester

The MIT300 series has applications in all aspects of domestic, commercial and industrial electrical contracting, building maintenance, testing, inspection 
and servicing. Combining both Insulation testing and continuity testing, each instrument caters for all aspects of fixed wiring installations.
Further applications can be found in panel building, testing of motors, generators, switchgear and power tools, street lighting and low volume 
manufacturing environments etc.

All the MIT300 (except MIT310A) range is supplied with a warranty upgradable free to a full 3 years.

Megger MIT300 Series Selection Chart

Mgger MIT330 Insulation & Continuity Tester
Insulation ranges
Nominal Test Voltage	1000 V, 500 V, 250 V (d.c.)
Measuring Range
All instruments	10 k½ - 999 M½ 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)	±3%, ±2 digits
Continuity ranges
Measuring Range	0,01 ½ - 99,9 ½ (0 -50 ½ on analogue scale)
Open Circuit Voltage	5 V ±1 V
Short Circuit Current	200 - 215 mA
Terminal Characteristics
Accuracy (at 20° C)	±3% ±2 digits
Zero Offset Adjust	0 - 9 ½
Continuity Buzzer	Adjustable 1 ½ to 20 ½ Response time <20 ms
Resistance range
(can be used for diode testing)
Measuring Range	10 ½ - 1 M½
Open Circuit Voltage	5 V
Short Circuit Current	1.5 mA
Accuracy (at 20° C)	±5% ±2 digits up to 100 k½
Voltage range
Measuring Range	0 - 600 V a.c. (50/60 Hz) or d.c.
Accuracy (at 20° C)	d.c. or a.c. (50/60 Hz) ±1%, ±2 digits
Temperature coefficient	<0,1% per °C on all ranges.
Default voltmeter
(all modes except off)	>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.
AutoPower Down	Auto power down operates after 10 minutes if left in standby mode.
Temperature and humidity
Operating Range	-10°C to +60°C
Operating Humidity	93% R.H. at +40°C max.:
Storage Range	-25°C to +70°C
Test Result Storage (1000 results)
Job Number	255 locations
Distribution Board no.	99 locations
Circuits	99 locations
Phases	P1, P2, P3
Last recorded result may be recalled to the display. All data can be downloaded to a PC using Download Manager (supplied) or Megger Powersuite Professional of Windows software
Communications	USB interface
Environmental Protection	IP54
Fuses	Terminals 500 mA (F) 600 V, 32 x 6 mm Ceramic HBC 10 kA minimum.
Display shows if fuse is ruptured.
Safety	Meets the requirements of IEC61010-1 Cat III 600 V phase to earth.
Automatic discharge	After an insulation test the item under test will be discharged automatically. Any voltage present will be indicated on the display so that the discharge can be monitored.
Power supply
Battery	8 x 1,5 V cells IEC LR6 type(AA alkaline). Rechargeable NiCd or NiMH cells may be used. Battery condition is constantly shown on the display as a four-section bargraph.
Battery Life	5000 consecutive tests (5 seconds per test) on any test using 2Ah batteries. Weight
All units	980 gms
Dimensions	All units: 203 x 148 x 78 mm (8 x 5.7 x 3.2 inches)
E.M.C.	In accordance with IEC61326 including amendment No.1