Megger MIT310A-EN MIT 310A EN Insulation Resistance Continuity Tester

Megger MIT310A EN Features Continuity & buzzer tests start automatically when connected to circuit Insulation Test Voltages - 1000, 500, 250 Volts DC Resistance measurement range 10 Ohms - 2 kOhms Intelligent Safety System Safety Interlock prevents unsafe test lead connections Safe contact detector Even when the MIT300 EN connects with live circuits when on the continuity setting it will be safe and undamaged Live voltage alert warns you when circuit voltage is above 25 Volts Safety lockout feature prevents your test from executing if circuit voltages are above 50 Volts Continuity check feature prevents continuity tests or buzzer tests on live circuits Meets or exceeds International Wiring Regulations including BS7671 & VDE 0413 pts. 1 & 4, NFC15-100, IEC 364, HD 384, ES59009, EN 61557 and NEN3140 IEC 61010-1 compliant for safely connecting to 440 Volt Installation CatIII power supply (600 Volts Phase - Earth) Protective cover is self contained IP54 weatherproof rating

MIT310A EN Specifications
Insulation range
Nominal Test Voltages
MIT300	500 V, 250 V DC
MIT310, 310A, 320, 330	1000 V, 500 V, 250 V DC
Range of Measurement
All models	10 kOhms - 999 MOhms - all ranges
Short-Circuit Current	1.5 milliAmps nominal
Load Testing Current	1 milliAmp at minimum pass insulation values (specified per IEC 364, HD 384 and BS7671)
Accuracy (@ 20 deg. C)
MIT300, 310, 320, 330	+/- 3 percent, +/- 2 dgts to 10 MOhms max., +/- 5 percent to 100 MOhms max., +/- 30 percent to full scale
MIT310A	< 2.5 percent scale length or 30 percent reading 200 kOhms to 10 MOhms)
Continuity ranges
Measuring Range	0,01 to 99.9 Ohms (0 to 50 Ohms analog scale)
Voltage - Open Circuit	5 Volts +/- 1 Volt
Current - Short Circuit	200 to 215 milliAmps
Terminal Characteristics
Accuracy (@ 20 deg. C)
MIT300, 310, 320, 330	+/- 3 percent, +/- 2 dgts
MIT310A	< 2.5 percent scale length or 30 percent reading 0.2 - 2 kOhms)
Zero Offset Adjustments
MIT300, 310, 320, 330	0 to 9 Ohms
MIT310A	0 to 0.5 Ohms
Continuity Buzzer	MIT300, MIT310, MIT310A Operates @ < 5 Ohms MIT320, MIT330 Adjustable 1 to 20 Ohms MIT330, 320, 310, 300 Response in less than 20 millisec. MIT310A Response in less than 20 millisec.
Resistance Ranges (MIT320 & MIT330 only)
Range	10 Ohms - 1 MOhm
Voltage - Open Circuit	5 Volts
Current - Short Circuit	1.5 milliAmps
Accuracy (@ 20 deg. C)	+/- 5 percent +/- 2 dgts to 100 kOhms
MIT310A Range	0 to 2 kOhms (refer to the continuity)
Voltage ranges
Measuring	0 to 600 Volts AC (50 / 60 Hertz) or DC
Accuracy (@ 20 deg. C)
MIT300, 310, 320, 330	AC or DC (50 / 60 Hertz) +/- 1 percent, +/- 2 dgts
MIT310A	< 2.5 percent scale length 50 / 60 Hertz
Temp. coefficient	less than 0.1 percdent per degree C - all ranges
Default voltmeter - all operating modes excluding off
MIT300	Beep & flash "V"on display
MIT310, 320, 330	above 25 Volts AC or DC; display operates as voltmeter
MIT300A	all operating modes incl. "off"
Test inhibition	If over 50V
Automatic Power-Down (MIT310, MIT320, MIT330 only) After 10 min.
Humidity and Temp.
Operation Range	-10 to 60 deg. C
Operation Humidity	93 percent RH @ 40 deg. C maximum
Storage	-25 to 70 deg. C
General
Communication	USB
Environmental	IP54
Fuse	Terminals 500 milliAmps (F) 600 Volts, 32 x 6millimeter Ceramic HBC 10 kiloAmps min.
	Display shows when fuse becomes ruptured
Safety	IEC61010-1 compliant CatIII 600 Volts phase - earth
Auto discharge	After insulation testing the object being test is automatically discharged. Any voltage remaining is indicated on display so discharges can be carefully monitored.
Power
Battery	Eight 1.5 Volt battery cells - IEC LR6 type (alkaline AA) NiMH or NiCd Rechargeable cells Battery charge shown on display as bargraph
Battery operation time	5000 tests (5 sec. / test) for any tests with 2 Ah batteries
All units - Weight	980 grams
Size	203mm x 148mm x 78mm (8in. x 5.7in. x 3.2in.)
EMC	IEC61326 compliant incl. amendment #1

   Megger MIT310-A Datasheet
   Megger MIT310-A Manual