Megger MIT300 Insulation and Continuity Tester

£462.00

Megger MIT 300/310 Series Insulation Continuity testers
Nominal Test Voltage	MIT310, 310A, 320, 330: 1000V, 500V, 250V (DC) MIT300: 500V, 250V (DC)
Measuring Range	10kΩ to 999MΩ on all ranges
Short Circuit Current	1.5mA nominal
Test Current on Load	1mA 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 10MΩ, ±5% up to 100MΩ, ±30% up to full scale MIT310A: <2.5% of scale length (or 30% of reading 200kΩ to 10MΩ)
Continuity
Measuring Range	0.01Ω to 99.9Ω (0-50Ω on analogue scale)
Open Circuit Voltage	5V ± 1V
Short Circuit Current	MIT300, 310, 320, 330: 205mA + 10mA -5mA MIT310A: 200-250mA
Continuity Accuracy	MIT300, 310, 320, 330: ±3% ± 2 digits MIT310A: ±2.5% of scale length (or 30% of reading 0.2 to 2kΩ)
Measuring Range	0-2/20/200/2kΩ
Open Circuit Voltage	1.5V ± 0.5V
Zero Offset Adjust	MIT300, 310, 320, 330: 0 - 9Ω MIT310A: 0 to 0.5Ω
Continuity Buzzer	MIT300, 310: operates at <5Ω MIT 320, 330: adjustable from 1Ω to 20Ω MIT310A: operates at <5Ω MIT300, 310, 320, 330: response time <20ms MIT310: response time <100ms
Resistance Range (MIT320/330)
Measuring Range	10Ω to 1MΩ
Open Circuit Voltage	5V
Short Circuit Current	1.5mA
Accuracy (at 20°C)	±5 ± 2 digits up to 100kΩ
Measuring Range (MIT310A)	0 to 2kΩ (refer to continuity)
Voltage Range
Measuring Range	0 to 600V AC (50/60Hz) or DC
Accuracy (at 20°C)	MIT310, 320, 330: DC or AC (50/60Hz): ±1% ± 2 digits MIT310A: ±2.5% of scale length for 50/60Hz
Temperature Coefficient	<0.1°C per °C on all ranges
Default Voltmeter
MIT310, 320, 330	>25V AC or DC is applied display will operate as a voltmeter
MIT300	Beeps and flashes V on the display
MIT310A	All modes including OFF
Test Inhibit	If more than 50V is detected testing will be inhibited

Description

Megger MIT300 Insulation and Continuity Meter

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.

Key Features:

Extremely easy to use
Tough rubber armoured case
Self contained protective cover
Live circuit warning
Weatherproof to IP54
Intelligent Safety System for protection.

Megger MIT300 Series Selection Chart

Features & Specification

More Information

Key Features

Manufacturer Certificate Included, Resistance Measurement, Continuity Measurement

Product Stock Status

Next Day Delivery (subject to availability)

Manufacturer

Megger

Short Description

Megger MIT 300/310 Series Insulation Continuity testers
Nominal Test Voltage	MIT310, 310A, 320, 330: 1000V, 500V, 250V (DC) MIT300: 500V, 250V (DC)
Measuring Range	10kΩ to 999MΩ on all ranges
Short Circuit Current	1.5mA nominal
Test Current on Load	1mA 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 10MΩ, ±5% up to 100MΩ, ±30% up to full scale MIT310A: <2.5% of scale length (or 30% of reading 200kΩ to 10MΩ)
Continuity
Measuring Range	0.01Ω to 99.9Ω (0-50Ω on analogue scale)
Open Circuit Voltage	5V ± 1V
Short Circuit Current	MIT300, 310, 320, 330: 205mA + 10mA -5mA MIT310A: 200-250mA
Continuity Accuracy	MIT300, 310, 320, 330: ±3% ± 2 digits MIT310A: ±2.5% of scale length (or 30% of reading 0.2 to 2kΩ)
Measuring Range	0-2/20/200/2kΩ
Open Circuit Voltage	1.5V ± 0.5V
Zero Offset Adjust	MIT300, 310, 320, 330: 0 - 9Ω MIT310A: 0 to 0.5Ω
Continuity Buzzer	MIT300, 310: operates at <5Ω MIT 320, 330: adjustable from 1Ω to 20Ω MIT310A: operates at <5Ω MIT300, 310, 320, 330: response time <20ms MIT310: response time <100ms
Resistance Range (MIT320/330)
Measuring Range	10Ω to 1MΩ
Open Circuit Voltage	5V
Short Circuit Current	1.5mA
Accuracy (at 20°C)	±5 ± 2 digits up to 100kΩ
Measuring Range (MIT310A)	0 to 2kΩ (refer to continuity)
Voltage Range
Measuring Range	0 to 600V AC (50/60Hz) or DC
Accuracy (at 20°C)	MIT310, 320, 330: DC or AC (50/60Hz): ±1% ± 2 digits MIT310A: ±2.5% of scale length for 50/60Hz
Temperature Coefficient	<0.1°C per °C on all ranges
Default Voltmeter
MIT310, 320, 330	>25V AC or DC is applied display will operate as a voltmeter
MIT300	Beeps and flashes V on the display
MIT310A	All modes including OFF
Test Inhibit	If more than 50V is detected testing will be inhibited

Delivery

Updated January 2024

Please note, our cut-off time is 2:00pm

Orders requiring calibration

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.
Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service	Price
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT	FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT	£4.95
Next WORKING Day (excludes Saturdays, Sundays and public holidays) – UK Mainland only - Zones A & B - ANY order value - Order by 2:00pm	£7.75
Saturday ANYTIME Delivery - Order by 2:00pm	£9.95

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

Zones A & B - Mainland delivery rates apply.
Zone C - Scottish Highlands (Charges are calculated at the checkout).
Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
Zone E - Northern Ireland (Charges are calculated at the checkout).
Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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