MIT300 Series
Insulation and Continuity Testers
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In addition the range meets the requirements of
IEC 61010-1 for safe connection to a 440 V Installation
Category III supply (600 V Phase to Earth).
The MIT330 additionally offers the facility to save test
results to internal memory. Over 1000 result can be
saved on site, and downloaded to a computer when
convenient. Data is stored in non-volatile memory, being
retained when the instrument is switched off or batteries
are exhausted.
A Job reference number can be selected for a range of
results, allowing separate locations to be tested with the
same tester and easily separated when downloaded.
A memory bar graph acts as a ‘Fuel Gauge’ showing how
much memory has been used
Test results are downloaded to CSV (Coma Separated
Variable) spreadsheets, and can be imported into
Microsoft Excel. If certificates or reports are required,
the results can be downloaded via Megger Download
Manager (supplied) for simple form filling of test results
using optional certification software such as CertSuite
from Megger.
CertSuite electrical certification software works online
and offline, with PC, Mac, tablets and phones. It allows
you to send your certificate straight from the job to
Cloud based secure storage, seamlessly auto-syncing to
allow multiple engineers to work on the same certificate
simultaneously. An office-based supervisor can manage
on-site data entry and add company logos, photographs,
etc. Visit CertSuite.app for more information.
APPLICATIONS
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 range is supplied with a full 3 years
warranty.
SPECIFICATIONS
Insulation ranges
Nominal Test Voltage
MIT310, 320, 330 1000 V, 500 V, 250 V (DC)
MIT300 500 V, 250 V (DC)
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
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
Accuracy (at 20 °C)
MIT300, 310, 320,330 ±3% ±2 digits
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
Continuity Buzzer
MIT300, 310 Operates at <5 Ω
MIT320, 330 Adjustable 1 Ω to 20 Ω
MIT300, 310, 320, 330 Response time <20 ms
