MIT200 SERIES
Analogue and digital insulation & continuity tester
MIT200 Series
Digital/Analogue Insulation and Continuity testers
•
•
•
•
•
•
•
•
•
•
•
•
•
Insulation testing to 1000Mohms
Continuity testing at 200mA down to 0.01ohms
Live circuit warning (voltage display) and test
inhibit
Digital/Analogue display
Alkaline or rechargeable batteries
–10˚C to +55˚C operating temperature
CATIII 600V
Conforms to EN61557-1
Introduction
The MIT200 is one of the smallest insulation
testers available on the market today. With
options of a two voltage, or three voltage
instrument, the MIT200 instruments offer a
range of safety and operation features
expected from a Megger instrument.
The display offers a combination of digital
readout and analogue display, using Megger’s
patented DART display technology, which
include the benefits of an LCD display, such
as robust, clear and accurate measurement,
with an analogue pointer response for
evaluating circuit charge and discharge
characteristics.
The instrument housing is a tough ABS
designed to withstand the rigours of hard use,
whilst small enough to drop into your pocket
when not in use.
Battery requirements are 6 AA batteries of
either standard Alkaline or Nickel Metal
Hydride (NiMH) rechargeable type. A low
battery warning indicator gives advanced
warning of exhausted batteries.
Continuity testing
Automatic continuity testing is performed at
200mA to ensure compliance with
international requirements. No need to press
the test button.
All instruments will measure up to 100ohms on
continuity, of which 0-10ohms is performed at
greater than 200mA to meet international electrical
testing requirements.
Lead null is possible up with to 9.99ohms of test lead
resistance, ensuring the ability to null fused test leads
as well as standard leads.
Continuity buzzer
A continuity buzzer provides a means of rapid cable
testing and circuit identification, with voltage protection
should you accidentally touch a live circuit.
The buzzer operates at a 5ohm threshold.
Insulation testing
The instruments offer one of four configurations as
detailed in the table below, providing an ideal solution
to most low voltage insulation testing applications.
Insulation testing is possible up to 1000Mohms on all
ranges from 250V upwards.
Auto discharge ensures all circuits are safely
discharged after testing.
1000V insulation test ranges have a high voltage
warning prior to test voltage being applied.
Features and benefits summary
Meets the international EN61557 requirements of
the rated test voltage into a 1 mA load.
Digital display of insulation measurement up to
1000Mohms on either linear or logarithmic
analogue arc digital display.
Continuity range has 0,01ohms resolution and a
short circuit current in excess of 200mA.
Automatic continuity testing leaves both hands
free. No need to press the test button.
Automatic power-off if left unattended reduced
wasted battery life.
MIT200 SERIES
Analogue and digital insulation & continuity tester
•
•
•
Automatic voltage detection avoids
accidental contact with dangerously live
circuits.
Test lead zero allows compensation for
test lead resistance.
Buzzer range operates at <2ohms
Safety
Every Megger instrument is designed with
safety as its primary objective. All instruments
meet or exceed the requirements of safety
directive IEC 61010.
Default fault meter
A built-in voltmeter automatically switches in
when the instrument is connected to a circuit
with an AC or DC voltage greater than 25V.
Test inhibit
Circuits in excess of 25V will generate a
voltage warning. Circuits over 50V will inhibit
testing on both continuity and insulation test
ranges, protecting the operator and the
instrument from injury or damage.
600V CATIII
The MIT200 series has been designed for use
on applications up to 600V CATIII.
All instruments are fully compliant with the
safety requirements of IEC61010 and meet all
requirements of EN61557 for insulation and
continuity testing.
Applications
The MIT200 series will find applications in
electrical contracting, both on domestic and
industrial systems, as well as site
maintenance and service departments.
The MIT200 series of insulation and continuity
testers are ideal for testing transformers,
motors, generators,
switchgear, panel building, domestic
appliances, power tools etc., as well as fixed
electrical wiring systems.
Their small size and light weight make them
ideal for those engineers that need to carry
them for extended periods.
All instruments meet the
requirements of most International Standards
including VDE0413 Part 1 and BS7671 (the
16th Edition of the IEE Wiring Regulations).
MIT200 Options
Low Cost MIT
series
MIT220
MIT230
Insulation testing
250V Y Y
500V Y Y
1000V Y
1000Mohms range Y Y
Auto-ranging Y Y
Auto discharge Y Y
Test Inhibit Y Y
Live circuit voltage display Y Y
Continuity testing
Continuity@ >200mA Y Y
Continuity to 0.01 Ohms Y Y
Test Lead Null (9.99Ohms) Y Y
Automatic continuity test Y Y
Continuity buzzer with 5ohm
threshold Y Y
Default volts warning Y Y
General
Digital display + arc Y Y
Battery condition Y Y
Auto power down Y Y
Tough carry case Y Y
Test leads Y Y
CATIII 600V Y Y
Environmental
Operation temperature -10C to +55C
Storage temperature) -20 C to + 65 C
IP rating IP40 IP40
Included accessories
Standard test leads with prods
and clips Y Y
Certificate of test Y Y
Printed user guide
Warranty 3 3
MIT200 SERIES
Analogue and digital insulation & continuity tester
SPECIFICATIONS Default voltmeter
MIT220,230 >25 V ac or dc. is applied display
will operate as a voltmeter.
Insulation ranges
Nominal Test Voltage 1000V, 500 V, 250 V
(d.c.)
Test inhibit If more than 50 volts is detected, testing
will be inhibited.
Measuring Range
10kΩ - 1000MΩ on all
ranges
Range: 25V to 600V @ 50/60 Hz & dc
Terminal Voltage on Open Circuit (d.c.):
-0% +25% of rated
voltage Accuracy: 25 V to 450 V ac/dc ±1% ±1 digit
450 V to 600 V ac ±2% ±1 digit
Short Circuit Current 2 mA +0% –50% Auto power down
Auto power down operates after 10 minutes if left in standby
mode.
Test Current on Load >1 mA at minimum
pass values of
insulation as specified
in BS7671, HD384,
IEC364 and
VDE0413 part 1
Temperature and humidity
Operating Range -10°C to +60°C
Operating Humidity 93% R.H. at +40°C max.
Accuracy (at 20° C)
Storage Range -25°C to +65°C
Mit220,230 ±3% of reading ±2 digits
up to 10 MΩ
Environmental Protection IP40
±5% of reading ±2 digits
up to 100 MΩ
Fuses
±30% of reading up to
1000MΩ Terminals 500 mA (F) 600 V, 32 x 6 mm Ceramic
HBC 10 kA minimum.
Terminal characteristics Display shows if fuse is ruptured.
0 10kΩ 100kΩ 1MΩ 10MΩ 100M
Ω
1000V
800V
600V
400V
200V
Safety
Meets the requirements of EN61010-1 Cat III 600V 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
Continuity ranges Battery 6 x 1,5 V cells IEC LR6 type(AA alkaline).
Measuring Range: 0,01Ω - 100,0 Ω Rechargeable NiCd or NiMH cells may be
used.
(0 -50 Ω on analogue
scale) Battery condition is constantly shown on the display as a
four-section bar-graph.
Open Circuit Voltage: 5 V ± 1 V
Short Circuit Current: 205 mA, ± 5 mA @
(0-10ohms)
>20mA @10 - 100ohms
Battery Life
Accuracy (at 20° C)
3500 consecutive tests (5 seconds per test) on any test
using 2Ah batteries.
MIT200,210,220,230 ±0,01Ω to 9,99Ω ±3%
±2 digits
Weight
10,0Ω to 99,9Ω ±5% All units 530gms ±5%
±2 digits Dimensions
All units 195 x 98 x 40mm
Zero Offset Adjust: E.m.c
MIT200,210,220,230 0 to 9,99Ω In accordance with IEC61326 including amendment No.1
Continuity Buzzer
MIT200,210,220,230 Operates at <5 Ω.
MIT200 SERIES
Analogue and digital insulation & continuity tester
ORDERING INFORMATION
Item (Qty) Order Code
250V/500V Insulation & Continuity tester MIT220-EN
250V/500V/1000V Insulation & continuity tester MIT230-EN
Included accessories
Lead set with prods and clips
Carry case
Calibration certificate
User guide
Optional accessories
Fused test lead set
6220-789
INFORMATIO
