New MIT480/2 Launch
Unique features
NEW PRODUCT LAUNCH
SALES GUIDE
MIT480/2
Stabilised insulation testing
3 terminal connection
Integral terminal switching
Variable 10V to 500V test voltage
Continuous continuity range
Distance by capacitance calculation
Auto-hold on continuity tests
Analogue arc with pointer
The MIT480/2 series have been updated with a series of enhancements
and additions from years of customer feedback and use.
Suitable for telecommunications, cable TV, industrial and specialist electrical
installation testing, the new MIT480/2 series insulation and continuity testers
represent the industry standard for insulation testing on a wide range of
applications and circuits.
100GΩ test range
Rechargeable options
Contoured ergonomic design
Increased battery life
IP54 ingress protection
CAT IV 600V safety design
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
New MIT480/2 Launch
MIT481/2
MIT485/2
The entry model, high performance 50V to 500 V (100 GΩ)
SALES MESSAGE
The new MIT480/2 series, with their 3 terminal connection interface, makes working on
telecommunications networks, cable TV and 3-phase installation faster, safer and less prone to
connection and measurement errors.
Greater test voltage stability and accuracy translate to safe accurate and fast testing.
Output insulation voltage is now maintained to -0%, +2% +2v, producing the most accurate test
voltages in the industry under 5kV.
Range
2 models are in the standard range:
As 481/2 + Bluetooth downloading
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
General range features
Direct access to ALL primary and Terminal switching Stabilized control of insulation
secondary test modes test voltage
Variable voltage range 400mA AC/DC Trms current Six power cells improves
measurement operational life and costs
Recharging options with mains Redesigned functional Storage and wireless
or car charger kits downloading of test results
New MIT480/2 Launch
MIT480/2 functional roadmap…Key features:
Features that customers have identified as being intrinsic to their buying
decisions:
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
New MIT480/2 specific design feature detail:
3 Terminal connect – Allows all three test leads
to be connected at the same time, reducing the
need to reconnect test leads.
Terminal switching – Pressing the A-B-E (T-R-G)
button allows any test (except mA) to be switched
between each terminal pair without the need to
disconnect test leads
500 V test LOCK – 500 V insulation test
cannot be accidently accessed unless the
LOCK button is depressed during selection.
This prevents accidental testing at high voltage.
mA current measurement – AC/DC/Trms current
measurement is now available on a dedicated
“fuse protected” terminal pair.
Differential continuity measurement – Take a
continuity measurement. Pressing the ∆Ω
button zeros the value so the next measurement
only shows the difference value.
New MIT480/2 Launch
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
New MIT480/2 Launch
New general design feature detail:
The MIT480/2 range has updates or additions of several features that were
lacking, or customers thought could be improved, over the last 8 years:
Separate battery and fuse access – Calibration
Seal does not need to be broken for battery
replacement.
Optional internal battery charging –
No need to remove batteries.
Retains CAT IV 600V instrument rating.
New back stand - Eight years of research and
development have created “the working back
stand”.
Set the instrument to the ideal angle for desk
top working without slipping or collapse.
Rear accessory bar - available for a range
of accessories for hanging or belt
mounting the MIT480/2during use.
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
New MIT480/2 Launch
MIT480/2 features and USPs
Unique
Distinctive
Feature
Issues
Solution
Comments
3 Wire connection and
Two terminal connections
Connect all three test leads in one go
Unique to hand held
Reconnection of two wire
Far quicker to switch pairs in the
Comparison of circuit
Reconnection easily
Reduced risk of errors
Safer than continuously
“Gated” access to
Accidental testing at 500 V
“Gated” access to high voltage
Requested from
Stabilized O/P voltage
Overvoltage on low voltage
Limit test voltages to test voltage +2%
Expected performance
Guessed output voltage
Selected voltage now much closer
Less risk of damaged
Variable voltage setting
Test voltage adjustment now easily
Rechargeable options
High continuity use
Recharge adaptor
Retains instrument CATIV
Poor battery life
Improved battery autonomy increases
Longer battery life through
High battery costs
Reduced battery costs
Fast charge 3-4 hours
Stupid number of cells
Sixth cells removes the wasted 6th
packs
Makes recharging cells
cells!
Single continuity
Confusing ranges
Single auto-range
Simple buzzer ON/OFF
Time consuming range
Fully auto ranging and current
Switching
500V test
require continuous lead
reconnection to test 3 wire
circuits (A-B-E)
test leads is time consuming
introduces errors
can damage low voltage
circuits
applications causes damage
inaccurate
and switch connections using the A-BE (T-R-G) connections on the
instrument
instrument
prevents accidental testing at
potentially damaging voltages.
500 V not accessible unless LOCK
button is held down during selection
set to desired voltage
insulation testers
values far easier without
reconnection variance.
swapping test connections
Telecommunications
companies
from a market leader
equipment
discharges batteries quickly
range
Megger Instruments Limited MJH/June 2016
changes
MIT480/2 Launch
battery life by 30%
cell from packs of 2,4,6 or 8 battery
selection
rating
increased cell count and
lower current demand.
from flat
easier too, try charging 5
across
the entire 0.01 Ω to
1 M Ω range
New MIT480/2 Launch
Confusion limit alarms
Wider limit alarm options on
Fast response buzzer
Poor buzzer response
Fast contact detection and buzz.
Faster working with less
Test times unnecessarily long
Fast circuit measurement and
Beep Beep!
Short circuits missed
Quick circuit identification
Extended continuity
Gaps between continuity
Extended range from 0.01 Ω to 1.0 MΩ
No more unnecessary
Lower Insulation test
Insulation testing only
No need to swap to continuity range
Lower insulation range
Frequently <0.1MΩ is
Extended range shows resistance
Competitors extend
Combats the extended low range
Improved Bluetooth
Difficult to pair, download
Simple Download paring, and
No lost data or wasted
range
range down to 1kΩ
pairing
and insulation test ranges
extends down to 100k
mistaken for
a low (zero) resistance path
downwards to 100Ω
and delete records
one setting
PASS FAIL testing
when working below 100KΩs
down to 1k Ωs
from Metrel
download of data
change of accidents when
looking away from the
circuit
range changing
allows extended
measurement, although
test voltage falls. This can
be seen on the secondary
display.
time.
Pairing initiated when PC
mode is selected.
WHY?
WHY?
3 Wire connection:
Most communications connections are 3 wire, either A-B-E (Europe and most other countries)
or T-R-G; Tip, Ring, Ground (North America). Making one 3-wire connection to the circuit is
safer and faster.
Each measurement can be swapped between the 3 pairs, A-B, A-E or B-E by pressing the
appropriate button on the MIT481/2 or 485/2.
Values are easily compared and no variation is encountered from reconnection of test leads
during the measurements.
This makes for much faster and more reliable testing.
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
New MIT480/2 Launch
WHY?
Differential measurement (∆Ω):
Comparing both the A-E and B-E resistances gives a good indication of the quality of the cable
pair. The difference should be small.
Manually deducting one value from another is time consuming and prone to error.
Using the ∆Ω in conjunction with the terminal switching function allows two pairs to be
compared quickly and without calculation errors.
Pressing the ∆Ω button after the first continuity measurement (say A-E) resets the value to
zero, and so a subsequent measurement will only show the difference.
This function works just the same way as the “Test lead null”, but test leads can be nulled first,
then the ∆Ω function used without interfering with the null mode.
WHY?
Continuity resistance with automatic reversal of polarity:
To meet European requirements for earth continuity testing (EN60364) and EN61557-4 the
requirement for performing continuity in both polarities must be met.
When enabled, the MIT performs a continuity test in one polarity, then reverses the
measurement and makes the same measurement in the other.
The result displayed is the higher of the two measurements, eg worst case.
Reasons for differences between measurements?
Direction devices, such as surge protection equipment may conduct in one polarity but not in
the other, providing an artificially low reading.
Equipment left connected to the supply will frequently interfere with measurements.
Low currents flowing in an earth circuit can significantly upset the accuracy or reported
resistance of a circuit.
EMFs generated due to connections between dissimilar metals
WHY?
Change to 6 batteries, not 4:
Six cells give the advantage of 20% extra capacity and the higher voltage. Combined with
better measurement economy, the new MIT480’s delivers increased battery life with better
charge status feedback.
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
PRODUCT FAMILY:
Function / Feature
481/2 485/2
Customer benefits
Variable voltage (1V steps)
Any desired application specific voltage from 10V to 500V in 1V steps - dedicated switch position
50V/100V
Low voltage test for Telecoms and Cable applications and sensitive electrical circuits
Standard electrical test voltage for LV circuits and devices where 500V could cause damage
Standard electrical test voltage
Allows degradation monitoring of good circuits
Gated 500V testing
Prevents unintentional selection and circuit damage. Requires LOCK to be pressed when selecting
Displays test range voltage
Easy range selection in poor lighting when selecting the test range
Displays actual test voltage
Know when test voltages drop below permissible limits during the test
Stabilized test voltage
Don't risk damage by over voltage on a test circuit. MIT480/2 are +2% +2V
Continuity
1 MΩ range
Reduced range swapping increases productivity
Selectable 20mA / 200mA
Reduced battery consumption when 200mA is not required
Reverse polarity
Identifies asymmetric circuit resistances
Lead null
Removes test lead resistance and difference measurements
Fast buzzer
Quick circuit confirmation increases productivity
Trms AC Volts / mVolts
Trms for asymmetric voltage waveforms (such as VSD circuits) from 0.mV to 600V
DC Volts / mVolts
High input impedance t prevent voltage drop during measurement
10MΩ i/p Impedance
mA current
Direct measurement of circuit current in mA
Frequency
250 kΩ I/P impedance
Loads the circuit so reducing the presence of ghost voltages
1nF to 10uF
Confirmation that circuit capacitance is not excessive
Storage/DL
MIN/Max
Results storage
Store results for later recording or performance monitoring
Downloading
Export to PC for long term storage
Software provided
No need for expensive software to export results
This chart provides a comparison between the MIT480/2 models.
Insulation
250V
500V
100 GΩs
Other tests
Other features
3 Terminal connection
Connect all three leads once
3 Terminal switching
Switch between connections without disconnecting leads
Alkaline/NiMH
Choice of rechargeable cells to reduce operational costs
Rechargeable enabled
Can be recharged with batteries in-situ
Alk/NiMH battery level
Provides better battery level monitoring by changing battery voltage (1.5V Alkaline or 1.2V NiMH)
Ergonomic case design
Designed to be held for long periods without fatigue
Analogue arc with pointer
Charge and discharge characteristics of insulation testing circuits
CATIV 600V
Safe on all low voltage installations
IP54
Water resistant and dust resistant for extended operational life
Limit alarms
PASS / FAIL buzzer alarms where values are not required
Silicone lead set
PVC leads leak above 4GΩ giving incorrect measurement values
Remote switch probe
Do not remove your eyes from the circuit under test
Grabber test leads
Red and Black small jaw crocs for tricky locations, small wires etc.
Batteries included
Alkaline included - NiMH available as optional as part of the charging kit
3 year warranty option
Reduced cost of ownership
New MIT480/2 Launch
OPT OPT
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
New MIT480/2 Launch
PRODUCT USES
MIT480/2 series are not just for telecommunications and cable testing. CATIV 600V ensures the
widest range of applications are covered, including standard electrical and specialist testing.
Examples:
Telecommunications:
A-B, A-E and B-E testing
(T-R, T-G and R-G)
All three connections in one go
Capacitance measurement
Distance by capacitance
Resistance balance measurement
Live circuit detection
Cable TV:
A-B, A-E and B-E testing
T-R, T-G and R-G
Open capacitance measurement
50V, 100V & 500V Insulation testing
Capacitance measurement
Specialist testing:
Bespoke applications
No need for DAR or PI
Strain gauge failure
Diagnostics
Automotive solenoid testing
Megger Instruments Limited MJH/June 2016
MIT480/2 Launch
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