Transformer-a-to-z-testing-ready-catalogue

Set type MTO210 complete with test lead set including memory / download functions, with standard accessories type TTR300 Series compete will all standard accessories.. standard accesso

J 2007/2008

Item Description

analogue bar graph and standard accessories

accessories

standard accessories

Set type MTO210 complete with test lead set

including memory / download functions, with standard accessories

type TTR300 Series compete will all standard accessories

TTR100 with standard accessories

accessories

Item Description

550005 complete with standard accessories

supply, all standard accessories, RS232 interface and software, hot collar straps and tap connectors, operation voltage 230V AC, 50Hz

Delta 3000 complete with all standard accessories.

accessories

insulation test set type MCT1600.

standard accessories

class 0.1 for Meter Testing as well as CT / VT Testing complete with Test leads, Three 100 Amp Clamps, Scanning Head & Software

and Test System

with software

Item Description

with all standard accessories

Factor/Water content) for Power Transformers type IDEX300 with all standard accessories and software (AG-19090)

measurement on Switchgear & Transformer)

Transformer consisting of:

- Partial Discharge Test Hardware type OSM

Longshot – WR Xi (4-ch PD Analyser) with HFCT Sensor, TEV Probes, Mini Pulse Generator, 36kV, 850pF High Voltage Coupling Capacitor, Variable Gain Amplifier, Test Cables

- Hardware Package Includes Carry Case, Mini Keyboard, Optical Mouse & Mouse mat and 80GB USB Portable Hard Disk (for storage and transfer of PD Gold data files)

- Partial Discharge Test Software type PD Gold + PD Reader (Data Analysis Software) + PD Waveform Capture & Analysis Software

Option - AC High Voltage Low Discharge System for Offline Testing can be provided on request

accessories

Item Description

standard accessories

complete with standard accessories

Note: Other Versions with different Capacities can be provided on

request.

Gases)

Mobil GC version2, consisting of :

-GC with TCD, one channel column, automatic injector valve, Software for detection of 11 fault gases in 19” portable case

- 2 Detector FID (Flame Ionisation detector) for more

- Methanizer (filled with catalytic powder)

- 2 column ( Molesiev column 30m x 0,53mm

inner diam.) for detection of O, N, H2

- column switch for autom Measurement Procedure

-Partial vacuum degassing according to DIN/IEC 567 consists of:

Oil syringe incl access

3 port valve

gas volume syringe

gas injection syringe

-Operating manual

Item Description

IEC567 /ASTM 3612 type Top Toga GC.

Hydrosoft software for data transfer and data administration

with additional Water in oil/ moisture measurement

on request

A complete transformer repair workshop including Winding / Rewinding Coil Winding Machines, Ovens, Essential Tools and other Accessories can be provided on request

1.General Purpose

Electrical Test Equipment

for Transformers

Item 1A

Digial Multimeter

■ Designed for Electricians

■ Fully auto ranging

■ Large display characters

■ Separate battery and fuse cover

The AVO300 range of Megger digital multi-meters are tough

compact instruments designed for the contracting

electri-cian, but are also suitable for a wide range of

applications and users

Both instruments offer a range of measurement modes

for AC and DC applications, resistance and current

measurement

The AVO300 series multi-meters have tough rubber

armoured cases offering the maximum amount of

protection from the extreme use found in modern

industrial environments They draw on extensive

experience of Megger engineers in designing safe reliable

instruments for the electrical industry

Neither of the instruments are burdened with functions that

never get used This keeps the instruments simple to

oper-ate without the continued need to refer to the user manual

Auto-ranging

Every measurement range is fully auto-ranging Simply

switch on the instrument and start testing, leaving hands

free for holding probes, or hanging onto ladders

Separate Battery/Fuse compartment

The battery and fuse compartment are accessed by a

sepa-rate cover on the back This allows both battery and fuses to

be replaced without opening the main instrument body, and

if the meter is sealed with a calibration seal, will not break

the seal and invalidate the calibration A problem found on

most commonly available multi-meters

Large clear display

The LCD display has large high contrast 31/2 digit displaywhich are easily read from a distance Additionally theAVO310 has a backlit LCD for use in poor lighting and a bargraph range showing the percentage of range used

Data HOLD

This allows a displayed result to be held on the display untilneeded, rather than trying to remember a measurement.The result will be held until the HOLD button is pressedagain, or until the unit switches off

MODE

When making current measurements the mode functionallow the selection of AC or DC measurement

MAX/MIN (AVO310 only)

The Max/Min function on the AVO310 freezes the maximum

or minimum measured result on the screen The displaydoes not have to be continually watched to capture amomentary increase or fall in circuit voltage, resistance orcurrent

Voltage measurement

Both AC and DC voltage measurement is possible with theinstrument auto ranging to match the voltage at the testprobes

Voltage measurements up to 1000V are permitted withoutdamage to the instrument

Current measurement

Three ranges are provided for current measurement ofeither AC or DC current from 0.1uA to 10A Fused inputsprotect both the user and the instrument in the case ofexcess current

Technical:

Insulation:

Class2, Double insulation

Overvoltage category: (AVO300/310)

CATIII 600V / CATII1000V

Display AVO300:

4000 counts LCD display, 25.4mm high

"OL" mark indication

Low battery indication: A Battery symbol is displayed when thebattery voltage drops below the operating level

Measurement rate

2 times per second nominal

Auto power off AVO300:

Meter automatically shuts down after approx 15 minutes ofinactivity

Pollution degree 2

Resistance, continuity and Diode testing

Resistance can be measured directly on the ohms range

from 0ohms up to 1.999Mohms A continuity buzzer range is

also available for checking low resistance between two

points The buzzer sounding if the resistance is less than

50ohms (35ohms on the AVO310)

Additionally a diode range exists for testing forward and

reverse bias operation of transistors and diodes

Additional features

A low battery indicator warns when batteries are low, and an

auto-off function ensures no unnecessary battery wastage

occurs if accidentally left on

A built-in rear stand provides both a bench stand for

com-fortable use on the bench, as well as extending round 180°

to act as a hanging bracket

Tough Rubber Armoured case Y Y

Separate fuse and battery cover Y Y

Overload Protection: 0.5 A / 1000 V and 10 A / 1000 V Fuse.

Maximum Input: 4000 µA dc on µA range

AC Response: 50Hz to 400HzMaximum Input: 4000 µA ac rms on µA

Input Protection: 1000 V d.c or 1000 V a.c rms

AVO300: Diode Test

0.3mA typical/Open

<1.5 V 1 mV +10% of rdg ±5 digitsOpen circuit voltage: 1.5 V dc typical

Overload protection: 1000 V d.c or 1000 a.c V rms

AVO310: Diode Test

1mA typical/

Open MAX.3 V 1 mV +10% of rdg ±5 digitsOpen circuit voltage:

MAX 3 V dc Overload protection: 1000 V d.c or 100 V a.c rms

Audible continuity Audible threshold:

+1% of rdg ±5 digits

+0.8% of rdg ±2 digits+1.5% of rdg ±5 digits

+3% of rdg ±8 digits

+1.0% of rdg ±3 digits

Item (Qty) Order Code

Digital multimeter CATIII 600V with Min/Max and backlight AVO310

Included Accessories

Test leads and Probes

Optional Accessories

ORDERING INFORMATION

Item 1B

MFT1500 Series

Combined Insulation, Loop & RCD Tester

DESCRIPTION

The MFT1500 series multifunction tester has been revised to

include some additional new features:

Called the MFT1500 series, they retain all the essential

features necessary for testing domestic, commercial and

industrial fixed wiring, and now include the following:

■ PFC measurement on both loop test ranges

■ Selectable Fault (Touch) voltage 25 V or 50 V

■ Fault (Touch) voltage display

■ New Megger lead set included with all instruments

■ DC test functions for RCDs

All instruments test in accordance with International

Standards and National Wiring Regulations including BS7671

(16th Edition wiring regulations) and European Standard

EN61557

In addition, the MFT1500 series also meets or exceeds the

requirements of EN61010-1 Category III 480 V (max)

phase-phase

The MFT1500 is available in 4 options, the standard

MFT1501/2 the MFT1502/2 which includes useful additional

facilities such as backlit display and range switches, plus the

unique Megger illuminated switched probe, the MFT1552

which has an automatic RCD test feature, and the MFT1553

which has Bluetooth downloading capability

The unique modern styling of the instruments allows it to

be operated whilst stood on the floor, a ledge, hung around

the neck with the supplied neck strap, or held in the hand

FEATURES

The MFT1500 series uses the patented Megger digital/analogue arc display The analogue arc provides an indication of fluctuating readings, while the digital readoutproviding the ability to record accurate results

All test functions are selectable from the main panel, with

no hidden ranges or functions to forget

Special functions include:

VOLTAGE MEASUREMENT

■AC/DC Volt meter provides a means of measuring the supply voltage independently of any other test functions,eliminating the need to carry a separate multimeter.Automatic selection of AC or DC measurement up to

500 V a.c./d.c

CONTINUITY TESTING

■200 mA continuity from 0.01 1 to 99.9 k1 exceeds allcurrent requirements for testing final ring circuitconductors, and bonding of services

the test probes touch the circuit to be tested, allowingfast testing with both hands free

■Fast continuity buzzer is a fast buzzer tone, with no

delay on each test for the buzzer to sound, savingvaluable operator time This test includes a fast safetycheck for the presence of a voltage as the test probesare connected to the circuit

■ Combined 16th Edition testing

■ Guaranteed non-tripping loop test range

■ Backlit display and selector ranges

■ Automatic RCD testing (MFT1552 &

MFT1553 only)

■ Bluetooth downloading (MFT1553 only)

■ Illuminated switch probe

■ Selectable touch voltage

■ Touch (fault) voltage and display

■ Calibrated earth loop test lead

■ Calibration certificate

■Variable buzzer threshold controls the limit at which

the continuity buzzer stops sounding Selected from 2 1

to 100 1 in 6 steps

■Lead null stores the test lead resistance and deducts this

value from the continuity result, even if the instrument is

switched off Thus reducing the chance of possible

measurement errors

Insulation testing:

■Insulation test at 250 V, 500 V and 1000 V for testing

low voltage applications A 1000 V warning is issued

prior to performing the 1000 V insulation test

continuity measurements a live circuit warning is

displayed and an audible warning sounded if connected

to a circuit with a voltage greater than 25 V (15 V for

continuity testing)

■Safety lockout at voltages greater than 55 V during

continuity and insulation testing, the instrument

automatically warns the operator and inhibits any

testing, preventing accidental damage to the instrument

and full protection to the operator

■The ‘Auto discharge’ facility safely discharges all

circuits after an insulation test, preventing accidental

shock from a stored charge on a long cable during or

after disconnection

LOOP TESTING

■Low current loop test is a 3 wire non-tripping

0.011 loop test designed to prevent RCD tripping by

using a sophisticated 15 mA loop test pioneered by

Megger Limited This NO-TRIP test ensures the RCD will

not trip whilst performing a loop impedance test

■High current loop test at 25 A provides a fast loop test

where no RCD is fitted, or for Ze measurement on the

incoming side of an RCD

connection to the mains supply the polarity and voltage

are displayed to show correct wiring of the socket under

test or test lead connections This function also provides

a warning of live voltages while continuity or insulation

testing

are possible No danger of damage from accidental

3-phase connection

55 V to 480 V No damage if accidentally connected

across phases

PSC range, using either the 25 A high current loop test or

no-trip test, is provided for rapid measurement of Loop

currents, both at the socket outlet and distribution

board The PSC ranges from 1 A to 19.9 kA with a

resolution of 1 A, 10 A and 100 A depending on range All

the loop and PSC tests are auto-ranging

RCD TESTING:

from 10 mA to 1000 mA are fully supported All standardRCD test functions are available with both 0° and 180°phase angle at 1/2 I, I and 5I up to 300 mA.

ramp test displays the actual trip current on all RCDranges instead of trip time Ideal for identifying nuisancetripping RCDs The current is stepped up from 1/2 I to I in

ranges and no hidden functions the MFT1500 series takesminutes to learn how to use Function buttons arecolour matched to the test mode to ensure easyoperation

paramount with live circuit warning and protectioncircuitry If live voltages exist on a circuit duringinsulation or continuity testing the voltage is displayed

on the screen If this voltage exceeds a safe level, theMFT1500 series inhibits further testing and a warningbeeper sounds for extra safety

digital/analogue arc technology - combining high speedanalogue clarity with digital stability Making it easy toread even in low light level

shut off facility that operates after 5 minutes of inactivity,reducing wasted battery consumption

for the MFT1500 series The unique shutter systemallows only those combinations of test leads permittedfor safe testing to be connected Unsafe or unnecessaryoptions cannot be connected

moulding provides a secure comfortable hold, whilst providing maximum protection with IP54 weather proofrating

■Remote test button for single-handed testing in difficult

locations, the test button duplicates the instrument test

button in all test modes.

■LED torch using a built-in WHITE LED light provides

illu-mination to the probe tip, providing essential lighting in

low light conditions

the main instrument display A RED LED indicates a

voltage present on an insulation range A GREEN LED

indicates the instrument is displaying a valid test result

standard shrouded, removable shrouded and an extended

probe tip to provides the ideal probe tip option

backlight, but also the selector dials are illuminated to

allow for use in difficult low-light conditions Range or

function change automatically operates the backlight, or

by manual selection

transport the instrument as well as any necessary test

leads, documents, drawings etc

MFT1552 & MFT1553 Additional features

Selecting the auto (RCD) feature, starts the RCD test current

cycle of 1/2 I, I and 5I.

Each time the RCD is tripped, resetting it, automatically

continues the test sequence

Once completed, test results can be recalled on the

MFT1552 or MFT1553

MFT1553 Additional features

Using the Bluetooth function, download test results directly

into inspection certificates, within PowerSuite®running on

laptops and mobile devices for on-site certification

Alternatively the data can be downloaded into Mobile

Download Manager for storage and later processing

Polarity indicated above 10 V

Insulation test ranges (to EN 61557-2)

Short circuit current: <2 mA

250 V 0.01 M1 - 99.9 M1

500 V 0.01 M1 - 299 M1

1000 V 0.01 M1 - 499 M1

±2% ±2 digits up to 99 M1

250, 500 and 1 kV into 1 mA (BS7671, HD384 and IEC364)

Output voltage: +20% - 0% at rated load or less

Live circuit warnings Insulation:

0.011 - 99.9 1 (±2% ±2 digits)

1001 - 99.9 k1 (±5% ±2 digits)

Buzzer

Selectable limits of 2 1, 5 1, 10 1, 20 1, 50 1, 100 1Open circuit voltage 4-5 V d.c

Test current:

>200 mA @ 2 1

Test Lead null:

Up to 9.99 1 (zero uses Test Button)

Loop test ranges (to EN 61557-3)

Line/Earth(Single phase)

25 A

0.011 - 9.99 1 (±5% ±0.03 1)10.01 -89.9 1 (±5% ±0.5 1)

Prospective Shortcircuit Current PSC

Prospective fault current = Nominal Voltage/Loop ResistanceAccuracy is therefore derived from the loop test

1 A - 199 A 1 A resolution0.02 kA - 1.99 kA 10 A resolution2.0 kA - 19.9 kA 100 A resolution

RCD ranges (to EN-61557-6)

Supply:

100 V - 270 V 45Hz to 65Hz

Ranges:

1000 mA, 500 mA, 300 mA, 100 mA, 30 mA, 10 mA

Type: 1/2 I -1/2times the selected RCD rated current

I - One times selected RCD rated current.

5I - Five times I RCD rated current.

RAMP - A ramp test that displays actual trip current

DC sensitive - A DC test current at 1/2 I, I and 5I

Current accuracy:

No trip (1 / 2 I) -8% to -2%

Trip (I) and 5I+2% to +8%

Trip time accuracy:

±1% ±1 ms

Touch (Fault) voltage: 0 V to 100 V error ±5% to +15% ±0.5 V

Selection: 25 V or 50 V

Power supply

8 x 1.5 V Alkaline cells type LR6

Battery life: 2600 insulation tests with a duty cycle of 5 seconds

on and 25 seconds off at 500 k1

Fuses

Replaceable 500 mA (F) HBC 10 kA 500 V

Non-replaceable 7 A (SIBA 70-065-63) x 2

Non-replaceable 1 A

Remote probe: MFT1502/2, MFT1552 and MFT1553 only

Torch feature: 5mm WHITE LED 1500 mcd

Safety: CLASS 1 LED to IEC 60825:2001 Interchangeable tips

Battery: 1 x 9 V Alkaline cell type PP3

Fuse: Non-replaceable 7 A (SIBA 70-065-63)

Safety

Double insulated to IEC61010-1-2001, Installation Category III,

300 V phase to earth, 500 V phase to phase

In addition Probe designed to meet IEC 61010-031-2002, Doubleinsulated to Installation Category III, 300 V phase to earth, 500 Vphase to phase

EMC

In accordance with IEC 61326 including amendment No 1

Environmental Operating range: -5 to +40ºC Operating humidity: 90% RH at 40ºC max Storage temperature: -25 to 65ºC Maximum altitude: 2000 m

Dust and water protection: Instrument IP54, probe no rating

Physical Dimensions:150 mm high x 85 mm wide x 235 mm deep

(6 in x 3.5 in x 9.5 in.)

Weight:1440 gms (3lb) EN61557:

Complies with the following parts of 61557, electrical safety inlow voltage systems up to 1000 V a.c and 1500 V d.c.-Equipment for testing, measuring or monitoring of protectivemeasures:-

Part 1- General requirementsPart 2- Insulation resistancePart 3- Loop resistancePart 4- ContinuityPart 6- Residual current devices (RCD)Part 10- Combined measuring equipment

The Bluetooth word mark and logo are owned by the Bluetooth SIG Inc and any use of such marks by Megger is under licence.

Multifunction tester standard MFT1501/2

Multifunction tester with illuminated switch probe

MFT1502/2Multifunction tester standard (European) MTF1501/2E

Multifunction tester with illuminated switch

Multifunction tester with automatic RCD testing MFT1552

Multifunction tester with automatic

Accessories included with MFT1501

3 wire test lead

Crocodile clips (red, black and green)

Mains plug (BS1363) test lead

Additional accessories with MFT1502/MFT1552/MFT1553

As MFT1501/2 plus:

Illuminated switched probeInstrument/document carry case

Optional accessories for MFT1500 Series

PowerSuite On-site (MFT1553 only) 6111-777Replacement 3 wire test lead set 6220-796

Illuminated switched probe 6311-089Test lead with Schuko plug 6231-593Test lead with UK mains plug 6220-740Test lead with USA mains plug 6220-643

Instrument/document carry case 6420-143Illuminated probe tip set 6121-562

Item 1C

Products Guarantee 2 years

The screen on this clamp can be used either as a numeric display or

as a graphical screen like an oscilloscope, or as a logging

instru-ment The clamp measures the true RMS voltage and current,

appa-rent, reactive, active, balanced three-phase and single-phase power,

cosj, peak factor, total distortion, power consumption and maximum

power demand

In graphics mode, it displays and quantifies the first 50 harmonics of

the signal (simultaneously as a percentage of the fundamental

com-ponent and in volts, response in amperes), the form of the U and I

signals, the single-phase and three-phase diagram In logging

mode, the clamp stores information in its memory The sampling

fre-quency and the start/stop cues can be programmed Long

acquisi-tions at high frequencies, with several simultaneous quantities, are

possible by using an RS232 output to a PC and special software

ref VA6200

Total effective current – THD Harmonic current no.1 % harmonic no.1 / fundamental component

Three-phase diagram V1 V2 V3 I1 I2 I3 ϕ Oscillogram U and I Phase angle ϕ

OTHER FUNCTIONS

Measurement of the maximum demand in kW and kVA

Programmable threshold for transient capture (128 events)

32 to 256 points/cycle can be saved on the internal memory

Memory size: 50,000 logs can be programmed based on a period of between 1 and 6000s

Real time output of: oscillograms, power, settings and harmonics

Switches off automatically if not used

Optoisolated RS232 INTERFACE (8 bits, ASCII format) supplied as standard

System software for curve charts and numeric results on PC

OTHER FEATURES

Opening of clamping jaws: 6 55mm

Dimensions/Weight: 270 x 100 x 45mm Weight 800g

Supplied with probes and a carry case

IAC RMS 4.0 ~ 1500.0 A auto ranging 0.5% + 5 dgtVAC RMS 4.0 ~ 600.0 V auto ranging 0.5% + 5 dgt

W - VA - VAR 1000.0 W - 10.000 - 100.00 - 1000.0kW 1% + 20 dgtEnergy Wh kWh 0 Wh ~ 999 999 kWh (resp VAh &VARh) 1% + 20dgt

Total harmonic distortion 0.0 ~ 1000.0 % 2% - 6% - 10% (as per range)

IAC and VAC transients Capture of transient events (32000)

Peak current – THD - Harmonic spectrum

Reactive, active apparent power cos ϕ consumption

Item 1D

MIT400 CAT IV

Industrial Insulation Testers

DESCRIPTION

The new Megger MIT400 series insulation and continuity

testers has been designed for electrical testing by the

utilities, industrial, commercial and domestic electricians

The wide range of features also makes the MIT400 series

ideal for the maintenance and service/repair engineer

They replace the well-established BM400 insulation tester

range, given greater functionality with simplified operation,

greater application range and increased safety

The range

The range consists of five instruments:

MIT400 250 V, 500 V and 1000 V

MIT410 50 V, 100 V, 250 V, 500 V and 1000 V + PI, DAR

MIT420 50 V, 100 V, 250 V, 500 V & 1000 V + PI, DAR and

insulation test voltages available

■Test Lock - Locks insulation test on continuously.

■Test voltage display - The actual test voltage is displayed

on the smaller digital readout, with the insulation result

on the larger digital display

■ Analogue arc - The display also features an analogue arc

to replicate the response of a moving coil display

■ PI and DAR - Polarisation Index (PI) and Dielectric

Absorption Ratio (DAR) functions

■ 200 G1 - Insulation testing from 20 G1 (MIT400) to

200 G1 (MIT420 and MIT430)

■ Silicone leads - High quality flexible silicone test leads

are comfortable to use and prevent measurement errors

on higher G1 ranges

■ Test inhibit - prevents testing if voltages in excess of 50 V

are detected when making insulation tests

■ Insulation buzzer - The buzzer can be set to buzz if the

insulation resistance is above a preset limit, set via theSetup menu

CONTINUITY TESTING

■ Auto-test - Auto test on circuit contact enables real two

handed operation without the need to press the test button

test currents are available 20 mA test current will considerably increase battery life

operates up to 9 1 of resistance

■ Buzzer limit - Continuity buzzer limit alarm provides

adjustment of the maximum resistance the continuitybuzzer sounds This is adjustable from 1 1 to 20 1 in 5steps

■ CAT IV 600 V applications

■ TRMS & DC Voltage measurement

■ Insulation testing up to 1000 V and

200 G 1

■ Continuity testing at 200 mA or 20 mA down to 0.01 1

■ Pass/Fail limit alarms

■ Combined Analogue and dual digital display

■ PI/DAR and Timer function

■ Test result storage (MIT420)

(MIT430)

■ k1 range extends resistance measurement to 1 M1.

DISPLAY

The display offers a combination of analogue arc and a dual

digital readout:

Analogue arc:

■ Full display width analogue arc

■ Patented arc display shows essential charge and discharge

characteristics not visible on a digital display

■ Single pointer “needle” response is similar to a moving

coil meter

■ Logarithmic display for better low insulation value

measurements

Dual digital display:

■ Large main digital readout for good visibility of all main

measurement results

Insulation test voltage

Insulation leakage current

Supply frequency (when measuring volts)

Test mode eg PI, DAR or TI (Timed mode)

MIT40X - VARIABLE INSULATION VOLTAGE

TESTER.

The MIT40X provides a unique solution for awkward

insulation voltage measurement applications The MIT40X

has a variable insulation test voltage from 10 V to 100 V in

1 V steps, selectable in the “Set-Up” menu Once selected

this can only be changed by re-configuring in the Setup

menu

Typical applications include:

■ Commercial avionics

■ Military land, marine and air communications

■ Manufacturing/production line goods

■ Electrostatic measurement

■ Component testing

■ Battery powered traction and lifting equipment

STORAGE & DOWNLOADING RESULTS

MIT420

The MIT420 is capable of saving test results for recall to the

screen A simple storage structure allows for a test number

and screen results to be recalled individually

MIT430

The MIT430 supports both test result storage and

down-loading

Test results can be stored in the instrument and

subse-quently downloaded to a computer with the Megger

down-load manager software

Data transfer is by Bluetooth, with the MIT485 Bluetooth

transmitter being enabled when the Download mode isselected on the instrument

NOTE: The receiving PC needs to have Bluetooth capability

or a USB port fitted a Bluetooth receiver Class II (10m) isacceptable

SAFETY

Designed to be exceptionally safe to use, fast detecting circuitry prevents damage to the instruments if accidentallyconnected to live circuits or across phases Specifically, allinstruments:

■Meet the international requirements of IEC1010-2 andEN61557

■Live circuit detection inhibits insulation testing on circuitsabove 50 V

■Live circuit detection and test inhibit on continuity measurements

■Default display of live circuit voltage on all ranges

■Detection and inhibit functions even if the protectionfuse has failed

■Suitable for use on CAT IV applications and supply voltages to 600 V

600 V CAT IV

All MIT400 instruments are designed to meet the safetyrequirements for use on CAT IV 600 V

APPLICATIONS

(A) Electrical installations testing:

The MIT400 includes all the features required for electricians and engineers working in a range of industries.Available features are selected to make testing easy and fast

in a range of situations Typical industries include:

Electrical supply companiesLarge and small scale electrical installationPeriodic inspection and testing

Cable testing

(B) Service, repair and maintenance:

The MIT410 and MIT420 add additional features requiredfor engineers working on more demanding applications.Functions such as PI and DAR, capacitance measurementand higher insulation range increase the suitability for applications such as:

Manufacturing/production testingPanel building

Railway and other transportationMotor testing

Cable inspection/quality controlStreet lighting maintenanceAvionics ground testing and maintenanceMilitary applications

MIT40X 10 V to 100 V variable (1 V increments)

Insulation resistance range

MIT420, 430 200 G1

Range Full Scale Accuracy

1000 volts ±3% ±2 digits ±0.2% per G1

500 volts ±3% ±2 digits ±0.4% per G1

250 volts ±3% ±2 digits ±0.8% per G1

100 volts ±3% ±2 digits ±2.0% per G1

50 volts ±3% ±2 digits ±4.0% per G1

10 volts ±3% ±2 digits ±2.0% per 100 M1

Analogue range: 1 G1 full scale

Short Circuit Current: 2 mA +0% -50%

Terminal voltage: -0% +20% ±1 V

Test Current on load:

1 mA at min pass value of insulation specified in BS7671, HD384

and IEC364, 2 mA max

EN61557 Operating range: 0,10 M1 to 1,00 G1

Leakage Current: 10% ±3 digits

Voltage display: 3% ±3 digits ±0.5% of rated

voltage

Polarisation Index (PI): 10 min / 1minute ratio

Dielectric Absorption Ratio (DAR): 60 sec / 30 sec ratio

Notes:

(1) All ranges measure from 0,00 M1 upwards

(2) Above specifications only apply when high quality silicone leads

are being used

Continuity

Measurement: 0,011 to 99,9 1 (0 to 100 1 on

analogue scale)

Open circuit voltage: 5 V ±1 V

Test current: 200 mA (–0 mA +20 mA)

(0.011 to 9.99 1)20mA (±1 mA ) (10.01 to 99.9 1)

Zero offset at probe tips: 0,101 typical

Lead resistance zeroing: Up to 9,00 1

Buzzer: Variable limit 1 1, 2 1, 5 1,

Open circuit voltage: 5 V ±1 V

Short circuit current: 20 µA ± 5 µA

Voltage range

0 to 600 V d.c ±2% ±2 digits

10 mV to 600 V TRMS sinusoidal (40 to 400 Hz) ±2% ±2 digits

0 to 1000 V on Analogue scaleUnspecified input level 0 - 10 mV (40 to 400 Hz)

For non-sinusoidal waveforms additional specification apply:

±3% ±2 digits 101 mV to 600 V TRMS and ±8% ±2 digits 10 mV to

100 mV TRMS

Default Voltmeter: Operates at >25 V a.c or d.c

on any range except OFF

Capacitance range: 40 nF/m to 60 nF/m

Result storage

Bluetooth Class: Class II

Power Supply:

5 x 1,5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) AlkalineNiMH rechargeable cells may be used

Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55

sec OFF @ 1000 V into 1 M1

Dimensions Instrument: 220 x 92 x 50 mm (8.66 in x 3.63 in x 1.97 in.)

Instrument + case: 456 x 178 x 89 mm (18 in x 7 in x 3.5 in.)

Weight Instrument only: 590 gms, 775 gms with boot (20.73 oz

(27.22 oz.)

Instrument plus case: 1.75kg (3.86 lb)

Fuse

Use only a 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of high

breaking capacity HBC 50 kA minimum Glass fuses MUST NOT be

fitted

Safety Protection

The instruments meet EN 61010-1 (1995) to 600 V phase to earth,Category IV Refer to safety warnings supplied

ORDERING INFORMATION

Basic CATIV 600 V with 250 V/500 V/1000 V insulation

MIT400-EN

As MIT400 + 50 V, 100 V, PI and DAR MIT410-EN

As MIT410 + result storage and recall MIT420-EN

Bluetooth downloading version of MIT420 MIT430-EN

Special selectable voltage 10-100 V MIT40X-EN

Included accessories

Test leads: 2 wire lead set to CAT IV 600 V, consisting of :

1 x Red lead 1.25m complete with probe

1 x Black lead 1.25m complete with probe

1 x Red croc clip

1 x Black croc clip

1 x instrument rubber boot

1 x Calibration certificate (not included with MIT40X)

1 x Switched probe (not included with MIT400)Owners information CD

Optional accessories

Operating humidity: 90% RH at 40°C max

Storage temperature range: -25 to +70°C

Calibration Temperature: +20°C

Maximum altitude: 2000 m

Dust and water protection:

IP54 Protected against dust and splashing water

TheBluetooth word mark and logo are owned by the Bluetooth SIG, Inc and

any use of such marks by Megger is under license.

Item 1E

MIT520/2 and MIT1020/2

5 kV and 10 kV Insulation Resistance

Testers

I CAT IV 600 V

I Mains or battery powered

I Variable test voltage from 50 to 5000 or 10,000 V

I Automatic IR, PI, DAR, SV and DD tests

The new 5 and 10 kV insulation resistance testers from

Megger are designed specifically to assist you with the

testing and maintenance of high voltage electrical

equipment IEEE 43-2000 recommends the use of 10 kV for

motor windings rated above 12 kV and the Megger

MIT1020/2 facilitates this The case is incredibly rugged and

easy to carry, being made of tough polypropylene and

achieving an ingress protection rating of IP65 In addition,

the model number is marked on both sides of the case for

ease of identification in stores or vehicles

The instruments have a large easy to read backlit LCD

display making it equally suitable for use in both bright

sunlight and poorly lit environments Information displayed

includes resistance, voltage, leakage current, capacitance,

battery status and time constant In addition, the elapsed

time of the test is displayed constantly, removing the need

for separate timers Adjustable timers and limit alarms are

included

The instrument can test when being powered by the mains

or its internal rechargeable battery, a great benefit when site

conditions are unknown or long term testing is required

The controls of the instrument are clear and unambiguous

and a "quick start" guide is included in the lid of the

instrument removing the need to carry bulky manuals

under site conditions

The instrument is fitted with a guard terminal to enhanceaccuracy The guard test lead is included as standard withthe instrument

To further enhance the flexibility of the instruments bothhave the facility to set the test voltage in steps from 50 V tothe maximum output voltage avoiding the expense ofseveral insulation resistance testers to meet your applicationneeds

These IR instruments are designed to meet the highestsafety standards and meet the requirements of EN61010 Inaddition, the instrument measures the voltage at theterminals and if this is above 50 V then the instrument willdisplay the high voltage warning and inhibit testing At theend of the test the instrument will automatically dischargethe energy transferred to the equipment during the testphase

The MIT520/2 and MIT1020/2 are equally suited to routinetesting and diagnostic regimes being pre-programmed with

IR, PI, DAR, SV and DD profiles

Real time output

Serial, once per second of test voltage, current and resistance

MIT520/2 battery life

Typical capacity is 6 hours continuous testing at 5 kV with a 100 MΩ

load

MIT1020/2 battery life

Typical capacity is 4 hours continuous testing at 10 kV with a 100

Capacitor charge time

<3 seconds per µF at 3mA to 5 kV (MIT520/2)

<5 seconds per µF at 3mA to 10 kV (MIT1020/2)

Capacitor discharge time

<120ms per µF to discharge from 5000 V to 50 V (MIT520/2)

<250ms per µF to discharge from 10000 V to 50 V (MIT1020/2)

Capacitance measurement (above 500 V)

10 nF to 50 µF (dependent on measurement voltage)

Capacitance measurement accuracy (23°C)

±5% ±5 nF

Voltage output accuracy (0°C to 30°C)

+4%, -0%, ±10 V of nominal test voltage at 1 GΩload

Current measurement range

0.01 nA to 5 mA

Current measurement accuracy (23°C)

±5% ±0.2 nA at all voltages

Interference rejection

MIT520/2 1 mA per 250 V up to a maximum of 2 mA

MIT1020/2 1 mA per 600 V up a maximum of 2 mA

Timer range

Up to 99 minutes and 59 seconds from start of test

15 second minimum setting for test voltage ≥1000 V

30 second minimum setting for test voltage <1000 V

Voltage, test time, leakage current, resistance, PI, DAR, DD,

capacitance and time constant

Registered to ISO 9001:2000 Cert no Q 09250 Registered to ISO 14001-1996 Cert no EMS 61597

5 kV insulation resistance tester MIT520/2

10 kV insulation resistance tester MIT1020/2

Included Accessories

3 m lead set insulated clips 6220-820

3 x 3 m lead set insulated clips (MIT1020/2 only) 6220-811

Optional Accessories

HV test lead sets

3 x 3 m un-insulated small clips 8101-181

3 x 8 m un-insulated small clips 8101-182

3 x 15 un-insulated small clips 8101-183

3 x 10 m medium insulated clips 1000-441

3 x 15 m medium insulated clips 1000-442

3 x 3 m large insulated clips 6220-811

3 x 10 m large insulated clips 1000-443

3 x 15 m large insulated clips 1000-432

Control circuit test lead sets

2 x 3 m control circuit, small insulated clips 6220-822

Screened HV test leads

2.Winding Resistance

Testing

Item 2A

The MTO210 Transformer Ohmmeter is a line-operated,

field-portable instrument designed specifically to measure

the dc resistance of all types of magnetic windings safely

and accurately It can test rotating machine windings and

perform low-current resistance measurements on

connections, contacts and control circuits

The MTO210 employs a patented “Quick Test”

measurement technique, which stabilizes the measurement

current in the shortest time possible in order to

significantly reduce test times

Also, the dual set of potential inputs measures the

resistance of the primary and secondary windings of a

single- or three-phase transformer simultaneously This

dual reading characteristic, along with the bi-directional

current output capability, also help to speed up the

measurements when used to test windings on three-phase

transformers

The Transformer Ohmmeter is extremely useful when

testing the windings and contact resistance of tap-changers

with “make-before-break” contacts and voltage regulators

This action will check for pitted or misaligned contacts as

the instrument will give an indication if either condition

occurs

Users are protected by the auto-shutdown safety feature

Any inadvertent disconnection of a test lead or loss of

power to the instrument will safely discharge the energy

stored in the test sample

APPLICATIONS

The MTO210 Transformer Ohmmeter is used:

■ To verify factory test readings

■ As part of a regular maintenance program

■ To help locate the presence of defects in transformers,such as loose connections

■ To check the “make-before-break” operation of on-loadtap-changers

A regular maintenance program that includes windingresistance measurements is the most effective way to usethis instrument Once a benchmark is established,subsequent test results can be compared to determine ifchanges are occurring in the transformers and associatedcontrol wiring, voltage regulators, motors, generators,breaker contacts, and all types of connections (bolted,soldered, crimped, etc.)

Tap-changers are mechanical devices and the mostvulnerable part of a transformer Tap-changers result inmore failures and outages than any other component and

so require frequent testing and attention to ensure proper,reliable operation

FEATURES AND BENEFITS

■ Direct 2-channel digital reading allows for testing windings at a time without the need for time-consumingbridge balancing

two-■ Patented “Quick Test” measurement technique minimizestest time

■ User-selectable maximum current range ensuresprotection of small transformers

■ Bi-directional current output capability allows the unit totake advantage of any existing magnetization of thetransformer core to help stabilize test currents quicker inorder to reduce test times

■ Built-in demagnetization circuitry allows the operator tode-magnetize the transformer core, either before orupon completion of resistance testing, or as a stand-alone feature

MTO210

Transformer Ohmmeter

Item (Qty) Cat No Optional Accessories

Potential leads, 66 ft (20m) [2pr] 37179Current leads, 66 ft (20 m) [2 pr] 37180

Printer (includes battery/line powered serial thermal printer, printer interface cable)

PowerDB (full version) software DB1007

AC power cord (IEC60320-C13 to US standard) 17032

AC power cord (IEC60320-C13 to Schuko CEE 7/7) 17032-13

Canvas carrying bag (for leadset) 30915-211

Registered to ISO 9001:2000 Cert no 10006.01

SPECIFICATIONS Input

120/240 V, 50/60 Hz, 720 VA

Output Current Range: Up to 10 A (dc) Open-Circuit Test Voltage: up to 50 V dc Resistance measurement/display Resistance: 1µΩ to 2000 Ω

Accuracy: ±0.25% reading, ±0.25% full scale (when current has

stabilized)

Resolution: Up to 6 digits Environmental Operating: 14° F to 122° F (-10° C to 50° C) Storage: 5° F to 158° F (-15° C to +70° C) Relative Humidity: 0-90% non-condensing Displays

Two 1” high, 6 character, 7-segment, LCDsOne 0.71” high, 6 character, 7-segment, LCD

Print to optional 4 inch strip thermal paper printer

■ The MTO210 allows for test of transformers with

on-load tap-changers and provides a “break-before-make”

indicator, in the event of any discontinuity

■ Beacon drive circuit is provided for use with optional

beacon strobe light

■ For those users who choose to create an external

interlock safety fence, a safety interlock circuit is

provided

■ Remote trigger switch is provided for testing

transformers with tap-changers

■ Internal flash memory allows for mass storage of dataset

records, for later recall, printing, and analysis

■ Ruggedized Kelvin clamps, with 4 inch (100 mm) jaws,

are provided eliminating the need for bushing adapters

■ Field upgradeable firmware

■ Compatible with PowerDB software package

■ Built-in discharge circuit safely discharges the specimen

when test is completed, if lead accidentally disconnects

■ Ideal for use in shop or substation environments

because of its light weight and portability

Item 2B

DLRO 10 and DLRO 10X

Digital Microhmmeter

DESCRIPTION

DLRO 10 and DLRO 10X set the standards for low resistance

measurement DLRO 10 and DLRO 10X are fully automatic

instruments, selecting the most suitable test current up to 10A d.c

to measure resistance from 0.1 µΩ to 2000 Ω, on one of seven

ranges

For users who desire more control over the measurement process,

DLRO 10X uses a menu system controlled by a two-axis paddle to

allow the user to manually select the maximum test current

DLRO 10X also adds real time download of results and on board

storage for later download to a PC

Both instruments are built into a strong, lightweight case that is

equally at home in the field or in the laboratory Light enough to

be worn around the neck, they are small enough to be taken into

areas that were previously too small to access

DLRO 10 uses a large, bright 4 1/2 -digit LED display while DLRO

10X has a large, backlit LCD display Normally, measurements are

made with forward and reverse currents to cancel the effects of

any standing voltages across the test sample

The average value is then displayed within 3 seconds, to a basic

accuracy of 0.2% DLRO 10X displays both forward and reverse

measurements as well as the average of the two

DLRO 10X allows the user to set high and low pass limits, thereby

enabling simple go-no-go testing

At the end of a test DLRO10X will store the test results, as well as

any notes relevant to the test

To assist operator safety and ease of use, both instruments aresupplied complete with a pair of duplex handspikes with 1.2 m (4 ft) leads One of the probes is fitted with LED’s, whichduplicate indicators on the instrument display indicating that allfour contacts have been made, the presence of a high voltageacross the load, and the presence of current flow while a load isdischarging A full range of test leads is available with probes,clamps and Kelvin clips

Nickel Metal Hydride (NiMH) batteries power the instruments.The battery packs are interchange-able so that an exhaustedbattery may be recharged using the external charger suppliedwhile testing continues using a spare pack Although full chargingwill take 4 hours, a fast charge mode allows the battery to be 90%charged within 2 1/2 hours from a 12 volt battery or from astandard 120/230 V AC supply via the supplied charger Thebattery pack contains its own battery state indicator, which allowsthe charge-state to be monitored, even without being connected

■ Auto current reversal cancels standing emfs

FEATURES AND BENEFITS

■Small, lightweight and portable - can be used in tight places,reduces the need for extra long leads and two personoperation

■Four terminal resistance method shows the true resistance ofthe item under test

■Bright LED (DLRO 10) and LCD (DLRO 10X) displays are easilyvisible under all lighting conditions and reduce human error

■Automatically applies forward and reverse currents which cancelout any standing voltages across the sample under test

■Checks for undue noise during measurement, reducing thepossibility of recording the incorrect result

■Automatically detects continuity in P and C circuits, preventingerroneously high reading to be taken due to high resistancecontact

■Battery module has a battery condition indicator allowing theuser to check the state of spare batteries without connecting tothe instrument

■RS232 connector on the DLRO 10X allows downloading ofresults in real time or stored for later retrieval

DLRO 10 will display the average of the measurements achieved

using forward and reverse current, while DLRO 10X displays both

individual measurements and the average

Normal mode initiates a test by pressing the Test button on the

instrument front panel after connecting the test leads Continuity

of all four connections is checked, forward and reverse currents

are applied

Auto mode allows forward and reverse current measurements to

be made and the average displayed simply by making contact

with all four probes This mode is ideal when working with the

supplied handspikes Each time the probes are removed and

reconnected to the load another test will be performed without

the need to press the test button on the instrument

Continuous mode allows repeated measurements to be made on

the same sample Simply connect the test leads and press the test

button The measurement is updated every 3 seconds until the

circuit is broken

Inductive mode is intended for use when measuring inductive

loads When measuring inductive loads it is necessary to wait for

the voltage to stabilise This means that the measurement could

take a few seconds or several minutes The test leads are firmly

connected to the item to be measured and the Test button is

pressed The instrument will pass a current through the sample

and wait for the voltage to stabilise If possible the current will be

increased This procedure will be repeated until the voltage

detected falls into the range 15 mV to 200 mV The instrument will

then continue to take readings, which will gradually decrease to

the true value as the voltage stabilises further The operator

decides when the result is stable and presses the Test button to

terminate the test Measurement is made with forward current only

Unidirectional mode, on DLRO 10X only, applies a current in

one direction only This does not enable any standing emfs to be

negated but speeds up the measurement process Test starts

automatically when probes are connected

APPLICATIONS

The needs for accurate low resistance measurement are well

known and very diverse They range through Goods Receiving

inspection of components to ground bonding and welded joints

Typical applications include, but are not limited to, making d.c

resistance measurements of:

■Switch and contact breaker resistance

■Busbar and cable joints

■Aircraft frame bonds and static control circuits

■Integrity of welded joints

■Inter-cell connections on battery systems up to 600 V peak

■Quality control of resistive components

■Transformer and motor winding resistance

■Rail and pipe bonds

■Metal alloys, welds and fuse resistance

■Graphite electrodes and other composites

■Wire and cable resistance

■Transmitter aerial and lightning conductor bonding

The DLROs are light enough to be worn around the neck Theyare also small enough to be taken into areas which werepreviously too cramped for easy testing

Manual, Auto, Continuous, Manual, Auto, Continuous,

Fully Automatic Fully Automatic/Manual

<3s for forward & reverse current and to display average41/2 digit seven segment LED

Single cycle reversing d.c ratiometric measurement -average result display

±10%

<10 ppm per second

100 mΩ total for 10A operation irrespective of battery condition

> 200 kΩLess than 1% ±20 digits additional error with 100 mV peak 50/60 Hz on the potential leads Warningwill show if hum or noise exceeds this level

Real Time or from storage via RS232

700 tests

Up to 256 characters per test via integral alphanumeric keypad

7 Ah NiMH rechargeableTypically 1000 x 10 A tests before rechargeVia External 90V - 260V 50/60 Hz charger or from 12 to 15V d.c supply2.5 hours to 90% capacity, 4 hrs for full charge

+5ºC to +45ºC (41ºF to 113ºF) at full specification-10ºC to +50ºC (14ºF to 122ºF) at reduced accuracy-30ºC to +70ºC (-22ºF to 158ºF)20ºC (68ºF)

<0.01% per ºC over range 5ºC to 40ºC

<0.01% per ºC from 5ºC to 40ºC (<0.006% per oF from 41ºF to 104ºF)0ºC to +45ºC (32ºF to 113ºF)

+10ºC to +45ºC (50ºF to 113ºF)90% RH @ 40ºC (104ºF) non-condensing2000m (6500 ft) to full safety specifications

In accordance with EN61010-1 600V Category IIIThe instrument meets EN50081-1 and EN50082-1 (1992)

220 x 100 x 237 mm (8.6 x 4 x 9.5 in)2.6 kg (5 3/4 lb.) including battery module

Maximum Lead Resistance:

Voltmeter input impedance:

ORDERING INFORMATION

DLRO 10 Digital Low Resistance Ohmmeter 6111-428

DLRO10X Digital Low Resistance Ohmmeter 6111-429

Complete with

7 Ah NiMH battery module 6340-101

DH4 Duplex handspikes (2),

one with indicator lights 1.2m / 4 ft 6111-503

Battery charger for operation from 115/230 V

Cigar lighter adapter for battery charging 6280-332

Optional Accessories at extra cost

Carrying case for DLRO10/10X

and all standard accessories 6380-138

Carrying case for optional lead sets 18313

Calibration Shunt,10 Ω, current rating 1 mA 249000

Calibration Shunt, 1 Ω, current rating 10 mA 249001

Calibration Shunt, 100 mΩ current rating 1A 249002

Calibration Shunt, 10 mΩ current rating 10 A 249003

Certificate of Calibration for Shunts, NIST CERT-NIST

Replacement tips for DH4, DH5 and DH6 handspikes

Optional Test Leads at extra cost

Duplex Leads

DH5 straight duplex handspikes (2)

One has indicator lights 2.5m/8ft 6111-517

DH6 Duplex handspikes (2) suitable

for working on 600 V systems 2.5m/8ft 6111-518

Duplex Handspikes (2) with spring

loaded helical contacts 2m/7ft 242011-7

2.5m/8ft 6111-0225.5m/18ft 242011-186m/20ft 6111-0239m/30ft 242011-30

Straight Duplex Handspikes (2)Heavy Duty with fixed contacts 2m/7ft 242002-7

5.5m/18ft 242002-189m/30ft 242002-30Duplex Heavy Duty 5cm (2")

5.5m/18ft 242004-189m/30ft 242004-30Duplex handspikes with replaceable

Duplex 1.27 cm (1/2 ")Kelvin Clips (2) gold plated 2m/7ft 241005-7

silver plated 2m/7ft 242005-7Duplex 3.8 cm (11/2")

Kelvin Clips (2) 2m/7ft 242006-7

5.5m/18ft 242006-189m/30ft 242006-30

Single Leads

Single handspike (1) for potential measurement 2m/7ft 242021-7

5.5m/18ft 242021-189m/30ft 242021-30Current clip (1) for current

5.5m/18ft 242041-189m/30ft 242041-30

Item 2C

Verification of the quality on electrical windings with control of

the absence of short-circuits

x Low energy test without damaging the coil

x 4 kind of waveform comparison methodes

x Up to 20 MSPS sampling rate

x Multi-trigger mode programmable

x Direct display of comparison results

Technical specifications

x Output impulse voltage : 500-5000V +/-3% +/-5V

Voltage control mode

x Normal : Voltage programmable on terminals when terminals

are open

x Contant : mantains voltage selected across the winding indipendent of changes of the winding impedance

x Sampling rate : 20MSPS/50nsec - 10MSPS/100nsec

x Sampling rate : 5MSPS/200nsec - 2.5MSPS/400nsec

x Sampling rate : 1.25MSPS/800nsec - 625kSPS/1600nsec

x Sampling rate : 312kSPS/3200nsec - 156kSPS/6400nsec

x Resolution : 8 bits

x Sampling points : 960 bytes

x Input impedance : 10Mohm (resistive voltage divider)

x Waveform measurement : Voltage, time, frequency

x Area size comparison

x Differential area comparison

x Corona discharge

x Differential phase comparison

x Area size repetition accuracy : +/- 1%

x Differential area repetition accuracy : +/- 1%

x Detection output : PASS/FAIL display, Alarm

x 60 groups of standard waveforms can be stored in internal

non-volatile memory

x 800 groups in the USB flash memory (optional)

x Interfaces: RS232-C, Handler, IEEE488, Scanner

3.Transformer Turn Ratio

Testing