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Electrical testinstruments
New productsMFT1741 multifunctioninstallation tester igh-speed loop tester with confidenceHmeterDCM305E earth leakage anddiagnostic clamp rings new resolution to solving yourBRCD and RCBO tripping problemsMIT480/2 series insulationand continuity meter -terminal testing simplified with3internal switchingAVO800 series multimeters he multimeters with all the features anTelectrical contractor would useKeep in touch with MeggerFollow us on Twitter atwww.twitter.com/meggerukWatch our videos on YouTube atwww.youtube.com/meggeruk2Don’t miss out!You can extend the warranty of many Megger testinstruments shown in this catalogue to three years, freeof charge, simply by registering the purchase of theproduct. This is in addition to the free technical supportFind us on Facebook atwww.facebook.com/meggerukavailable for the life of your new Megger instrument.Or visit our website atwww.megger.com/ukweb site or the supplied reply paid card.Electrical test instrumentsProduct registration is available either using the Meggerwww.megger.com
There’s more happening than youthink . . .CONTENTSMultifunction testers. 4-6Insulation and continuity testersfor electrical engineers. 7-11for communications engineers.34Loop impedance testers. 12-15RCD testers. 15-17Voltage and phase testers . 18-19Helpful test leads .19Clamp meters and clampmultimeters . 20-22Multimeters . 23-24Meter test box .25Irradiance meters and kits .26Portable appliance testing orPAT testers . 27-30Power quality analysers.31Earth electrode resistance testers. 32-33Fault locators or TDRs for powerand telecom applications . 34-36Prices. 37-41Trying to decide which Meggertester is best for you?Why not call the Megger technical desk?They’ll talk through your needs and theway you work and help you make the rightdecision for your business.Call01304 502 102www.megger.comElectrical testing is one of those areas where nothing muchseems to have changed for the last ten or more years. Thetests are still the same and, at first glance, we’re still using thesame sorts of instruments. But dig a little deeper and you’llfind the reality is rather different.While it’s true that the basic principles of testing were setmany years ago, Megger continues to push forward withinnovation in this sector, always with the aim of making lifeeasier, safer and more convenient for its customers.In 2006, for example, we pioneered two-wire non-trip looptesting which built on existing principles and techniques.And now, with our new MFT1741 multifunction tester,we’ve introduced an entirely new model for loop impedancetesting. This gives faster and more accurate measurementsthan are possible with current methods, especially whentesting on systems with high electrical noise levels or circuitswith phantom impedances.Take a few minutes to look through this catalogue, andyou’ll find a whole range of other innovations, all developedspecifically to help you work more efficiently and moreprofitably. Maybe not much has changed in recent yearswith instruments from other suppliers but, at Megger, theinnovation never stops!Power onKeeping your customers’ power on is essentialfor the success of your business. That is whywe are dedicated to creating, reliable, easyto-use portable test equipment that makesyour business more efficient; and backing themup with world-leading support and expertisewhen you need a helping hand.We can assist your certification andmaintenance testing for predictive,diagnostic or routine purposes. By workingclosely with electrical contractors, bothlarge and small, standards bodies andscheme providers, we contribute to thedependability and advancement ofthe electrical installation industry.Power on with Megger!3
Multifunction testersMFT1701 seriesThe MFT1701 series is tough, even tougher thanits popular predecessor. It won’t go bang whenconnected across phases, when it gets dropped orbounced, when it’s used in the rain, when the wrongrange is selected or when accidentally connected to livecircuits – even with the test locked on!Dust and rain proof to IP54, the MFT1701 series offers CATIV safety, meaning that you can use it in any environmentwithout a second thought. To make it more convenient, testbuttons are located at either end of the tester meaning youcan use the hand that is available to initiate testing, or youcan use the CAT IV probe with test button if you prefer.We have changed the features on each of the testers,introducing useful functions such as ZMAX and Auto RCD onthe complete range. Even the carry case has been re-thought;there is now a large soft carry case on the MFT1731. TheMFT1711 is the perfect single-phase tester for domestic workwhile the MFT1721 and MFT1731 are three-phase testersextending the applications in to the commercial and industrialarenas.With the changing market, and the opportunity thatinstallation of vehicle charging points affords, the MFT1731now offers a selection of earth electrode tests.Trade ef ThTool o atyear alicElectr rysIndu t 018s2AwardAWWIN ARDPRO NINGDUOFC201 T8!Loop testing rangesn 2 and 3-wire non-trip with resolution of 0.01Ω L-PEn L-PE 48 V to 280 V, 45 Hz to 65Hzn High current loop testing L–L and L-Nn L-L 48 V to 480 V, 45 Hz to 65Hz dependanton modeln Tests through 30 mA RCDsn PFC or PSCC measurement at same time as loopresistancen Auto-start loop testRCD testing rangesn Auto RCD on all testersn RCD Ramp test to measure exact RCD tripping currentn Type A, AC, B, Selective, programmable and 3-phaseRCDs dependant on modeln Auto-start RCD test dependant on modelContinuity and resistance testing rangen 200 mA test with an option of 15 mA on MFT1721,MFT1731 and MFT1741n Auto-start continuity testn Easy test lead null – stored even when switched offn Fast buzzer with adjustable threshold on all testersn Resistance measurement from 0.01 Ω to 99.9 kΩInsulation testing rangesn 250 V, 500 V and 1000 V on all models and 1100V onMFT1721, MFT1731 and MFT1741n Test voltage displayed during insulation resistancemeasurementn Adjustable buzzer threshold on MFT1721, MFT1731 andMFT1741n 25 V or 50 V test inhibit optionn Protection against live circuits up to600 V even when test locked-onVoltage, phase rotation and frequency test rangen 10 V – 600 V a.c. / d.c. Trms on all modelsn Phase rotation on MFT1721, MFT1731 and MFT1741n Frequency measurement 15 Hz to 400 Hzn Touch voltageLarge bright dual parameter displayn Displays test voltage at the same time as insulationresistancen Displays loop resistance and prospective fault currentn Enhanced viewing angle with intelligent backlightEarth electrode testing on MFT1731and MFT1741n Tests unconnected earth electroderesistance - 3-wire testn Tests with electrode connected to system- ART 3-wire test requires optionalMCC1010 clampn Stakeless or clamp-on technique –Requires optional MCC1010 andMVC1010 clampsn 2-wire testingTake a closer lookuk.megger.com/MFT17014Electrical test instrumentsCommunications on MFT1731 and MFT1741n Bluetooth downloadingn On-board memoryn Cells rechargeable in situ on MFT1731 and MFT1741www.megger.com
MFT seriesaccessoriesEarth loop impedancerangesConventional 3-wire no-trip test L-PEMFT1711MFT1721MFT1731NEWMFT1741 New algorithm 3-wire no-trip test L-PE Confidence meter Tests through 10 mA RCDs1001-991B3-wire test lead set Tests through 30 mA RCDs 2-wire no-trip test L-PE L-PE 48 V to 280 V, 45 Hz to 65 Hz 2-wire high current test L-N / L-E 48 V to 280 V, 45 Hz to 65 Hz L-N / L-E 48 V to 480 V, 45 Hz to 65 HzPSCC or PFC calculations displayed with loopimpedanceUp to 20 kA fault current ZMAX value retained Calculated R1 R2Insulation resistance range250 V, 500 V and 1 kV test voltages 100 V test voltageApplied voltage display Adjustable buzzer thresholdContinuity and resistancerangeVoltage, frequency andphase rotation rangerange 200 mA test current for certification Auto-start continuity test Adjustable buzzer threshold 10 V to 600 V AC and DC True RMS Frequency 15 Hz to 400 Hz 10, 30, 100, 300, 500 mA RCDs 1 0 and 180 phase angle High speed auto RCD test Ramp test for RCD fault finding Type A, type AC and type S RCDs Programmable RCDs Type B (pure DC) RCDs 3-phase (no earth) RCDs Option of 25 V and 50 V output Ground noise check Touch voltage display 0 V to 253V1002-490BRed, blue and greenprobes and clips /2 I, I and 5 I testsEarth electrode resistance 1000 mA RCDs1001-8103-wire earth electrode test set Phase rotationRCD testing range Full protection against live circuits15 mA test current to prolong battery life1001-975B3-wire 10 A fused test lead set Stakeless or clamp on testing**3-wire testing for fall of potential or 62%ruleAttached rod technique 3-pole testingIntelligent safety systemAdditional benefitsTest inhibit Safe contact Live safety warning Auto discharge Analogue arc Probe incorporating test button Current measurement 0.1 mA to 200 A* On-board recharging On-board memoryBluetooth downloading from memory orblobbingHard plastic carry case Weather and dust proof to IP54 Safety rated to CAT IV 300 V FREE calibration certificate 1 year warranty, upgradeable to 3 years FREE Large soft carry case*Requires optionalMCC1010**Requires optionalMCC1010 and MVC1010
Multifunction tester with looptest confidence meterMFT1741 Faster, smarter 3-wire non-trip looptesting Confidence meter for stable resultson noisy 3 wire circuits Results unaffected by RCD and RCBOimpedance Tests through 10 mA RCDs and RCBOs 2 -wire non-trip loop testing wherethere is no neutral H igh speed 2-wire high current looptesting for unprotected circuitst Insulation testing C ontinuity and resistancemeasurement P hase rotation rue RMS voltage and frequency TmeasurementAWAWIN RDNPRO INGDUOF 2 CT018! ingle and 3-phase RCD testing S arth electrode testing E est results storage T echargeable batteries RHave renewed confidence in your 3-wire non-trip looptesting. The key differences between MFT1741 and rest ofthe multifunction tester range is the completely new internalhardware architecture, a unique loop testing algorithm thatshows the degree of confidence that can be placed on theresults.When loop testing on a quiet circuit, the MFT1741 quicklyreturns a provisional reading and an arc is displayed. Thisvery rapidly diminishes to a single element, indicating thatthe user can be highly confident of the result. The final resultis normally available within 8 seconds compared with thestandard test time of 15 seconds.On noisy circuits the tester displays a reading as the arcgradually shrinks. The result can be taken while the meteris in this ‘less confident’ phase but, given time, the arc willdiminish to the single element, high confidence state. Ifadditional noise is detected while the arc is diminishing, itwill expand again, indicating increased uncertainty, beforereducing to a single element, high confidence state, this isaccompanied by a noise symbol appearing on the display.The results delivered by the MFT1741 are unaffected byany impedance of the RCD or RCBO in the circuit. Thelikelihood of tripping the RCD or RCBO during test is nowall but removed, whilst the meter retains the capability oftesting Type AC, Type A and Type B breakers. In addition,the MFT1741 can carry out a no-trip loop test on circuitsprotected by 10mA RCDs or RCBOs, often seen in speciallocations, schools and hospitals.On starting the test thecomplete arc is showndisplaying a lack of confidencein the reading.The arc diminishes until onlyone element remains showinghigh confidence in the result.As confidence in the readingincreases, the arc shrinks unlessthere is additional electricalnoise.The MFT1741 confidentlyreports the full result.ToolTrade yearof The tricalcat Ele trysudnIs 2018draAwIn all other functions and features the MFT1741 is identicalto the MFT1731. See page 5 for features.Take a closer lookuk.megger.com/MFT17416Electrical test instrumentsTopProdu201 ctProfe 8 bysElect sionalr& Ins iciantal2018 lerwww.megger.com
Insulation and continuity testersMIT200 seriesMIT220 and MIT230 are two of the smallest insulation testers availableBoth products have a combination of digital readout andanalogue display, using Megger’s patented DART displaytechnology. The display includes a clear, accurate digital readout, and an analogue pointer response for evaluating circuitcharge and discharge characteristics.The tough ABS instrument housing is designed to withstandthe rigours of hard use, whilst small enough to drop into yourpocket when not in use. In addition, a useful battery statusindication is always displayed.Continuity testing There is a choice of two or three test voltageranges providing an ideal solution to most lowvoltage insulation testing applications Insulation measurement up to 1000 MΩ on allranges Auto discharge ensures all circuits are safelydischarged after testing 1000 V insulation test ranges have a high voltagewarning prior to test voltage being appliedSpecial Features Automatic continuity testing is performed at200 mA to ensure compliance with internationalrequirements. No need to press the test button Exceptional value for money All instruments will measure up to 100 Ω oncontinuity, of which 0-10 Ω is performed at greaterthan 200 mA Pocket sized tester Live circuit protected Lead null is possible up to 9.99 Ω ensuring theability to null fused test leads as well as standardleads V oltage protection should you touch a live circuit Continuity buzzer provides a means of rapid cabletesting and circuit identification, with voltageprotection should you accidentally touch a livecircuit T he buzzer operates at a 5 Ω threshold Insulation testingMIT200 series accessories1002-001B2 wire test lead set1002-015B2-wire 500 mA fused testlead setMIT220250 V and 500 V test ranges to 1000 MΩMIT230n250 V, 500 V and 1000 V test ranges to 1000 MΩnContinuity (200 mA) measurementnnVoltage detectionnnIntelligent safety systemnnFast buzzer rangennDisplay backlightnnCATIII 600 VnnIEC61010nnWarranty upgradeable to 3 years FREEnnTake a closer lookuk.megger.com/MIT200www.megger.com7
Insulation and continuity testersMIT300 seriesThe Megger insulation testers are like no other testers you have usedMegger insulation testers are designed to takethe knocks that happen when working on site.They are rubber armoured and have an integral solid lid toprotect the display.The heavy-duty hinge allows the lid to be locked awaybeneath when in use, making it easy to use and impossibleto lose.And you don’t need to pull out the test leads to shut the lid.These safety features look after you andthe tester – S afety interlock to prevent unsafe connection ofthe test leads Safe contact detector keeping you and your testersafe during continuity testing if it’s accidentallyconnected to a live circuit Live voltage warning alerts the user to a circuitvoltage over 25 V when insulation testing Safety lockouts –The Megger MIT insulation testers are easy to use andquick to learnThere are no buried functions, so it is easy to use theseinsulation testers.– Prevents continuity testing onlive circuits– Prevents insulation testing when circuitvoltage is greater than 50 VThe colour coding helps test selection, speeding up testingtime and helping you identify faults fast.The quick start guide in the lid keeps all the basic informationat hand if you need it.No need for third hand!The best place for a test button is on the probe.By using a switched probe rather than aYourstandardsafety isoneMegger’snumberthere isno longer a need toaway from the probe to find the TESTone lookconcernbutton on the instrument, or use a third handif both are already holding the probes. Simplypress the button already under your finger.Definitely safer and quicker.Hands free operationMIT300 series insulation testers are well balanced to hangcomfortably around your neck enabling hands free operationwhen you need it.The continuity test and buzzer start automatically when youconnect to a circuit, saving you time.Insulation tests can be started using a switched probe or thetest button on the front of the tester.Packed with features Thick rubber armoured case Clear colour coded selectors Large, easy to read display Super grip test-leads with lock oncroc clips Auto-start continuity test Tough and easy to use Safe Weatherproof to IP54 USB downloading on MIT3308Electrical test instrumentswww.megger.com
Insulation and continuity testersFeaturesHandy neck strap for hands freeoperation.Clear range selector for poor lightconditions.MIT320 comes with switchedprobe and calibration certificateDouble hinge keeps screen free fromscratches or swings under to snapout of sight.Shutter to prevent hazardous leadcombinations.Take a closer lookuk.megger.com/MIT300MIT seriesaccessories1002-491BRed and black probes andclipsInsulation testingMIT300MIT310MIT320MIT310AAnalogueMIT330250 Vnnnnn500 Vnnnnnnnnn1000 MΩ1000 MΩ1000 MΩ1000 MΩ1000 VTest range1000 MΩInsulation limit alarm 0.01 MΩ to 999 MΩContinuity testing1007-156Remote switched probewith special plug1002-015B2-wire 500 mA fused testlead set1002-001B2 wire test lead setnnnnnContinuity buzzernnnnnLead null to 9 Ωnnn 1 2 ΩnAdjustable buzzer 1 to 100 ΩnAudible buzzer disablenVoltage measurementVolts AC/DCResistance measurement10 Ω to 1 MΩ range600 V600 VVoltage warningn600 VnnnnBacklit displaynnBacklit selector rangesnnnnLocking test buttonnnnAuto power-downnnnnnnSwitched test probenData storagennDownload via USB portwww.megger.com600 VnDefault voltmeterIncluded accessoriesnnn10 Ω to 2 KΩ rangeFeaturesnContinuity to 100 ΩnIP54 weatherproofnnnnnAccepts rechargeable batteriesnnnnn2 wire lead setnnnnFree calibration certificatennnWarranty upgradeable to 3 years FREEnnn9nnnn
Insulation and continuity tester forelectrical and industrial maintenanceMIT400/2 seriesA range of insulation and continuity testers in an ergonomicdesign with the latest measurement techniques and livecircuit protection.The MIT400/2 series insulation and continuity testers nowhave faster continuity testing and stabilised insulation testvoltages for more accurate and productive installation testing.Insulation testing has the addition of feedback control tostabilise the test voltage to less than 2% over voltage, forsafer and more accurate measurement.Variable test voltage is also available from 10V to 1000V.Continuity testing is now fully automatic from0.01 ohms to 1 MΩ with fast contact detectionwhilst continuously protecting against accidental contact withlive circuits.The diagnostic insulation tests, such as Polarisation Index andDielectric Absorption Ratio, offered by the MIT400/2 seriesallow trending of the performance of motors. This makes itideal for the engineer working in the industrial maintenancesector who needs to plan maintenance or some more solidevidence when taking a motor out of service.Features include: Designed for the electrical and industrialmarkets Stabilised insulation test to -0% 2% test voltage to minimise installation stress Variable insulation test voltage from10 V to 1000 VTake a closer lookuk.megger.com/MIT400-2Accessories Single range, faster continuity testing from0.01 ohm to 1 Mohm Insulation testing up to 1000 V and200 Gohm in a hand held instrument Rechargeable options for mains and carcharging1002-001B2 wire test lead set1007-637MIT2500 only 600 V Trms AC and DC voltage measurement Test result storage and Bluetooth downloading Live circuit detection and protection CATIV 600 V application and IP54 environmentalprotection10Electrical test instruments1002-015B2-wire 500 mA fused testlead set1007-464 Charger kitMIT430/2 and MIT2500onlywww.megger.com
Hand-held insulation and continuitytester for higher voltage applicationsMIT2500The MIT2500 is the smallest 2500V hand heldinsulation tester on the market.Features include:Additional “Variable Voltage” allows any voltage from 50 Vto 2500 V to be selected. Tough enough for the industrial and electricalmaintenanceOutput voltage is stabilised to-0% 2% for accurate testmeasurement without riskingover-voltage on the circuit. Insulation testing up to 2500 V and200 Gohm in a hand held instrument Guard terminal for high insulation resistanceaccuracy Variable insulation test voltage from50 V to 2500 VComplete with PolarisationIndex (PI) and Dielectric AbsorptionRatio (DAR) testing, test resultstorage anddownloading. Stabilised insulation test to -0% 2% testvoltage Single range, faster continuity testing from0.01 ohm to 1 Mohm Diagnostic testing with Polarisation Index (PI)and Dielectric Absorption Ratio (DAR) Rechargeable options for mains andcar charging Test result storage and Bluetooth downloading Live circuit detection and protection CATIV 600 V application and IP54 environmentalprotectionTake a closer lookuk.megger.com/MIT2500Insulation test nnn2.5 kV250 V , 500 V and 1 kVn50 V and 100 VnnVariable from 10 V to 1 kVnn200 GΩ200 GΩVariable from 50 V to 2.5 kVInsulation resistance ton200 GΩ200 GΩnnnnnnnnn100 Ωnnnnnnnn 10 ΩPI, DAR and timedLock onGuard terminalContinuity0.01 Ω to 1 MΩnAuto reverse polarityVoltage measurement200 GΩTest lead null 10 Ω 10 Ω 10 Ω 10 Ω600 V AC / DCnnnnnmV AC / DCnnnnn15 - 400 Hz15 - 400 Hz15 - 400 Hz15 - 400 HznnnnnnnFrequency measurementCapacitanceCapacitance 0.1 nF -10 µFAdditional benefitsPASS / FAIL limit alarmAuto power downnnnnnCan be powered by AA alkaline ornnnnnnnnnnnnnn3 -wire setsNiMH batteriesRecharger readyOn-board memoryBluetooth downloading and software2-wire silicone lead setnnnnnOptionalCAT IV 600 VCAT IV 600 VCAT IV 600 VCAT IV 600 VCAT IV 600 VProbe incorporating test buttonSafetyDust and weather-proof to IP54nnnnnFREE calibration certificatennnnnWarranty upgradeable to 3 years FREEnnnnn
2-wire non-trippingloop testersLTW series2 wire testingThe loop test is performed with only 2 test leads. Thiscan be either: Phase to Earth Phase to Neutral Phase to Phase (depending on model)Testing is simple. There is no need for a third wire whichcould cause confusion in identifying the part of the circuitunder test.Non-trip loop testingLTW series testers do not trip working RCDs or RCBOs of 30mA or greater, using the non-trip loop test.Noise detection on non-trip testsLTW uses sophisticated noise detection circuitry whichcontinually monitors the supply during a loop test to ensurethe accuracy of the result has not been affected by electricalnoise from plant and services.Two operational modes are available:a) P erforms a 10 second test and if noise is detected awarning is displayed.b) Automatically extends a test to improve the accuracy.High current loop testingFor supplies that are not RCD protected the high current testcan be used, as there is no risk of tripping the RCD.The popular LTW325 comescomplete, ready for workAuto startAn auto-start function will start the test as soon as thecircuit voltage is detected, removing the need of a thirdhand and allowing for much faster testing.Three-phase safeThe instruments will operate from 50 V phase to earth, upto 440 V phase to phase with the exception of the LTW315which operates between 110 V and 280 V.High resolution testLTW425 offers a high current, high resolution loop test tothree decimal places (0.001 Ω).PFC DisplayAll instruments can calculate PFC and PSCC up to20 kA and the LTW425 can calculate up to 40 kA using the0.001 high current, resolution test range.Packed with featuresUses only two wires to loop testWill not trip RCDs while loop testingWill not take out 6 A MCBsClear easy to read display3-phase safe50 V to 480 V operationPFC displayStable test resultsUSB downloading on LTW335Max Z facility, not on LTW315Calculated R1 R2, not on LTW315Take a closer lookuk.megger.com/LTW300 anduk.megger.com/LTW40012Electrical test instrumentswww.megger.com
High current loop testerLT300The LT300 offers high current loop testing over a wide rangeof frequencies and supply voltages with simple, fast, twowire operation making it ideal for use on generator supplies.Frequency rangeSupply frequency is indicated upon connection and theLT300 will automatically set to the supply frequency either16 Hz, 33 Hz, 50/60 Hz, 125 Hz or 400 Hz. Testing willcommence automatically.Loop measurementTwo loop impedance ranges are provided.Specialfeatures High current looptesting Wide range offrequencies20 Ω - Resolution to 0.01 Ω Wide range ofsupply voltages200 Ω - Resolution to 0.1 Ω CATIV 300 VSupply voltageOperational supply range extends from 50 V to 550 V(400 V @ 16 Hz), with a warning for voltages over330 V highlighting accidental phase to phase connectionson a nominal 230 V system.Take a closer lookuk.megger.com/LT300Loop testingLT300 series accessories1003-132B2 wire test lead set1004-323BUK mains test lead set1001-977B2-wire 10 A fused test lead setLTW315LTW325LTW335LTW4252-wire non-tripping loop testingnnnn2-wire high current, fast, loop testingnnnnnOperating range 110 V to 280 VnnnnnnnnnnnnnnnnnOperating range 50 V to 440 VOperating range 50 V to 550 VnPhase to phase testingPFC range 20 kAnPFC range 40 kAResolution 0.01 ohmnnnnResolution 0.001 ohmnAutomatic noise detectionnnnnAutomatic test startnnnnnFrequency measurementnnnnnnnnnMax Zs displayCalculated R1 R2 displaynnnBack lit displaynnnnBuilt-in fold away covernnnnnQuick start guide in covernnnnnnTest result storagenDownloading of test resultsIncluded accessoriesStandardswww.megger.comnn16 Hz to 400 Hz operationFeaturesLT300nAccepts rechargeable batteriesnnnnStorage and carry casennnnn2-wire lead set complete with crock clipsnnnnOptionalMains socket lead setnnnnOptionalFree calibration certificatennnnIEC61010-1 CATIV 300 VnnnnnEN61557nnnnnWeather- and dust-proof to IP54nnnnnWarranty upgradeable to 3 years FREEnnnnn13
1000 A loopimpedance meterNIM1000With a selectable test current up to1000 A, the NIM1000 at last provides thecommissioning engineer with the ability toaccurately measure the loop impedanceof a circuit, even close to the source ofsupply.The impedance meter triggers load-sensitive aswell as neutral faults, allowing detection of weakcontacts and other hidden flaws. Depending on theearthing conditions of the test grid, it is possible to carryout multi-phase measurements to calculate the impedance ofthe neutral conductor to detect defects that can cause severesafety issues.Given the complexity of the measurements the NIM1000 iscapable of taking, it remains a versatile, easy to use device,measuring current capacity under real-life conditions,determining voltage dips from given loads and performingtests on cables, supply lines as well as bus bars. It can be usedto confirm design parameters when commissioning as well asa routine preventative maintenance tool.Test current80 A to 1000 A 1000 A at 400 V(input voltage 600 A at 230 Vdependant)Operational accuracy3% 1 digitBetween 10 mΩ and 5 Ω(at sufficient test current)Test parametersZImpedance (value andRResistance (real part)phase)Features Automatic single and threephase testingXReactance (imaginary part)ZPENImpedance value PENUrmsRMS voltageImaxMaximum test current(calculated) High resolution to 0.001Ω for loop testing close totransformer CATIV systemsIsShort circuit currentSkvContinuous short circuitfNetwork frequencyVDVoltage drop at nominalpower Absolute impedancemeasurement or separateResistance and Reactanceconnected power (in %)Maximum connectedPmax Measures both phase andneutral conductors – up tothe 10th harmonicpower at nominalvoltage drop Variable test current up to1000 AmpsZ, R, X and ZPENare displayed for thepower frequency up to Result storage and downloadto USB stick Simple to operate withnumerical and graphicalresults on a colour displayTake a closer lookuk.megger.com/NIM100014Electrical test instrumentsthe 10th harmonic(phase-N, phase-phase)Safety ratingDust and weather proofCAT IV 300 VIP53The NIM1000 gives a cleardisplay of the real (Re) andimaginary (Im) components ofthe measured loop impedance.www.megger.com
Combined loop and RCD testersLRCD200 seriesThe LRCD200 series is a combined non-tripping loop testand RCD test instruments. It provides simple, affordable andflexible test tools for electrical contractors testing energisedcircuits. The instruments are supplied with a full Meggercalibration certificate.Both LRCD210 and LRCD220 testers offerLoop testing Non-tripping 3 wire low current loop test providesmeasurements from 0.01 Ω to 2 kΩ RCDs and RCBOs rated at 30 mA or less are nottripped when loop impedance testing High current 2-wire fast loop test (LRDC220 only) 415 V Phase to phase loop measurement (LRCD220only) Auto-ranging tests PFC button shows calculated PFC/PSCC resultwithout re-testing Supply voltage displayed on connection to circuit Supply frequency measurementFeatures Safety interlock to prevent unsafe connectionof the test leads PFC calculation and display 3 phase safe – even when connected acrossphases, both you and the tester will remainsafe Touch voltag
n Test voltage displayed during insulation resistance measurement n Adjustable buzzer threshold on MFT1721, MFT1731 and MFT1741 n 25 V or 50 V test inhibit option n Protection against live circuits up to 600 V even when test locked-on Voltage, phase rotation and frequency test range n 10 V - 600 V a.c. / d.c. Trms on all models
