The insulation resistance test, a.k.a., the “Megger test”, is as relevant as ever and, in many applications, is preferred to other insulation test methods. Today Megger offers the finest line of 5 kV, 10 kV and 15 kV (dc) insulation resistance testers available anywhere.

Insulation Tests

BM5200 Insulation Resistance Tester

  • 1 T Ω, 1.4 mA, 5 kV digital insulation tester with digital and analogue display
  • Five test ranges; 250 V, 500 V, 1000 V, 2500 V and 5000 V
  • Insulation (InS), Polarization Index (PI) and variable timed test (t) modes
  • Selectable DC or AC (including frequency) voltmeter functions
  • Guard terminal to shunt surface leakage currents
  • CATIII 600 V safety rating

Megger BM5200 is a battery powered insulation tester with digital and analogue arc display, designed for high voltage insulation resistance testing in the maintenance and servicing of cables, rotating plant machinery, transformers, switchgear and industrial applications.

DC insulation tests are performed at 250 V, 500 V, 1000 V, 2500 V, 5000 V. Insulation resistance measuring range is 100 k Ω to 1000 G Ω. Automatic discharge for capacitive circuits under test is provided and decaying voltage displayed.

Mit1025 10 Kv Diagnostic Insulation Resistance Tester

  • Measures up to 20 TΩ
  • PI, DAR, DD, SV and ramp test
  • Improved productivity – operate from line power/mains if battery dead
  • Li ion battery – extended capacity, rapid charge
  • Advanced memory with time/date stamp
  • CATIV 600 V safety rating

Offering CAT IV, the MIT1025 is compact, light 10 kV insulation resistance tester for the diagnostic testing and maintenance of high voltage electrical equipment. Enclosed in a tough case it is both smaller and lighter than its predecessor making it even easier to carry and store.

As well as measuring insulation resitance to 20 TΩ, the MIT1025 also offers various diagnostic tests such as Polarisation index, Dielectric Absorption Ratio, Step Voltage, Dielectric discharge and ramp testing.

Mit1525 15 KV Diagnostic Insulation Resistance Tester

  • Measures up to 30 TΩ
  • PI, DAR, DD, SV and ramp test
  • Improved productivity – operate from line power/mains if battery dead
  • Li ion battery – extended capacity, rapid charge
  • Advanced memory with time/date stamp
  • CATIV 600 V safety rating

Offering CAT IV safety, the MIT1525 is compact, light 15 kV insulation resistance tester for the diagnostic testing and maintenance of high voltage electrical equipment. It benefits from the Megger dual case construction, Tough on the outside and fire retardant on the inside.

MIT515 5 KV Go / No-Go Insulation Resistance Tester, Insulation Tester

  • Measures up to 10 TΩ
  • Selectable test voltage from 250 to 5000 V
  • PI, DAR, DD test
  • Improved productivity – operate from line power/mains if battery dead
  • Li ion battery – extended capacity, rapid charge
  • CATIV 600 V safety rating

Offering CAT IV, the MIT515 is the simplest of Megger’s new range of small light 5 kV insulation resistance testers for the testing and maintenance of high voltage electrical equipment. Enclosed in a tough case it is both smaller and lighter than its predecessor making it even easier to carry and store.

MIT525 5 KV Diagnostic Insulation Resistance Tester

  • Measures up to 10 TΩ
  • PI, DAR, DD, SV and ramp test
  • Improved productivity – operate from line power/mains if battery dead
  • Li ion battery – extended capacity, rapid charge
  • Advanced memory with time/date stamp
  • CATIV 600 V safety rating

Offering CAT IV, the MIT525 is compact, light 5 kV insulation resistance tester for the diagnostic testing and maintenance of high voltage electrical equipment. It is both smaller and lighter than its predecessor, making it even easier to carry and store.

As well as measuring insulation resistance to 10 TΩ, the MIT525 also offers various diagnostic tests such as polarisation index, dielectric absorption ratio, step voltage, dielectric discharge and ramp testing.

MIT400/2 series CAT IV Insulation Testers For Electrical And Industrial Maintenance Engineers

  • Insulation testing up to 1000 V and 200 GΩ range
  • Stabilised insulation test voltage (New)
  • Single range, faster continuity testing from 0.01 Ω to 1 MΩ (New)
  • 600 V Trms AC and DC voltage measurement
  • Live circuit detection and protection
  • User variable insulation test voltage from 100V to 1000V (New) depending on model
  • Test result storage and Bluetooth® downloading depending on model
  • Rechargeable options for mains and car charging (New)depending on model
  • CAT IV 600 V & IP54

The MIT400 mk2 series insulation and continuity testers are designed not just for Electrical and Industrial, but with an exceptionally wide range of applications from electrical installations, cable testing, motor testing, automotive, ESD, panel building, avionics, maintenance etc.

Insulation testing has been enhanced with feedback controlled test voltages to limit over-voltage to 2%, rather than the industry standard 10-20%.

A variable range has been added to allow any intermediate voltage from 50 V to 1000 V in 10 V steps, where application specific test voltages are required that do not appear in the standard ranges.

The range consists of four instruments:
MIT400/2            250 V, 500 V and 1000 V
MIT410/2            50 V, 100 V, 250 V, 500 V and 1000 V + Polarisation Index, Dielectric Absorption Ratio
MIT420/2            50 V, 100 V, 250 V, 500 V and 1000 V + Polarisation Index, Dielectric Absorption Ratio, Variable Test Voltage and result storage
MIT430/2            50 V, 100 V, 250 V, 500 V and 1000 V +Polarisation Index, Dielectric Absorption Ratio, Variable Test Voltage and Bluetooth download

Circuit breaker test equipment

DLRO100E, DLRO100X and DLRO100H 100 A Highly Portable Micro-Ohmmeter With Dual ground Safety

  • CAT IV 600 V for safe operation
  • Light, 100 A, battery powered unit for portability
  • High noise immunity for stable readings
  • Smooth DC output for circuit breaker testing
  • IP54 for protection against dust and moisture whilst testing
  • Save, download and delete results (DLRO100X and DLRO100H variants)
  • Remote operation, Bluetooth® and asset and result tagging (DLRO100H variants)

DLRO200 200 A Micro-Ohmeter

  • Small and weighs less than 15kg
  • Test currents from 10 A to 200 A d.c.
  • 0.1 µΩ best resolution
  • On board memory for up to 300 test results and notes
  • RS232 port to download stored results or for real time output to a printer
  • Supplied complete with 5m test leads and download software

Megger Ducter™ DLRO200 measures resistances between 0.1 µΩ and 1 Ω, at high currents.

MOM2 Hand-Held 200 A Micro-Ohmmeter

  • Up to 220 A
  • Battery powered
  • Light weighs only 1 kg
  • Safe test – DualGround™
  • Auto range: 1 μΩ to 1000 mΩ
  • Bluetoot® PC communication
  • Complies with IEEE and IEC standards

The MOM2 is designed to measure the resistance of circuit breaker contacts, bus-bar joints and other high-current links. This product is designed with safety, ease of use and versatility in mind.

MOM2 uses an ultra capacitor to generate the high output current. The ultra capacitor is able to store a huge amount of energy compared to conventional capacitors and can deliver very high current during the discharge thanks to its very low internal resistance. The microhmmeter can be used anywhere to measure a low resistance value with high accuracy.

Electricians' testers

Battery testing equipment

  • Determines health of lead-acid cells up to 2000 Ah
  • On-line testing with Pass/Warning/Fail calculations
  • Measures impedance, interconnection resistance and cell voltage
  • Windows CE operating system with 32 MB of memory
  • Measures float and ripple currents
  • Includes PowerDB LITE Management Software

The Megger BITE3 Battery Impedance Test Equipment determines the health of lead-acid cells up to 2000 Ah by taking measurements of the most important battery parameters. The BITE3 measures cell impedance, an internal ohmic test, cell voltage, intercell connection resistance and ripple current. And, for the first time in a battery instrument, the BITE3 measures float current and the harmonic content of the ripple current. There is even a built-in spectrum analyzer to show the harmonic content of the ripple current. It has firmware that can be upgraded through the Internet and supports multiple languages.

DLRO10HD 10 A Micro-Ohmmeter With Dual Power Diagnostics

  • High or low output power selection for condition diagnosis
  • Rechargeable battery or line power supply, continuous operation, even with dead battery
  • 10 A for 60 seconds, less time waiting to cool, great for charging inductance
  • High input protection to 600 V, inadvertent connection to line or UPS voltage will not blow a fuse
  • Heavy duty case: IP 65 lid closed, IP54 operational (battery operation only)
  • Rotary switch selects one of five test modes, including auto start on connection, giving ease of use

DLRO10HDX Dual Power 10 A Micro-Ohmmeter With Results Storage And Downloading

  • Onboard memory storage for test results up to 200 records (HDX only)
  • Download to PowerDB
  • Interchangeable test lead terminations
  • High or low output power selection for condition diagnosis
  • Operates from battery or AC mains supply
  • Protected to 600 V without blowing a fuse, test lead live voltage warning light
  • Heavy duty case: IP 65 lid closed, IP54 operational
  • Simple rotary switch selection of five test modes, including auto start on connection

Augmenting Megger’s Ducter™ range of 10 A micro-ohmmeters, the DLRO10HDX combines ultimate simplicity of operation with a rugged IP65 case designed for stable ground and bench operation and provides memory storage.

These units are powered from either rechargeable battery or mains power making it suitable for continuous testing in production line/repetitive use environments.

Earth testing

DET14C and DET24C Earth Resistance Clamp Testers

  • Elliptical clamp shape improves access to earth cables and straps up to 50 mm
  • Low maintenance flat jaw interface
  • Measures ground resistance from 0.05 Ω to 1500 Ω
  • Measures true RMS ground leakage current from 0.5 mA rms to 35 A rms
  • CAT IV 600 V safety rating
  • Backlit LCD display

The DET14C and DET24C represent a new generation of earth/ground clamp-on resistance testers. These instruments induce a test current into earth systems and measure ground resistance in multi ground installations without needing to disconnect the ground. They offer market leading access, advanced features, simple operation and CAT IV 600 V safety protection.

This clamp-on stake-less ground tester can also:

  • Balance elements of a ground to mitigate noise
  • Balance ground circuits
  • Measure continuity of ground circuits in headends and hubs

DET2/3 High Resolution Earth Tester

  • High resolution of 1 mΩ, ideal for large earth (ground) systems
  • Versatile tests modes
  • High accuracy for earth (ground) electrode grid and soil resistivity tests
  • Rechargeable battery power that can last all day with a fast re-charge (up to 10 hours)
  • Robust instrument with IP65 protection
  • Automatic test frequency selection, with filters and high current features
  • Diagnostic trace display
  • Data storage
  • Large colour display that shows numeric and graphical results
  • Optional earth testing kit (ETK) available

DET4TD2, DET4TR2, DET4TC2 and DET4TCR2 4-Terminal Earth Resistance and Soil Resistivity Testers

  • 2, 3 and 4 point testing
  • Stakeless or clamp-on testing option
  • ART (Attached Rod Technique) capability
  • Multiple, user selectable test frequencies
  • Resistance measurement range to 200 kΩ
    IP54 rated
  • Warning indicators prevent test failure
  • Simple one button operation
  • Included leads, stakes, calibration certificate and rugged carry case
  • Optional earth testing kit (ETK) available

The DET4 contractor series includes –

  • DET4TD2: Dry-cell battery powered basic 4-terminal tester
  • DET4TR2: Rechargeable battery powered basic 4-terminal tester
  • DET4TC2: Dry-cell battery powered 4-terminal tester with selectable test frequencies, greater measurement sensitivity and attached rod technique and stakeless measurement capability
  • DET4TCR2: Rechargeable battery powered 4-terminal tester with selectable test frequencies, greater measurement sensitivity and attached rod technique and stakeless measurement capability

Electric motor analysers

Baker AWA-IV Static Motor Analyser

  • Range includes 2 kV, 4 kV, 6 kV and 12 kV models
  • Testing capabilities include: surge, winding resistance,
  • Megohm, PI, DA, continuous ramp DC step-voltage, and DC hipot tests
  • 12 kV HO (high-output) version for performing surge tests on large motors and generators
  • Compatible with Baker PPX Power
  • Packs to extend insulation testing voltage range (6 kV, 12 kV and 12 kV HO versions only)
  • IEEE- and IEC-compliant surge test
    Surge waveform comparison by the patented Pulse to
  • Pulse Error Area Ratio (PP-EAR) technique
  • Incorporates advanced inter-turn assessment capabilities in a field portable instrument
  • Microsoft Windows 10 Embedded operating system
  • USB port for data transfer and printing with Windows 10 plug-and-play printers

Baker DX Static Motor Analyser

  • Comprehensive range of tests in one instrument
  • Configurable to meet needs and price point
  • 4 kV to 12 kV for wide spectrum of motors and coils
  • Compatible with the Baker PPX
  • Power Packs for testing up to 40 kV
  • High and low voltage tests to characterize circuits and insulation
  • Coil mode for rapid testing and data storage

In an industrial setting, the consequential cost of failure or unplanned downtime of critical rotating machinery can be significant. The Baker DX series can apply a wide set of off-line electrical tests to assess the condition of motors and coils.

In a motor repair shop, or for new production motors, the Baker DX gives confidence that a motor is correctly wound and insulated, before it’s deployed in the field.

Baker EXP4000 Dynamic Motor Analyser

  • Monitors and assesses conditions across a running “machine system” that impact the health and performance of the motor within the system
  • Evaluates the quality of incoming power fed to motor
  • Assesses motor performance indicators
  • Tracks the amount and condition of load placed on the motor
  • Instrument connection options: at a motor junction box, at the instrumentation cabinet, inside a motor control cabinet (MCC), from outside an MCC (requires a Baker EP1000 (dynamic motor link))
  • Designed for rugged site use in tight spaces typical of industrial environments
  • AC or battery operation
  • Visual confirmation of motor integrity
  • Facilitates survey of plant-wide motor efficiency
  • Microsoft Windows 7 operating system

Relay and protection testing

SVERKER900 Relay And Substation Test System

  • The testbox for substation 3-phase testing
  • Three currents and four voltages
  • Stand-alone functionality
  • Rugged and reliable for field use
  • Generation of 900 V and 105 A in single phase mode
  • Secondary and primary testing

The SVERKER 900 is specifically designed for basic, manual three-phase secondary testing of protection devices. In addition, various primary testing can be performed, since the current and voltage sources can be series- and/or parallel connected to allow for up to 105 A AC or 900 V AC output. All three current and four voltage sources can be individually adjusted with respect to amplitude, phase angle and frequency. The fourth voltage source allows for testing of numerical relays that needs a reference voltage simulating the busbar.