Megger Preventative and Predictive Maintenance Solutions

Plants prepare their facilities for planned repairs in order to minimize downtime. There are preventive maintenance programs and predictive maintenance programs. In both cases, production lines, facilities equipment and key machinery is inspected, tested and replaced in order to catch problems before they cause failures that have higher costs associated with them than the cost of being proactive. Predictive maintenance is ongoing; preventive maintenance usually involves a planned shutdown to accomplish. These programs involve a complex set of records and systems to maintain.

• "Hot spots" throughout electrical distribution
• Insulation breakdown of motors, transformers and wiring integrity of critical power wiring in generation systems (power plants and alternate energy sites)
• Connections in switchgear, electrical cabinets and throughout the electrical distribution runs
• Substation equipment - testing circuit breakers
• Ground systems checked for proper wire sizing, harmonics levels, and ground path integrity
• Critical motors tested and inspected so they can be replaced in planned fashion rather than in breakdown condition

Product Type: Insulation Resistance (IR) Tester

Application Area: Electric Motors, Generators and Compressors

Megger Model: MIT430/2, MIT2500, MIT525, MIT1025, and MIT1525

Product Types: Visual Thermometer, Insulation Resistance (IR) Tester

Application Area: Transformers

Megger Model: TC3231, MIT430/2, MIT2500, MIT525, MIT1025, and MIT1525

Product Type: Insulation Resistance (IR) Testers and DLRO (Digital Low Resistance) Testers

Application Area: Exterior Electrical Conductors, Service Connections, Disconnects, and Capacitor Banks

Megger Model: MIT430/2, MIT2500, MIT525, MIT1025, MIT1525, DLRO2, DLRO10, DLRO10X, and DLRO100XB

Product Type: DLRO (Digital Low Resistance) Testers

Application Area: Busbar Hardware

Megger Model: DLRO2, DLRO10, and DLRO10X

Product Type: Insulation Resistance (IR) Testers

Application Area: Electrical Service Distribution (i.e. Power and Control Wiring, Switchgear, Motor Control Centers, and Control Panels)

Megger Model: MIT430/2, MIT2500, DLRO2, DLRO10, and DLRO10X

Product Type: Ground Resistance Testers

Application Area: Facility's Ground System

Megger Model: DET2/3

Product Type: Clamp-on Ground Resistance Meters

Application Area: Proper Grounding of Equipment and Computers

Megger Model: DET14C and DET24C

The DLRO2 hand-held 2A low resistance ohmmeter provides fast, accurate, repeatable measurements - even in electrically noisy locations. The DLRO2 is equipped with a difference meter functionality that allows repetitive measurements to be easily compared with an initial reference measurement. The difference meter also translates the percentage difference to a needle/pointer movement, making the changes clear to see. In addition, the DLRO2 allows users to view three results on the screen at any time, making it ideal for 3-phase systems.

LOW RESISTANCE TESTING WITH LONG TEST LEADS: If applications require long test leads, then the DLRO2 can provide this without compromising test speed or safety. It has a dedicated long lead test mode to optimize the output, and this long test lead function can provide up to 1A of test current into 4 ohms resistance. The DLRO2, with its optional cable reel test leads, is therefore ideal for testing wind turbine and avionic lightning protection applications.

TYPICAL APPLICATIONS INCLUDE:

• Aviation
• Wind turbines
• Rail, tram and underground
• Marine
• Oil and gas pipelines
• Automotive and EV
• Cable manufacturers
• Component manufacturers
• Space exploration and engineering
• Data centers
• Panel/Switchgear manufacturers
• Robotics
• Electrical infrastructure

The TC3231 Thermal Camera combines the convenience of an infrared thermometer with the visual advantage of a thermal imager, providing a troubleshooting camera with infrared heat map. The TC3231 offers a professional infrared 32 x 31 pixels image thermometer with a 2.2 inch color TFT LCD display. Quick, accurate readings are possible for covering a wide range of surface temperature measurements.

VISUAL TEMPERATURE MEASUREMENTS: The TC3231 offers a wide measurement range from -4° to 572°F (-20° to 300°C). The visual thermometer features a range of selectable thermal image color palette display options along with high / low user preset temperature alarms. For convenience, background temperature is also user selectable.

ADDITIONAL FEATURES INCLUDE:

• Fully adjustable emissivity for multiple applications
• Easy center spot temperature measurement
• Simultaneous hot and cold spot tracking
• Image blending with selectable distance from 0.5m to 3m
• Image capture and storage via micro SD memory
• USB interface for charging and downloading images to PC

The MIT400/2 insulation and continuity testers are designed for electrical and industrial testing. In addition, they have an exceptionally wide range of applications in electrical installations, cable testing, motor testing, automotive, ESD, panel building, avionics, maintenance etc.

INSULATION RESISTANCE TESTING: The stabilized insulation test voltage is now accurate to +2% -0%. This compares to the industry standard +20%, providing a more accurate test voltage without the risk of over-voltage damage to circuits or components. The output voltage is maintained between 0 and 2% throughout the test range.

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

The DLRO 10X Digital Microhmmeter is a fully automatic instrument, selecting the most suitable test current, up to 10 A dc 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 manual selection of the test current. DLRO10X also adds real-time download of results and on-board storage for later download to a PC.

LOW RESISTANCE TESTING: 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:

• 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 600V 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 MIT1525 is targeted at original equipment manufacturers and industrial companies. The top of the range MIT1525 performs insulation resistance tests up to 15 kV with a 30 TΩ maximum resistance and an accuracy of ±5 % from 1 MΩ up to 3 TΩ. It has a full suite of test modes as well as on-board memory and the ability to stream data / download data to a PC / laptop. The MIT1525 also offers rapid charge batteries and operation from an AC source if the batteries are flat.

INSULATION RESISTANCE TESTING: The Insulation Resistance (IR) test is a quantitative test, which indicates the effectiveness of a product’s electrical insulation. Common insulation tests are the "spot test", a 1-minute IR test and a 10-minute Polarization Index (PI) test, where PI is the ratio R10min / R1min and is temperature independent.

TYPICAL APPLICATIONS INCLUDE:

• Cables
• Transformers
• Motors and generators
• Circuit breakers and bushings

DET24C offers a true RMS AC current measurement facility up to 35 Amps. The elliptical shaped head design offers improved access to cables and earth straps in space constrained locations. The clamp head accommodates up to 37 mm diameter cable and 50 mm earth tapes making them suitable for use in power stations, substations, towers and many more facilities.

EARTH/GROUND CLAMP-ON RESISTANCE TESTING: These instruments induce a test current into earth systems and measure ground resistance in multi ground installations without needing to disconnect the ground. The earth resistance clamp meters are particularly suitable for measuring earth resistance in various installations.

TYPICAL APPLICATIONS INCLUDE:

• Buildings
• Pylons and RF transmitter sites without system disconnection
• Virtually any installation where current loop can be generated
• Inspection and verification of lightning protection systems

MIT525

Max. Output Voltage: 5 kV
Max. Resistance: 10 TΩ
Accuracy from 1 MΩ to: ±5% ≤ 1 TΩ; ±20% to 10 TΩ
Short Circuit Output Current: 3 mA
Max. Noise Rejection: 3 mA
Safety Rating (to Max. Altitude): CAT IV 600 V
Max. Altitude: 3000 m
Battery Life: 6 hrs single charge

MIT1025

Max. Output Voltage: 10 kV
Max. Resistance: 20 TΩ
Accuracy from 1 MΩ to: ±5% ≤ 2 TΩ; ±20% to 20 TΩ
Short Circuit Output Current: 3 mA
Max. Noise Rejection: 3 mA
Safety Rating (to Max. Altitude): CAT IV 600 V
Max. Altitude: 3000 m
Battery Life: 4.5 hrs single charge

MIT1525

Max. Output Voltage: 15 kV
Max. Resistance: 30 TΩ
Accuracy from 1 MΩ to: ±5% ≤ 3 TΩ; ±20% to 35 TΩ
Short Circuit Output Current: 3 mA
Max. Noise Rejection: 6 mA
Safety Rating (to Max. Altitude): CAT IV 1000 V
Max. Altitude: 3000 m
Battery Life: 4.5 hrs single charge

DET14C

Ground Resistance Certainty: 0.05 Ω - 1500 Ω
Ground Resistance Resolution: 0.01 Ω - 10 Ω
Ground Resistance Intrinsic Range: ±1.5% ±0.05 Ω - ±35%
Current Range (RMS): 0.5 mA - 35.0 A
Current Resolution: 0.01 mA - 0.1 A
Current Intrinsic Certainty: ±2% ±0.05 mA - ±2% ±0.1 A
Maximum Jaw Opening: 39 mm
Data Logging: 256 records
Data Download: N/A
Battery Life: 24 hours continuous testing

DET24C

Ground Resistance Certainty: 0.05 Ω - 1500 Ω
Ground Resistance Resolution: 0.01 Ω - 10 Ω
Ground Resistance Intrinsic Range: ±1.5% ±0.05 Ω - ±35%
Current Range (RMS): 0.5 mA - 35.0 A
Current Resolution: 0.01 mA - 0.1 A
Current Intrinsic Certainty: ±2% ±0.05 mA - ±2% ±0.1 A
Maximum Jaw Opening: 39 mm
Data Logging: 2000 records
Data Download: Bluetooth interface
Battery Life: 24 hours continuous testing

DLRO2

Full Scale Resistance Range: 15000 μΩ - 2000 Ω
Resistance Resolution: 1 μΩ - 0.1 Ω
Test Current: Resistive/Inductive: 2 A - 1 mA/1A - 1 mA
Measurement Mode: Normal Resistance, Inductive, Fast/Long Test Lead
Measurement Control: Fully Automatic, Manual
Display: Color LCD with backlight
Data Transfer: N/A
Data Storage: N/A
Battery Life: > 1000 x 2 A tests (typical)

DRLO10

Full Scale Resistance Range: 1.9999 mΩ - 1999.9 Ω
Resistance Resolution: 0.1 μΩ - 100 mΩ
Test Current: Resistive/Inductive: 10 A - 100 μA/1A - 100 μA
Measurement Mode: Manual, Auto, Continuous, Inductive
Measurement Control: Fully Automatic
Display: LED
Data Transfer: N/A
Data Storage: N/A
Battery Life: 1000 x 10 A tests (typical)

DLRO10X

Full Scale Resistance Range: 1.9999 mΩ - 1999.9 Ω
Resistance Resolution: >0.1 μΩ - 100 mΩ
Test Current: Resistive/Inductive: 10 A - 100 μA/1A - 100 μA
Measurement Mode: Manual, Auto, Continuous, Inductive, Unidirectional
Measurement Control: Fully Automatic, Manual
Display: LCD with backlight
Data Transfer: RS232
Data Storage: 700 records
Battery Life: 1000 x 10 A tests (typical)

DLRO100

Measurement Range: 0.1 μΩ - 1.999 Ω
Resolution: 0.1 μΩ
Noise Rejection: Differential 100 mV @ 50-60 Hz on Test Leads
DC Output: Smooth DC
IP Rating: IP54 Lid open/IP65 Lid closed
Internal Memory Storage with USB Download: N/A
Battery Life: 200 single 100 A tests

DLRO100X

Measurement Range: 0.1 μΩ - 1.999 Ω
Resolution: 0.1 μΩ
Noise Rejection: Differential 100 mV @ 50-60 Hz on Test Leads
DC Output: Smooth DC
IP Rating: IP54 Lid open/IP65 Lid closed
Internal Memory Storage with USB Download: 220 records
Battery Life: 200 single 100 A tests

MIT430/2

Insulation Test Range: 10 V - 100 V
Resolution: 0.1 kΩ
Frequency: 15 Hz - 400 Hz
Continuity: 0.01 Ω to 999 kΩ (0 to 1000 kΩ on analog scale)
Capacitance: 100 pF to 10 μF
Safety Rating: CAT IV 600 V
Battery Life: 3000 insulation tests

MIT2500

Insulation Test Range: 50 V - 2500 V
Resolution: 0.1 kΩ
Frequency: 15 Hz - 400 Hz
Continuity: 0.01 Ω to 1 MΩ (0 to 1000 kΩ on analogue scale)
Capacitance: 0.1 nF to 10 μF
Safety Rating: CAT IV 600 V
Battery Life: 3000 insulation tests

TC3231

Temperature Measurement Range: -4° to 572°F (-20° to 300°C)
Temperature Measurement Accuracy: +/-2% +/-2 °C as tested (at 25 °C)
Image Capture Frequency: 9 Hz
Detector Type: Un-cooled pyroelectric ceramic
Thermal Sensitivity (NETD): ≤ 150 mK
Infrared Spectral Band: 6.5 μm to 14 μm
Visual Camera: 48608 pixels
Field of View: 38° x 38°
Display: 2.2 in. diagonal 320 x 240 TFT LCD
Palettes: Hot Metal, Ironbow, Rainbow, Rainbow High Contrast, Grayscale (white hot) Grayscale (black hot)

Guide to Diagnostic Insulation Testing Above 1 kV (pdf)

Guide to Clamp-on Ground Testing (pdf)

Guide to Low Voltage Motor Testing (pdf)

Continuity and Low Resistance Testing (pdf)

Getting Down to Earth: A Guide to Earth Resistance Testing (pdf)

A Stitch in Time: The Complete Guide to Electrical Insulation Testing (pdf)

5 kV, 10 kV and 15 kV Insulation Tester Lead Sets (pdf)

A Guide to Low Resistance Testing (pdf)

Noise Control in Ground Testing (pdf)

PowerDB: Complete Data Acquisition and Management Software (pdf)