Megger MIT1020/2 10 kV High Insulation Resistance Tester
Condition: Refurbished / Calibrated
Warranty: 1 Year Warranty
Megger MIT1020/2 Insulation Resistance Tester
The new MIT510/2 and 520/2, 5-kV and MIT1020/2, 10-kV insulation resistance testers are all designed specifically to assist the user with the testing and maintenance of high voltage equipment. The instruments are designed in a landscape style which is more familiar and user friendly.
The MIT510/2 and MIT520/2 measures to 15 TΩ, replacing the ambiguous “infinity” reading with an actual number that can be used for predictive/preventive trending on the highest quality insulation. Both units are supplied with test leads with medium insulated clips.
The MIT510/2 has the facility to set the test voltage in steps from 250 V to 5000 V and the MIT520/2 has the ability to set the test voltage from 50 V to the maximum output voltage
The MIT1020/2 offers a measurement range to 35 TΩ in order to provide trending values for the best of insulating materials used on the higher capitalized equipment. The model features an expanded test voltage range from 50 V to 10 kV, in 10 V increments to 1 kV and 25 V increments above. The MIT1020/2 is supplied with two sets of test leads, one with medium insulated clips and the other with large insulated clips.
All three instruments have a large, easy-to-read backlit LCD making them 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 is displayed constantly, removing the need for separate timers. The MIT520/2 and MIT1020/2 allow up to 3 timed measurement positions to be set, which simplifies DAR testing.
A built-in integral timer starts automatically at the beginning of a test, and displays in minutes and seconds. At the end of any test, capacitive loads are automatically discharged and the decaying voltage displayed. The timer enables the performance of an automatic IR test with the MIT510/2, while the MIT520/2 and MIT1020/2 add the capability of preprogrammed DAR, PI, SV and DD. The MIT520/2 and MIT1020/2 include a selectable breakdown or burn mode and an alarm mode, which allows the operator to preset a specific resistance level. The unit will beep until the limit is exceeded. The controls of the instruments are clear and unambiguous, and a “quick start” guide is included in the lid, eliminating the need to carry manuals to site locations.
Redundant safety features make the instruments fully amenable to safe operation in the more demanding high voltage environment. The CAT IV 600 V safety rating means that the instruments are protected for use on outside applications and are protected against impulses to 8 kV. Instrument design is in conformance with EN61010 for arc-flash protection. If the instrument is accidentally connected to a live test item, external voltage will be automatically displayed and testing inhibited above 50 V (80 V on MIT1020/2). At the conclusion of a test, dangerous static voltage on the test item is automatically discharged and monitored on the display. All three models are fitted with a guard terminal to enhance accuracy. The guard test lead is included as standard with each instrument.
Applications:
All three models are designed for testing the insulation of high-voltage electric equipment. Their wide voltage range also allows applications for low-voltage equipment. Generators, motors, transformers, cables and switchgear all require effective maintenance. The test techniques on the instruments provide valuable diagnostic information.
All three instruments test the insulation resistance of:
- High-voltage power cables and high-voltage buses
- Large motor/generator windings
- Line and substation transformers
The MIT520/2 and MIT1020/2 also perform spot tests, step-voltage tests, dielectric discharge tests and dielectric absorption tests for the following applications:
- Acceptance testing at installation to check conformance to specifications.
- Routine preventive/predictive maintenance testing after installation.
- Quality assurance testing as part of the manufacturing process.
- Diagnostic testing to isolate faulty components for repair.
With its higher voltage testing capability, the MIT1020/2 is the perfect every day work tool for manufacturers, users and maintainers of rotating machinery. Designed in accordance with the requirements of IEEE43:2000 the MIT1020/2 is ideal for measuring the insulation resistance of armature and field windings in rotating machines rated 1hp (750 W) or greater. The standard applies to synchronous, induction and dc machines as well as synchronous condensers.
Features and benefits:
- CAT IV 600 V safety rating allows for safe use in the widest range of applications
- Improved operating flexility provides the user with the choice of using these instruments via line or battery operation. Line operation also affords enhanced charging capabilities for high-capacitance test samples.
- High measurement range enables installation testing and long-term trending of higher value apparatus.
- 3 mA short circuit current allows for faster charging and testing of large capacitive and inductive loads.
- Results storage and downloading enables state-of-the-art record keeping free of transposition errors.
- Five industry-standard tests can be performed automatically, freeing operator from time-consuming manual operations.
- Backlit display enables ease of testing in poorly lit areas.
- Rugged, lightweight polypropylene case and IP65 rating make all of the instruments adaptable for all field conditions.
- A variety of measurements including applied test voltage, leakage current and capacitance, affords enhanced capabilities to diagnose insulation condition and problems.
- Redundant safety features includes automatic discharge of test item, test inhibition in presence of external voltage, and design to EN61010.
- The MIT1020/2 incorporates the ability to apply test voltage up to 10 kV, making it fully conformable to the requirements of IEEE 43:2000
- Industry best guard terminal performance to insure highest accuracy of measured values.
- For greater ease of use and downloading, an RS232 or USB interface is available (MIT520/2 and MIT1020/2 only).
- Alarm limit mode (MIT520/2 and MIT1020/2 only) allows for faster testing and less ambiguous result interpretation
Specifications:
| Test Voltage | 50 V to 1 kV in 10 V steps, 1 kV to 10 kV in 25 V steps |
| Insulation Resistance Range | |
| Digital display: | 10 kΩ to 35 TΩ |
| Analog display: | 100 kΩ to 1 TΩ |
| Accuracy (23º C) | ±20% to 20 TΩ |
| Voltage Output Accuracy (0ºC to 30ºC) | 0 to +4% ±1 V of nominal test voltage at 100 MΩ load ±25 V for test voltages less than 500 V |
| Short Circuit/Charge Current | 3 mA |
| Current Measurement | Range: ±0.01 nA to ±5 mA Accuracy (23ºC): ±5% ±0.2 nA at all voltages |
| Capacitance Measurement | Range: 10 nF to 50 µF (for voltages > 500 V) Accuracy (23ºC): ±5% ±5 nF |
| Capacitor | Charge Time: 5 seconds per µF at 3 mA Discharge Time: 5 seconds per µF to discharge from: 10,000 to 50 V |
| Display | Analog/digital 3 digits |
| Timer Range | Count up to 99 minutes and 59 seconds from start of test |
| Memory Capacity | 32 kB |
| Industry-Standard Tests | Auto IR, PI, DAR, SV, and DD |
| Interference Rejection | 2 mA rms at 200 V and above |
| Guard Terminal | 2% error guarding 500 kΩ leakage with 100 mΩ load |
| Voltage Input Range | 95 to 240 V, ±10% rms 50/60 Hz and dc |
| Battery Life | 6 hours continuous testing at 5 kV 4 hours continuous testing at 10 kV |
| Safety | Meets the requirements of EN61010-1: 2001 CAT IV 600 V |
| EMC | Meets the requirements of EN61326-1:1998 for use in heavy industrial areas |
| Ingress Protection | IP65 (lid closed) |
| Temperature Range | Operating: -4ºF to 122ºF (-20ºC to +50ºC) Storage: -13ºF to +149ºF (-25ºC to +65ºC) |
| Humidity Range | 90% RH @ 104ºF (40ºC) |
| Dimensions | 12 in. x 7.6 in. x 14.2 in. (305 mm x 194 mm x 360 mm) |
| Weight | 15 lb. (6.75 kg) |
Megger MIT1020/2 10kV High Insulation Resistance Tester
Ideal for measuring the insulation resistance of armature and field windings in rotating machines rated 1hp (750 W) or greater.
Includes Accessories As Listed
BC# -L/T*
Megger MIT1020-2 MIT-1020-2 High Insulation Resistance Tester Models On Sale Warranty Calibration Backed by The Best Service and Lowest Prices in the Industry.
- Megger MIT1020/2 10kV High Insulation Resistance Tester (BC# -L/T*)
- Test Lead Set Medium
- Test Lead Set Large
- Power Lead
- RS232 PC Interface Cable
- USB PC Interface Cable
- Line Cord
- User Guide