Megger MIT1525 15 kV High Voltage Insulation Resistance Tester MIT 1525
Condition: Refurbished / Calibrated
Warranty: 1 YEAR WARRANTY
Megger MIT1525 Insulation Resistance Tester
- Safety rated CAT IV 1000 V to 3000 m (15 kV)
- Rapid charge Li-ion battery
- PI, DAR, DD, SV and ramp test
- Operate from battery or AC source
- Advanced memory with time/date stamp
- 30 TΩ maximum resistance
Megger’s range of DC insulation testers, MIT515, MIT525, MIT1025 and MIT1525 are 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. The MIT515 offers IR, DAR and PI functions but has no memory functionality. MIT525, MIT1025 and MIT1525 have a full suite of test modes as well as on-board memory and the ability to stream data / download data to a PC / laptop. Instrument productivity is a focus of the MIT range, which offers rapid charge batteries and operation from an ac source if the batteries are dead. Rapid charge batteries enable >60 minutes testing after a 30 minute charge.
Safety rating is not compromised on the MIT range with all terminals safety rated to CAT IV 600 V to 3000 m (5 kV, 10 kV) or CAT IV 1000 V to 3000 m (15 kV). A range of 5 kV and 10 kV test leads are available plus dedicated 15 kV test leads, which are double insulated with clips designed for 15 kV creepage paths. The 15 kV leads are supplied in a carry bag. Suitably rated HV gloves and other personal protection equipment are required to be worn when testing.
The MIT range shares dual case design, which includes a tough outer case to protect the tester from knocks/drops and an inner fire-retardant case. The IP rating is IP65 case closed eliminating moisture and dust ingress. An intuitive user interface ensures no lost time remembering how to use the tester. Simplicity of operation is achieved with two rotary switches and the large backlight display which enables multiple results to be shown simultaneously. A graphical Quick Start Guide is provided inside the lid to assist first time users.
Five preset voltage ranges are provided in insulation test mode, plus a user settable lock voltage range. Preconfigured diagnostic tests include Polarization Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Step Voltage (SV) and Ramp Test.
Test leads are double insulated (t) with clamps rated at 3 kV (t) equivalent to 6 kV single insulation for the medium clip leadset and 5 kV (t), equivalent to 10 kV single insulation for the large clip. The 15 kV leadset is insulated to 15 kV. Advanced memory storage includes time/date stamping of results, logging of data and recall of results to screen. A fully isolated USB device interface (type B) is used for safe transfer of data to Megger’s PowerDB / Pro, Advanced and Lite asset management software (MIT525, MIT1025 and MIT1525 only).
Pi Predictor Function (PIp)
The Polarisation Index test can be time consuming, with a 10 minute test (30 mins on 3 phase) and with multiple items to test, any time saved is a bonus. PIp does just that. The PI predictor function uses the first part of the IR curve to predict the rest at 5 minutes into the test. The PIp can start as early as 3 minutes into the test and will stop when it is confident in the prediction.
Application
The Insulation Resistance (IR) test is a quantitative test, which indicates the effectiveness of a product’s electrical insulation. Applications include cables, transformers, motors / generators, circuit breakers and bushings. 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.
Storing Results in CertSuite Asset
Test results can be tagged with Asset data and transferred to CertSuite Asset, the latest cloud based Asset testing management software from Megger. CertSuite Asset transfers asset testing results from the MIT range of insulation resistance testers straight onto an Android mobile device or a Windows laptop via USB cable, removing the need for making notes, writing down results and filling in paperwork. Results can be stored and reviewed remotely by other team members whilst on site from different locations, or accessed by head office with the relevant permissions. CertSuite Asset is available as a monthly or yearly subscription package for Asset testing management, taking results directly from the MIT whilst testing. CertSuite is suitable for multiple concurrent users and is optimized for use with the MIT.
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 MIT 1525 15kV Insulation Resistance Tester
Preconfigured diagnostic tests include Polarization Index (PI), Dielectric Absorption Ratio (DAR), dielectric discharge (DD), Step Voltage (SV) and ramp test
This unit is particularly informative on polyester, asphalt and epoxy-mica insulations
Includes Integrated Hard Carrying Case & Accessories As Listed
MIT-1525 MIT1525
Megger MIT 1525 MIT-1525 Insulation Resistance Tester Models On Sale Warranty Calibration Backed by The Best Service and Lowest Prices in the Industry.
- Megger MIT1525 15kV High Voltage Insulation Resistance Tester (BC# -L/T*)
- (3) Megger Test Leads w/ Clamps
- USB PC Interface Cable
- Power Cord
- User Manual On CD-ROM