Megger MIT1525/2 15kV Insulation Resistance Tester
- RE>Act mode enhanced accuracy and safety
- PI predictor function (PIp)
- PDC test capability
- Measures up to 30 TΩ
- Safety rated up to CAT IV 1000 V to 3000 m
- Up to 6 mA noise rejection
- Unique dual-case design - additional user protection
- Operates from battery or AC mains supply
- Rapid charge Li-ion battery
- Advanced memory with time / date stamp
- Compatible with CertSuite Asset
The Megger MIT1525/2 15kV insulation testers are known worldwide for their rugged dependability, long service life and accurate, reliable measurements. The extensive range of models means that there will always be a perfect match for your requirements. One common feature across the whole range is the Megger, ‘no compromise’ approach to safety. The Megger level of safety will always go further than simply complying with the relevant safety standards
Prductivity and accuracy is a focus of the Megger MIT1525/2, offering rapid charge batteries and operation from an AC source when the battery is flat or low. An intuitive user interface ensures no lost time remembering how to use the tester. Simplicity of operation is achieved with two rotary switches and a large backlight display which enables multiple measurement information to be displayed simultaneously. A graphical quick start guide is provided inside the lid of each model to assist first time users and has QR code links to the online User Guide.
Measurement accuracy is of high importance for any insulation resistance measurement. It is particularly important to ensure that the accuracy is maintained up to higher IR values that are required by some applications. The Megger MIT15025/2 provides an excellent ±5% accuracy all the way up to 3 TΩ at 15,000V.
New Features
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.
RE>ACT Test Mode This ground breaking feature will revolutionise the reliability of your measurements. When insulation testing it is essential that any re-absorption current from the insulation under test is fully discharged before starting the test. Remaining absorption current, depending on polarity, can result in IR measurements that are falsely high or low, with the potential to incorrectly pass any failing insulation. The RE>Act mode not only measures this reabsorption current but also provides an indication to the user of the impact it will have on the instruments’ measurement range and accuracy.
Preconfigured diagnostic tests include Polarisation Index (PI), Dielectric Absorption Ratio (DAR) on all models. Dielectric Discharge (DD), Polarisation Depolarisation Current (PDC), Stepped Voltage (SV) and Ramp test.
The Megger MIT1525/2 includes memory storage with time/date stamping of results, logging of data and recall of results to screen. A fully isolated USB interface or on-board Bluetooth® interface is used for safe transfer of data to software. The following options are available:
- Mobile app, browser based software: CertSuite Asset and testing and reporting software. See below for more details.
- PC based asset management software: PowerDB Pro, Advanced or the free Lite packages
Included accessories
Mains lead (1008-017)
3 x 3 m, lead set with large 15kV Insulated clips (1008-023)
Screened USB cable with filters (25970-041)
Calibration certificate
MIT1525/2 15kV Insulation Resistance Tester
AC voltage (auto-ranging): 90-264 V rms, 47- 63 Hz 200 VA
Battery charge time: 2.5 hours deep discharge, 2 hours normal discharge
Battery voltage: 10.8 V, 5.2 Ah Li-ion batteries
Battery life: 4.5 hours (typical) continuous testing at 15kV with a 100 MΩ load
Auto power off: Instrument turns off after a few minutes if not used to conserve battery life
30 min quick charge: 1 hour operation at 5kV with a 100 MΩ load
Test voltage: 1000V, 2500V, 5000V, 10000V, 15000V User defined test voltage.
User defined test voltage: 1 kV to 5 kV in 25 V steps, 5kV to 15 kV in 25 V steps,
Test voltage accuracy: +4%, -0%, ±10V nominal test voltage at 1 GΩ load (0 °C to 30 °C)
Resistance range: 10 kΩ to 30 TΩ @ 15kV,
Re<Act: Reabsorption current measurement nominal accuracy. Operational up to 30V external applied.
Accuracy:
MIT1025/2 accuracy (23 °C) from 1 MΩ to15kV 10kV 5000V 2500V 1000V ±5% 3 TΩ 2 TΩ 1 TΩ 500 GΩ 200 GΩ ±20% 30 TΩ 20 TΩ 10 TΩ 5 TΩ 2 TΩ
Display analogue: 100 kΩ to 10 TΩ
Digital: 10 kΩ to 30 TΩ
Short circuit / charge current: 1 mA, 3 mA Default, 6 mA @ 15kV, (6 mA only from mains supply)
Insulation test alarm: 100 kΩ to 10 GΩ
Capacitor charge: <7.5 s/μF at 3 mA to 15kV
Capacitor discharge: <3500 ms/μF to discharge from 15kV to 50VCapacitance range With test voltage set above 500 V: 10 nF to 50μF
Capacitance measurement accuracy: ±10% ±5 nF
Current range: 0.01 nA to 6 mA
Current accuracy: ±5% ±0.2 nA at all voltages (20 °C)
Interference: 6 mA from 2100V to 15kV
Voltmeter range: 30V to 660V AC or DC, 45 Hz – 65 Hz
Voltmeter accuracy: ±3%, ±3V
Timer range: Up to 99 minutes 59 seconds, 15 second minimum setting
Test modes: IR, IR(t), DAR, PI, SV, DD, PDC, Ramp testInterface: USB type B (device) Bluetooth® Class 2.
Real time output: 1 Hz output readings (V, I, R)
