Megger MIT515 5 kV DC Insulation Resistance Tester
Condition: Refurbished / Calibrated
Warranty: 1 Year Warranty
Shipping: USA & Worldwide
- Megger MIT515 5kV DC Insulation Resistance Tester (BC# 44729-L/T*)
- Test Lead Set
Megger MIT515 5 kV Insulation Resistance Tester
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.
- MIT515: 5 kV IRT with PI and DAR but no memory
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.
APPLICATIONS
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 Polarisation Index (PI) test, where PI is the ratio R10min / R1minand is temperature independent.
FEATURES AND BENEFITS
- Insulation resistance up to 30 TΩ @ 15 kV, 20 TΩ @ 10kV, 10 TΩ @ 5 kV
- IR, Timed IR, DAR, PI, DD, SV and Ramp diagnostic tests
- High current – 3 mA short circuit current
- High noise immunity – 3 mA (5 kV and 10 kV) 6 mA (15 kV) of noise rejection
- Li-ion battery – up to 6 hrs continuous testing @ 5 kV with a 100M load, battery meets IEC 2133
- Safety rating: CAT IV 600 V to 3000 m (5 kV, 10 kV) CAT IV 1000 V to 3000 m (15 kV)
- Large LCD with backlight
- Dedicated voltmeter function (30 V to 660 V)
- MIT515, MIT525 and MIT1025 safety rated at CAT IV 600 V (maintained to 3000 m altitude)
Specifications:
| a.c. voltage (auto-ranging) | 90-264 V rms, 47- 63 Hz 100 VA |
| Battery Charge Time | 2.5 hours deep discharge, 2 hours normal discharge |
| Battery life | 1.1 V, 5.2Ah Li-ion batteries, meet IEC 62133:2003, MIT1525 has 2
battery packs 6 hours (typical) continuous testing at 5 kV with a 100 MΩ load |
| Test Voltage | 250 V, 500 V, 1000 V, 2500 V, 5000 V, VL |
| Lock test voltage | 100 VL to 1 kV in 10 V steps, 1 kV to 5 kV in 25 V steps, 5 kV to 15 kV in 25 V steps |
| Test voltage accuracy | +4%, -0%, ±10 V nominal test voltage at 1 GΩ load (0°C to 30°C) |
| Resistance range | 10 kΩ to 15 TΩ @ 5 kV, 10 kΩ to 20 TΩ @ 10 kV, 10 kΩ to 30 TΩ @ 15 kV |
| Accuracy | 5000 V 2500 V 1000 V 500 V 250 V ±5% from 1MΩ to 1 TΩ 500 GΩ 200 GΩ 100 GΩ 50 GΩ ±20% from 1MΩ to 10 TΩ 5 TΩ 2 TΩ 1 TΩ 500 GΩ |
| Guard terminal performance | Guards out parallel leakage resistance down to 250 kΩ with a maximum additional resistance error of 1% with a 100 MΩ load |
| Display analog: | 100 kΩ to 10 TΩ |
| Digital: | 10 kΩ to max. a above |
| Short circuit / charge current | 3 mA @ 5 kV, 10 kV, 15 kV |
| Insulation test alarm: | 100 kΩ to 10 GΩ |
| Capacitor charge | <3 s/μF at 3 mA to 5 kV |
| Capacitor discharge | <120 ms/μF to discharge from 5000 V to 50 V |
| Capacitance range With test voltage set above 500 V |
0 nF to 25 μF |
| Capacitance measurement accuracy | ±10% ±5 nF |
| Current range | 0.01 nA to 6 mA |
| Current accuracy | ±5% ±0.2 nA at all voltages (23 °C) |
| Interference | 3 mA from 450 V to 5 kV |
| Voltmeter range | 30 V to 660 V a.c. or d.c., 45Hz – 65Hz |
| Voltmeter accuracy | ±3%, ±3V |
| Timer range | Up to 99 minutes 59 seconds, 15 second minimum setting |
| Memory capacity | 5.5 hours logging @ 5 sec intervals |
| Test modes | IR, IR(t), DAR, PI |
| Interface | USB type B (device) |
| Real time output | 1 Hz output readings (V, I, R) |
| ENVIRONMENTAL | |
| Maximum altitude | 3000 m |
| Operating temperature range | -4 °F to +122 °F (-20 °C to +50 °C) |
| Storage temperature range | -13 °F to +149 °F (-25 °C to +65 °C) |
| Humidity | 90% RH non-condensing at 104 °F (40 °C) |
| IP rating | IP65 (lid closed), IP40 (lid open) |
| Safety | CAT IV 600 V to 3000 m altitude |