- Insulation Test Voltages from 100V to 5000V, with increments of 50V
- Microprocessor controlled with 4-bit large backlit display
- Test insulation resistance up to 10TΩ
- Short circuit current up to 6mA
- DAR – Dielectric Absorption Ratio indication
- PI – Polarization Index indication
- Measurement of up to 750V AC and up to 1000V DC
- Auto ranging on all insulation ranges
- Adjustable test time from 1 minute to 30 minutes
- Auto hold to freeze measurement readings
- 500 measurement results can be saved in memory and recalled onto the display
- Alarm when the measured value larger or smaller than the alarm setting value
- Auto Power Off
Description
The MT574 5000V DC CAT III 300V Diagnostic Insulation Tester, with increments of 50V on each range will automatically discharge the circuit after the test has been completed. Using the range button switches, 6 preset ranges of 100V, 250V, 500V, 1000V, 2500V and 5000V can be selected, with an insulation resistance up to 10TΩ. The microprocessor controlled MT574 has the capability of being a diagnostic tool and is intended for testing insulation on Rotating Machines, Transformers, Cables, High Voltage Generators, Electric Circuits and Surge Arrestors. The short circuit current output is up to 6mA. It has the function of measuring Absorption Ratio and Polarization Index of AC voltage and DC voltage and 500 test measurement results can be saved in the memory of the meter and recalled onto the LCD display. The large backlit LCD display indicates the readings of insulation, measuring time, output voltage and output current. The MT574 can measure up to 750V AC and up to 1000V DC and Capacitance up to 50μF, and is housed in a robust case ideal for extended field use, powered by 12.6V rechargeable Lithium Batteries. Stored data can be transferred to a PC using an optical USB and software supplied.
Specifications
Function |
Range |
Resolution |
Accuracy |
Insulation 100V |
0.05 MΩ~500GΩ |
0.001MΩ |
±3%rdg ± 5dgt |
Insulation 250V |
0.1MΩ~1000GΩ |
0.001MΩ |
±3%rdg ± 5dgt |
Insulation 500V |
0.2MΩ~2000GΩ |
0.001MΩ |
±3%rdg ± 5dgt |
Insulation 1000V |
0.5MΩ~10TΩ |
0.01MΩ |
±3%rdg ± 5dgt |
Insulation 5KV |
2MΩ~10TΩ |
0.01MΩ |
±3%rdg ± 5dgt |
DC voltage |
0.0V~1000V |
0.1V |
±1.5%rdg±3dgt |
AC voltage |
0.0V~750V |
0.1V |
±1.5%rdg±3dgt |
DC current |
1mA – 1000pA |
1pA |
±30%rdg ± 5dgt |
Capacitance |
10uf – 100nf |
0.1nf |
±10%fs.±5dgt |
Basic condition |
23°C ± 5°C, below 75%RH |
Rated voltage |
100V, 250V, 500V, 1000V, 5kV |
Test Voltage(V) |
Rated voltage x (1±10%) |
Output short-circuit Current |
≥6mA@15KV |
Absorption, Ratio and Polarization Index Measurement |
Yes |
Power Supply |
12.6V rechargeable battery |
Backlight |
Yes |
Display Mode |
4-bit large LCD display, grey screen backlight |
LCD display size |
108mm x 65mm |
Instrument size |
240mm x 188mm x 85mm |
USB interface |
Yes |
Communication Line |
USB communication line 1PC |
Test Lead |
High voltage probe red 3m, high voltage test lead black 1.5m, green 1.5m |
Data Storage |
500 groups |
Data Review |
Yes |
Overflow Display |
Yes |
Alarm Function |
Alarm when the measured value larger or smaller than the alarm setting value |
Instrument weight |
2750g (including battery) |
Low Battery Display |
Yes |
Automatic shut-down |
Automatic shutdown after 15 minutes |
Insulation Resistance |
≥50MΩ (between Measuring line and housing) |
Pressure Resistance |
AC3kV / 50Hz 1min |
Working Temperature and Humidity |
-10°C to 50°C<85%RH |
Storage Temperature and Humidity |
-15°C to 55°C<90%RH |
Safety Regulations |
IEC61010-1, IEC1010-2-31, IEC61557-1,5,
IEC60529 (IP54) pollution grade 2, CAT III 300V
|
Safety Ratings
Accessories
- High Pressure Rod (red)
- High voltage test land (black and Green)
- Monitoring Software CD
- USB Communication Line
- Charger
- Instruction Manual