The UT513C is the widest-range model in the UT513 series: a 5 kV insulation resistance tester rated CAT IV 600 V that reads insulation resistance up to 5 TΩ, for high-resistance modern insulation on transformers, large machines, and long cable systems.
It applies test voltages from 250 V to 5000 V and adds capacitance measurement from 0.01 µF to 15 µF. The full diagnostic set covers Polarization Index, Dielectric Absorption Ratio, a 0 s to 99 min 59 s timer, and a 10%-of-range stepped-voltage profile, with a comparison function, high-voltage alarm, automatic discharge, storage for 999 result sets, and both USB and a Bluetooth app for transfer.
It suits utility and industrial testing of high-value insulation where the widest resistance range and full diagnostics are needed.
| Test Voltages | 250 V / 500 V / 1000 V / 2500 V / 5000 V |
| Insulation Resistance | up to 5 TΩ |
| IR Accuracy | ±(5% + 5) |
| DC Voltage | 30 to 1000 V, ±(3% + 5) |
| AC Voltage | 30 to 750 V, ±(3% + 5) |
| Test Current | 0.01 nA to 5.0 mA |
| Short-Circuit Current | ≈5.0 mA |
| Capacitance | 0.01 µF to 15 µF |
| PI / DAR | Yes |
| Timer Measurement | Yes (0s to 99m 59s) |
| Stepping Voltage | 10% of range |
| Comparison Function | Yes |
| Auto Discharge | Yes |
| High Voltage Alarm | Yes |
| Data Storage | 999 sets |
| Bluetooth App | Yes |
| Data Communication | USB |
| Safety Rating | CAT IV 600 V |
| Power | 14.8 V 5200 mAh Li-ion (rechargeable) |
| Dimensions (L × W × D) | 238 × 166 × 90.5 mm |
| Weight | ≈1800 g |
Manufacturer's Rep & National Distributor — Est. 2005
