UT513C 5kV Advanced Insulation Resistance Tester
UT513C 5kV Advanced Insulation Resistance Tester
Overview
The UT513C is the top of the UT513 line: CAT IV 600 V, test voltages from 250 V to 5 kV, and insulation resistance up to 5 TΩ — the widest range in the family, for high-resistance modern insulation on transformers, large machines, and long cable systems. It adds capacitance measurement from 0.01 µF to 15 µF and a Bluetooth app alongside USB.
It runs the full diagnostic set — Polarization Index, Dielectric Absorption Ratio, a 0 s–99 m 59 s timer, and 10%-of-range stepped-voltage profiling — with live leakage display, automatic discharge, and a high-voltage alarm. Results store 999 sets and move to phone or PC. It's backed by UNI-T's nearly 40 years of test-meter manufacturing.
Key Features
- Five selectable test voltages: 250 V, 500 V, 1000 V, 2500 V, 5000 V
- Insulation resistance up to 5 TΩ, accuracy ±(5%+5)
- Capacitance measurement 0.01 µF to 15 µF
- PI and DAR timed diagnostics with 0 s–99 m 59 s timer
- 10%-of-range stepped-voltage profiling
- Live leakage-current display and automatic discharge
- High-voltage output alarm
- 999-set storage, USB and Bluetooth app
- CAT IV 600 V; 14.8 V 5200 mAh rechargeable Li-ion
UT513C Details
5 TΩ Measurement Range
The UT513C reads insulation resistance up to 5 TΩ — the widest in the UT513 family — so high-resistance modern insulation on large transformers and long cable runs stays on-scale where lower-range testers top out.
PI, DAR & Stepped-Voltage Profiling
The full timed-diagnostic set runs here: PI and DAR separate sound insulation from moisture and contamination, while 10% stepped-voltage profiling stresses the dielectric in stages to expose marginal insulation a fixed reading would pass.
Capacitance Measurement
Built-in capacitance measurement from 0.01 µF to 15 µF adds context to insulation work — useful for characterizing cable and winding capacitance alongside the resistance reading.
Bluetooth App & USB
Beyond on-board storage of 999 result sets, the UT513C pairs to a Bluetooth app for live readout and report capture in the field, with USB transfer to a PC for records.
Safety & Field Build
Automatic discharge and a high-voltage alarm handle the hazards of 5 kV testing; the CAT IV 600 V rating and a 14.8 V 5200 mAh rechargeable pack suit full days on industrial and utility equipment.
Compare the UT513 Series
| UT512E | UT513A | UT513B | UT513C | |
|---|---|---|---|---|
| Max test voltage | 2500 V | 5 kV | 5 kV | 5 kV |
| Max insulation resistance | 2.5 TΩ | 1 TΩ | 2 TΩ | 5 TΩ |
| Voltage stepping (10% of range) | Yes | — | Yes | Yes |
| PI / DAR diagnostics | PI | PI | PI / DAR | PI / DAR |
| Capacitance measurement | 2 µF | — | — | 0.01–15 µF |
| Data storage | 999 sets | 18 sets | 999 sets | 999 sets |
| Bluetooth app | — | — | — | Yes |
| Safety rating | CAT IV 600 V | CAT III 600 V | CAT IV 600 V | CAT IV 600 V |
Applications
High-resistance insulation testing on large transformers and machines; medium-voltage cable and feeder systems; switchgear maintenance and acceptance testing; and any program where capacitance and app-based documentation add value to the insulation record.
Frequently Asked Questions
How high does the UT513C measure?
Up to 5 TΩ — the widest insulation resistance range in the UT513 family.
What does the UT513C add over the UT513B?
A 5 TΩ range (vs 2 TΩ), capacitance measurement from 0.01 µF to 15 µF, and a Bluetooth app alongside USB.
Does it run PI and DAR?
Yes — PI, DAR, a measurement timer, and 10% stepped-voltage profiling are all included.
Specifications
| 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 |
Documentation
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
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