UNI-T UTL8512A+ Programmable DC Electronic Load
The UNI-T UTL8512A+ Programmable DC Electronic Load is a high-performance programmable DC electronic load designed for precise testing of power supplies, batteries, and electronic components. It supports multiple operating modes (CC, CV, CR, CP) and dynamic testing capabilities, enabling realistic simulation of load conditions. With high resolution and fast dynamic response, it is suitable for R&D, production testing, and quality assurance environments. It also features remote control via RS-232 and compact rack-mount form factor for lab integration.
Features
- 150 V / 30 A / up to 400 W load capacity.
- Synchronous sampling of 500 kHz, 10Hz, 10uA, 0.1 mV stable resolution output.
- Multiple operation modes: CC, CV, CR, CP.
- Adjustable current slew rate (0.0006 A/µs to 3 A/µs).
- Dynamic mode (DYNA) of 50 kHz pull load, the waveform of current and voltage peak can be observed directly (UTL8500X+ series), Vpp, Ipp measurement.
- Realistic simulation of LED function.
- Supports OCP test and maximum power test.
- Supports time measurement (TIME).
- Supports OVP test.
- Supports intelligent and programmable automated list test (LIST).
- Protections of over-voltage/under-voltage/over-current/over-power/overheat/anti-reverse connection.
- 4.3 inch LCD, all the test results at a glance.
- Screenshot function with list storage & recall.
- RS-232 interface for remote control and automation.
- Remote sense terminals for accurate voltage measurement.
- Compact ½ 2U rack-mount design.
Specifications
| Parameter | Value |
|---|---|
| Voltage (Input Voltage) | 0–15V / 0–150V |
| Voltage (CV Range) | 0.1–150V |
| Voltage (CV Resolution) | 1mV |
| Voltage (CV Accuracy) | ±(0.03% + 0.05%FS) |
| Voltage (Readback Range) | 0–15V / 0–150V |
| Voltage (Readback Resolution) | 0.01mV / 0.1mV |
| Voltage (Readback Accuracy) | ±(0.02% + 0.3%FS) |
| Current (Input Current) | 0–3A / 0–30A |
| Current (CC Range) | 0–3A / 0–30A |
| Current (CC Resolution) | 0.01mA / 0.1mA |
| Current (CC Accuracy) | ±(0.03% + 0.05%FS) |
| Current (Readback Range) | 0–3A / 0–30A |
| Current (Readback Resolution) | 0.01mA / 0.1mA |
| Current (Readback Accuracy) | ±(0.03% + 0.05%FS) |
| Modes (CR Range) | 0.05Ω–10kΩ |
| Modes (CR Resolution) | 16-bit |
| Modes (CR Accuracy) | (0.1 + 0.01R)% |
| Modes (CP Range) | 400W |
| Modes (CP Resolution) | 10mW |
| Modes (CP Accuracy) | ±(0.1% + 0.1%FS) |
| Modes (Dynamic T1 & T2) | 10µs – 50s |
| Modes (Dynamic Accuracy) | 1µs / 1ms ±100ppm |
| Modes (Dynamic Slope) | 0.0006 A/µs – 3 A/µs |
| Protections (Overpower) | ≥404W (delay), ≥440W (immediate) |
| Protections (Overcurrent) | ≥30.3A (delay), ≥33A (immediate) |
| Protections (Overvoltage) | ≥152V (delay), ≥165V (immediate) |
| Protections (Over-temperature) | ≥85°C |
| Protections (Short Circuit CC) | ≤3A / ≤30A |
| Protections (Short Circuit CV) | 0V |
| Protections (Short Circuit CR) | 50mΩ |
| Power Requirement | 110V / 220V, 50/60Hz |
| Protocol | SCPI |
| Interface | RS232 |
| Dimensions (W×H×D) | 215mm × 88mm × 374mm |
| Weight | 4.49 kg |
| Display | LCD |
| Input Power | 400W |
| Minimum Operating Voltage | 1.4V ±0.1V @ 30A |
| Readback Power (Range) | 400W |
| Readback Power (Resolution) | 10mW |
| Readback Power (Accuracy) | ±(0.1% + 0.1%FS) |
| Input Terminal Resistance | 300kΩ |
| Fuse | 0.5A (110V) / 0.25A (220V) |
| Ripple Display | Supported |
| Waveform Record | Supported |
| Test Modes | CC, CV, CR, CP, Dynamic, OVP, Time, OCP, CR-LED, Battery, Auto list, Short circuit, Load effect, Combination |
Applications
- Power supply testing and validation.
- Battery discharge and simulation testing.
- Charger performance evaluation.
- LED driver and lighting system testing.
- Over-current and protection testing.
- Automated production line testing.