UNI-T UAP500A Programmable AC Power Source & AC Power Supply (Variable Frequency)
The UNI-T UAP500A is a single-phase programmable AC power source designed to provide stable, low-distortion sine-wave output with precise voltage and frequency control. It is ideal for R&D laboratories, production lines, quality inspection, lighting tests, motor testing, and power supply verification.
With DDS waveform generation, wide voltage and frequency ranges, current-limiting protection, and remote control support, the UAP500A can accurately simulate normal and abnormal AC input conditions for comprehensive product testing.
Key Features
- Programmable AC power source, single-phase output
- Low-distortion sine wave output using DDS technology
- Wide output voltage range: 0–150 V / 0–300 V (selectable)
- Variable output frequency: 45 Hz – 250 Hz (0.01 Hz resolution)
- Constant voltage output, continuously adjustable
- Current limiting protection with automatic output shutdown
- Four-window VA LCD display (V / A / W / Hz / PF)
- 9 programmable memory presets (M1–M9)
- One-key high / low voltage range switching
- Output delay function to protect surge-sensitive DUTs
- Front and rear AC output terminals for flexible wiring
- RS-232C remote communication
- SCPI & MODBUS protocol support
- Numeric keypad, rotary knob, and direction keys for fast setup
Electrical Specifications – UAP500A
Input
- Phase: 1φ 2-wire
- Rated Input Voltage: 220 V ±10%
- Input Frequency: 47 Hz – 63 Hz
Output
- Phase: 1φ 2-wire
- Rated Capacity: 500 VA
-
Output Voltage Range:
- 0 – 150 VAC (Low range)
- 0 – 300 VAC (High range)
-
Maximum Output Current:
- 4.2 A @ 120 V
- 2.1 A @ 240 V
- Output Frequency: 45 – 250 Hz
- Frequency Resolution: 0.01 Hz
- Voltage Resolution: 0.01 V
- Current Resolution: 0.001 A
Stability & Accuracy
-
Load Stability:
- 1% (standard)
- 3% (120 V / 240 V resistive load)
- Frequency Stability: 0.01%
- Voltage Accuracy: ±1% FS
- Current Accuracy: ±0.5% FS + 5 digits
- Frequency Accuracy: ±0.01% FS + 5 digits
- Power Accuracy: ±0.5% FS + 5 digits
Measurement Parameters
- Voltage (Vrms)
- Current (Arms)
- Frequency (Hz)
- Active Power (W)
- Power Factor (PF)
Protection & Safety
- Over-current protection
- Over-temperature protection
- Over-load protection
- Short-circuit protection
- Adjustable current limit
- Output delay (soft-start protection)
Communication & Control
- Interface: RS-232C
- Protocols: SCPI, MODBUS
- Supports PC monitoring software and automation system integration
General Specifications
- Operation Mode: SPWM (Sinusoidal PWM)
- Display: VA LCD, four-window layout
-
Operating Environment:
- Temperature: 0 – 40 °C
- Humidity: 20 – 80 % RH
- Dimensions (W × H × D): 430 × 132 × 483 mm
- Net Weight: 17.5 kg
-
Gross Weight: 21.1 kg
Typical Applications
- Power supply and adapter testing
- Motor and transformer testing
- Lighting and LED driver testing
- R&D laboratory simulation
- Production line quality inspection
- AC input tolerance and reliability testing
Summary
The UNI-T UAP500A is a reliable, programmable 500 VA AC power source offering wide voltage and frequency control, accurate measurement, and industrial-grade protection, making it an excellent solution for professional testing environments and automated systems.
Download