The Mastech HY3003D is a regulated, variable linear DC power supply delivering 0–30V and 0–3A output with continuous adjustment for electronic testing, experimentation, and educational applications. Dual digital displays provide real-time voltage and current monitoring. The unit incorporates constant current and short-circuit protection, ensuring safe operation across a broad range of test scenarios. Coarse and fine adjustment controls enable precise power delivery, while dedicated mode indicators distinguish between constant voltage (CV) and constant current (CC) operation.
Technical Specifications
Output Parameters
• Voltage: 0–30V DC, continuously adjustable
• Current: 0–3A DC, continuously adjustable
• Line Regulation (CV): ≤0.01% + 1mV; (CC): ≤0.2% + 1mA
• Load Regulation (CV): ≤0.01% + 3mV; (CC): ≤0.2% + 3mA
• Ripple and Noise (CV): ≤0.5mVrms; (CC): ≤3mArms
• Recovery Time: <100 microseconds
Input Power
• 104–127V AC (60Hz) or 207–253V AC (50Hz); 110V/220V AC (50/60Hz) switchable
Display Accuracy
• Voltage Indication: ±1% + 2 digits (LED/LCD)
• Current Indication: ±2% + 2 digits (LED/LCD)
Physical
• Dimensions: 291 × 158 × 136 mm (11.5" × 6.5" × 5.5")
• Weight: 6 kg (12 lbs)
• Operating Temperature: 0–40°C
• Operating Humidity: <90%
• Storage Temperature: −10°C to +70°C
• Storage Humidity: <70%
– Key Features
• Dual LED/LCD displays for simultaneous voltage and current readout
• Coarse and fine adjustment controls for both voltage and current
• CC and CV mode indicators for operational feedback
• Short-circuit and constant current protection
• Front-panel output terminals: positive, negative, and ground
– Typical Applications
• Component and circuit characterization
• Battery charging and testing
• Device burn-in and thermal stress evaluation
• Educational laboratory work
– Compatibility & Integration
Output connects via three front-panel terminals supporting standard test leads and fixtures common to benchtop environments.
