Programmable High-Precision DC Bench Power Supply (SPPS-S3001 DIY)

Description

• Compact and lightweight; suitable for benchtop use and rack installation
• Refined appearance, flexible operation, and convenient use
• High precision with an original internal chip for stable, reliable performance
• High-gain amplifier switching-circuit design with fast transient response to help prevent unwanted voltage offset
• Intelligent temperature-controlled, low-noise fan

Suitable for factory production-line testing; mobile phone and computer repair; electrical appliance maintenance; car DVD and car audio work; product aging; electroplating and electrolysis involving resistors, jewelry, capacitors, relays, and DC motors; battery charging, including car batteries; laboratories, scientific research and teaching, factories, maintenance power supplies, schools, and production lines; as well as security monitoring, fire protection, and building automation systems. Model names: SPPS-S2001, SPPS-S3001, SPPS-D2001, SPPS-D3001. Listed output voltage ranges: 0200 V, 0300 V, 0200 V, and 0300 V. Listed output current: 01 A for each model. Listed output power: 200 W, 300 W, 200 W, and 300 W. Functions and specifications: Four groups of voltage and current settings can be stored. Constant-voltage mode with continuously adjustable output from 0 to the rated voltage; voltage stability 0.1% + 3 mV; low-voltage specification 0.20.3% + 3 mV; load stability 0.5% + 3 mV; ripple and noise 30 mV RMS. Constant-current mode with continuously adjustable output from 0 to the rated current; current stability 0.2% + 3 mA; load stability 0.2% + 3 mA; ripple and noise listed as 20 mA RMS; recovery time listed as 500 s; temperature coefficient 100 ppm/C. Display: 5.3 cm 4.8 cm LCD screen; stated eye-protection function for 24-hour operation; display accuracy 0.5% + 2 digits; voltage resolution 0.01 V; current resolution 0.001 A; power resolution 0.001 W. Four stored settings and fine adjustment are supported. Product dimensions: 25.2 cm 17 cm 8.4 cm. USB interface: 5 V, 2 A for mobile phone repair and charging. Net weight: 1.4 kg. Fuse: 3.1/5 A for AC 230 V input and 5 A for AC 115 V input. Color: white or black, optional. The built-in cooling fan switches on intelligently when the temperature exceeds 50C. Additional parameters listed: output voltage range 0400 V, continuously adjustable output current range 020 A, power 400 W, LCD four-digit voltage/current display, load regulation 0.02% + 2 mV and 0.02% + 2 mA, setting accuracy 0.1% for voltage and current, output accuracy 0.1% for voltage and current, setting resolution 10 mV and 1 mA, display resolution 10 mV and 1 mA, ripple and noise 2 mV RMS for voltage and 3 mA for current, readback-value temperature coefficient 50 ppm, dimensions 185 85 120 mm, and weight 1.85 kg. Included: 1 DC power supply, 1 power adapter, 1 black output lead, 1 red output lead, 1 instruction manual, 1 package box, and 2 protective foam pieces.

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