Multiple Output Programmable Linear D.C. Power The GPD-3303S / GPD-3303D series inherits the superior technology and high quality, which GWInstek has established through its long history of power supply design and manufacturing. The GPD-3303S /GPD-3303D series provides 195W output power, three isolated output channels, high resolution output(GPD-3303S ), digital control panel, 4 sets of setup memory, USB remote control, smart cooling fan control, high reliability, and compact size. The GPD-3303S / GPD-3303D establish a new benchmark for economic programmable linear D.C. power supply market segment. The most remarkable feature of this series product with minimum 1mV / 1mA resolution of GPD-3303S, which right fits into the applications needing accurate control of power source.GPD-3303D, another member of the family, is considered a digitally-upgraded version of GPS-3303.FEATURES Three independent output: 30V/3A x 2, 2.5V/3.3V/5V/3A x 14 LED displays: 3 digits after decimal pointMinimum resolution: 1mV/1mADigital panel control (rotary encoder Switch, rubber key with indicator)User-friendly operation, coarse/fine volume control4 set save/recallKey-lockWarning buzzerOutput on/offTracking series and parallel modeSmart cooling fan achieving low noiseLight-weight and compact designUSB interfacePC softwareLabview driver SPECIFICATIONS DC OUTPUT CH1, CH2 CH3 Voltage 0~30V 2.5V/3.3V/5V Current 0~3A 3A Max. (Fixed) Tracking Series Voltage 0~60V --- Tracking Parallel Current 0~6A --- CONSTANT VOLTAGE OPERATION Line Regulation 0.01% + 3mV Load Regulation 0.01% + 3mV (rating current3A)0.02% + 5mV (rating current >3A) Ripple & Noise 1mVrms 5Hz ~ 1MHz Recovery Time 100S ( 50% Load change, Minimum load 0.5A ) Temp. Coefficient 300ppm/C Output Range 0 to rating voltage continously adjustable CONSTANT CURRENT OPERATION Line Regulation 0.2% + 3mA Load Regulation 0.2% + 3mA Ripple Current 3mArms Output Range 0 to rating current continously adjustable TRACKING OPERATION Parallel Regulation Line Regulation 0.01% + 3mVLoad Regulation 0.01% + 3mV (rating current3A)Load Regulation0.02% + 5mV (rating current >3A) Series Regulation Line Regulation0.01% + 5mVLoad Regulation300mVTracking Error 0.5% 10mV (10 ~ 30V no load)(with load added300mV)Tracking Error0.5% 30mV (0 ~ 9.99V no load)(with load added300mV) CH3 OPERATION Output Voltage 2.5V/3.3V/5V 8% Output Current 3A Line Regulation (255C) 5mV Load Regulation (255C) 15mV Ripple & Noise 2mVrms METER Display 4 3/4 Digits 0.4" LED Display Voltage Resolution 1mV Current Resolution 1mA Program Accuracy (255C) Voltage: (0.03% of RDG + 10 digits)Current: (0.3% of RDG + 10 digits) Readback Accuracy (255C) Voltage: (0.03% of RDG + 10 digits)Current: (0.3% of RDG + 10 digits) KEY LOCK Yes MEMORY SAVE/RECALL 4 sets POWER SOURCE AC 100V/120V/220V/230V 10%, 50/60Hz ACCESSORIES User manual x 1Power cord x 1 European test lead GTL-203 x 1, GTL-204 x 2 DIMENSIONS & WEIGHT 210(W) x 130(H) x 265(D)mm, Approx. 7kg