Instek GPR-H Series   Patent No: 81011 FEATURES :    0.01% High Regulation Constant Voltage and Constant Current Operation Internal Select for Continuous or Dynamic Load Low Ripple and Noise Overload and Reverse Polarity Protection 3 1/2 Digits 0.5" LED Display  Data Sheet   User Manual       SPECIFICATIONS      CONSTANT VOLTAGE      OPERATION Regulation Line regulation < 0.01% + 3mV Load regulation < 0.01% + 5mV ( < 10A)                        < 0.02% + 5mV ( > 10A) Ripple & Noise < 1mVrms 5Hz ~ 1MHz Recovery Time < 100µS (50% Load change, Minimum load 0.5A) Output Range 0 to rating voltage continuously adjustable      CONSTANT CURRENT      OPERATION Regulation Line regulation < 0.2% + 3mA Load regulation < 0.2% + 3mA Ripple Current < 5mArms(<20A), < 20mArms(<50A) Output Range 0 to rating amperes continuously adjustable      METER Digital 3 1/2 digits 0.5" LED display Accuracy + (0.5% of rdg + 2 digits)      INSULATION Chassis and Terminal 100MΩ or above ( DC 1000V ) Chassis and AC Cord 100MΩ or above ( DC 1000V )      POWER SOURCE AC 100V/120V/220V/240V+10%, 50/60Hz      ACCESSORIES Instruction manual x 1, Power cord x 1 Test lead GTL-105 x 1(<3A) or GTL-104 x 1(<10A) or Not Available >10A      DIMENSIONS 255(W) x 145(H) x 420(D) mm         SELECTION GUIDE 　 Model Output Volts (V) Output Amps (A) Digital GPR-0830HD 0 ~ 8 0 ~ 30 GPR-1820HD 0 ~ 18 0 ~ 20 GPR-3510HD 0 ~ 35 0 ~ 10 GPR-6060D 0 ~ 60 0 ~ 6 GPR-7550D 0 ~ 75 0 ~ 5 GPR-11H30D 0 ~ 110 0 ~ 3 GPR-30H10D 0 ~ 300 0 ~ 1 CE APPROVED：GPR-1820HD, GPR-3510HD, GPR-7550D, GPR-11H30D