Features - Built-in digital numeric display (3 DIGIT RED LED) - Variable power : up to 30V DC - Variable current : up to 3A - Compact size and light weight - Low Power Consumption - Built-in current limiting circuit - Large, easy to read analog metering - Low ripple : < 2mVrms - Output polarity : (+), (-), GND, positive or negative

Block Diagram

Specification   PS-303 Output Voltage Current 0 ~ 30 V 0 ~ 3 A Constant voltage characteristics (CV mode) Input regulation Load regulation Ripple and noise 8mV 8mV 0.5mV rms, 4mV P-P Constant current characteristics (CC mode) Input regulation Load regulation Ripple and noise 4mA 10mA 3mA rms Digital meter Indication Voltmeter indication Accuracy Ammeter indication Accuracy Insulation resistance Between chassis and input power supply Between chassis and output terminal Output polarity   Operating temp. and humidity range Storage temp. and humidity range Ground proof voltage Input power Supply (Voltage fluctuation within 10%) Dimensions & weight   Max 99.9V, fixed range ± (0.2% rdg + 2digits) Max 99.9V, fixed range ± (1.0% rdg + 3digits) DC500V 30MΩ   DC500V 20MΩ   +(RED), -(BLACK), GND(GREEN), positive or negative grounding is possible 0 ~ 35℃, 10 ~ 80% RH -20 ~ 60℃, 10 ~ 85% RH ±200V AC115V/230V selectable   124 x 160 x 326mm Approx. 5Kg