Description : <br>Supply : 220V EU Plug \/AU 220V Plug \/ 110V US PlugDPS-305CM 30V 5A DC Digital Control Laboratory Adjustable Power Supply for Laptop Repair<br>DPS series digital input adjustable DC power supply is designed for laboratory， school， production lines and electronic repair designed for use. Voltage stability is high， small ripple factor， has improved the short circuit protection and overcurrent protection.<br>Due to the voltage value is a digital keyboard input， shorten the voltage setting time， completely overcome the traditional potentiometer adjustment poor contact caused by voltage instability phenomenon. The internal power supply containing electronic switch， can conveniently open the output load.<br>DPS305BM\/BF have the same function， but different current precision.DPS305CM\/CF have the same function， but different current precision. DPS305CM\/CF have BM\/BF all functions，  in additionthey have the storage and combination lock function.<br>DPS - 305 BM\/CM : Four digit current display measuring accuracy : 0000-0.450A ， &amp;plusmn;0.001 A                                                                                                                             0.450-5 A ， &amp;plusmn;0.01 ADPS - 305 BF\/CF : Five digit current display measuring accuracy : 00000-0.0450A， &amp;plusmn;0.0001A                                                                                                                         0.0450-0.450A， &amp;plusmn; 0.001A                                                                                                                         0.450-5 A， &amp;plusmn;0.01 A<br>    DPS-305BM in SKU144061   DPS-305BF in SKU144068   DPS-305CM in SKU144065   DPS-305CF in SKU144070<br>Specification : <br>1， rated working conditions and dimensionsPower supply voltage 220V + 10%50 \/ 60HzWorking conditions : 0-40 temperature relative humidity 80%Storage temperature : - 10-70 C 70% relative humidityDimensions : 265 x 128 x 150mm ( D * W * H )<br>2， regulated state parametersThe voltage output from 0 to 30V can be continuously adjusted ( to distinguish the value of 0.1V )The precision of output voltage : + 0.1VVoltage stability : &amp;lt; 0.01%+3mvLoad stability : &amp;lt; 0.01%+3mvRecovery time : 100uSRipple noise voltage : &amp;lt; 1mVRMS ( 5Hz-1MHz )Temperature coefficient : &amp;lt; 300PPM \/ C<br>3， a constant current state parametersConstant current value : 305 CM 5A Ma constant current maximum 500 mA303CM 3A Ma constant current maximum 500 mAConstant current output current from 0 to the nominal value of continuous adjustable ( to distinguish the value of 0.01A )Constant current output accuracy : + 0.01A ( MA constant current precision : + 1mA)The current stability of the &amp;lt; 0.1%+3mALoad stability &amp;lt; 0.1%+3mARipple noise current &amp;lt; 3mARMS<br>4， current and voltage display accuracyVoltage display accuracy : + 0.1V ( constant current state )Current display accuracy : + 0.01A ( constant