REGULATED DC POWER SUPPLY
Contents
1. RH Storage Ambient SPECIFICATIONS Model ariable Output Dual output models Single output models lt 0 01 3mV Display 0 596 1digit Output Voltage 5V 3 3 only for models of single channel 5 5 5 5 ols Als S ds em TST EE p o e S 2 8 2 apo tri d l8 d o E 3E Blo 5 240V 10 240X150X270 mm 120X150X270 mm Approx 10kg Approx 5kg FRONT PANEL amp OPERATION MEILI REGULATED DC POWER SUPPLY 1 3 Ir I LLLI maA r1 JW LI LI 0 30V I 0 3A DUAL OUTPUT 340 Sun 7 9 For 2A 3A and 5A models POWER SUPPLY Oc c O VOLTAGE inn nn O ULA 300 CURRENT OUTPUT 16 21 69 EA ON a OFF 1 1 0 For 10A 20A models2. REGULATED DC POWER SUPPLY OPERATION MANUAL ACCESSORIES Power Cord Ipc User s Manual Ipc Fuse CAUTION 1 If there is no problem with the line power and CV indicator dose not light after power on the fuse probably was broken Power off and disconnect the power cord and change the fuse When working in Constant Voltage state if output voltage lower than what was preset and CC indicator lights the instrument automatically turn to Constant Current state You must check the load or increase the output current When working in Constant Current state if output current lower than what was preset and CV indicator lights the instrument automatically turn to Constant Voltage state You must check the load or increase the output voltage When the instrument is unstable in Constant Voltage state Probably the line voltage is under 90 of the rated value If the problem is not caused by the line voltage contact your nearest dealer INDEX vd btodueHom e RO EISE SN 2 e a oo Mora ehe doen 3 Speeihealions dis 4 Front panel amp operations 5 Panel tea erkennt 6 gt O OE T EET RD T RE EET 7 Accessories amp Maintenance 8 1 INTRODUCTION 300 series power supply is a newly developed model with high stability and accuracy It has over current over voltage over heat functions overall output protectio
3. ed to the preset current value 5 Independent Series Parallel Controls When the power supply is set in series mode two channels are connected serially Voltage of Channel A will follow that of Channel B Then a pair of same value and different polarity voltage is acquired and you can get a doubled voltage from positive port of CH B and negative port of CH A When the power supply is set in parallel mode two channels are connected parallel And you can get a doubled current from either port of two channels 6 Power switch DS Voltage adjustment If in tracking state the switches of channel A are not available 900 Current adjustment to set constant current value 1 Output port No 1 fixed 5V 3A output 12 Output port No 2 it is controlled by switch 7 and 9 13 Output port No 3 it is controlled by switch 8 and 10 6 MODELS Current Fixed Voltage Dual Single Model 0 2 output 0 30V 0 3A 0 5A 0 10A 0 20A output output A 5V 3A 302A e e e 303A e e 305A e e 3010A e e e 3020A e 302B e e e 302B e e e e 302B e 302DII e e e e 303DII e e e 305DII e e 3010DII e e e Input Voltage 240VAC 10 50 60HZ Rated Output Power 60W X 2 120w 2A 90W X 2 180w 3A 150W X 2 300w 5A Operating Ambient Temperature 0 C 40 C Humidity lt 90 RH Temperature 20 C 80 C Humidity lt 80
4. n Its unique block like structure makes it easily to be extended from single channel to multi channel It is an ideal instrument for R amp D departments colleges and factories Operation Connection of output ports Port No 2 and No 3 is in floating mode you can get different polarity voltage by connecting positive or negative terminal on both sides to the ground terminal in the middle Port No 1 is a fixed output Its negative terminal had been grounded internally Voltage Setting Adjust voltage knob to get desired voltage Current Setting Turn current control knob CCW to get a small value of current short cut output port adjust current knob to get a desired value Serial Usage Select series mode with Buttons 5 Use end of port no 3 and end of port no 2 as output terminal Output voltage is the summation of channel A and channel B Parallel Usage Select series mode with Buttons 5 Use either one of output terminals of two channels a doubled current can be acquired Functions of the controls on front panel DG 3 digit LED display of voltage and current 314 CV and CC indicators If the current calculated by Ohm s law through the load is lower than the preset current value of the power supply CV indicator lights the power supply is working in Constant Voltage status Otherwise CC indicator lights the power supply is in Constant Current status And the actual current though the load is limit
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