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Caution

1.  Use a grounded 3 pin AC source. 

2.  This unit is for indoor use only. 

3.  Do not operate or place this unit in a humid, dusty, in direct 

sunlight location or near any heat source. 

4.  Before plugging into local AC mains, check with the rating label 

at the back of the unit. 

5.  Do not block any ventilation openings of the unit. 

6.  This unit must be used within the specified rating, regular 

excessive continuous loading may cause damage to the power 
supply. 

7.  The gauge size of input power cable must be at least 0.75mm2 

and the total length of power cable must not exceed 3m.

 

Operation Environmental Condition 

•  10-80% R.H. 

•  Maximum relative humidity 80% for temperature up to 31°C 

decreasing linearly to 50% relative humidity at 40°C. 

•  Altitude up to 2000m 

•  Installation category : CAT 2 

•  Pollution degree: 2 

•  Mains supply voltage fluctuation up to ±10% of the normal 

voltage

Introduction

This series of 100W Switching Mode Power Supplies with Current-
Limiting  Control  is  designed  with  the  objectives  of  high  accuracy, 
compactness and easy portability. Rotary encoder tuning with MCU 
are used for voltage and current control. 4 digit display LCD of volt-
age and current for high precision. 

Summary of Contents for PSC-260

Page 1: ...OPERATION MANUAL CIRCUIT TEST Switching Mode Power Supply PSC 260 PSC 336 PSC 520 ...

Page 2: ...PSC 260 336 520 08R13 ...

Page 3: ...r supply or connected equipment CAUTION Failure to observe this warning may result in damage to equipment and Improper functioning of the power supply Warning 1 Do not use this power supply near water 2 Do not operate or touch this power supply with wet hands 3 Do not open the casing of the power supply when it is con nected to ac mains 4 Refer all servicing to qualified service personnel only 5 B...

Page 4: ...wer cable must be at least 0 75mm2 and the total length of power cable must not exceed 3m Operation Environmental Condition 10 80 R H Maximum relative humidity 80 for temperature up to 31 C decreasing linearly to 50 relative humidity at 40 C Altitude up to 2000m Installation category CAT 2 Pollution degree 2 Mains supply voltage fluctuation up to 10 of the normal voltage Introduction This series o...

Page 5: ...and fine tuning Output Current Tuning knob Push the knob to toggle the coarse and fine tuning Output On Off push button Output Terminal Positive Red color GND Terminal Green color Chassis ground terminal nor mally this is to be short to or as required by user Output Terminal Negative Black color LCD Display panel showing 4 digit voltage current meter CV constant voltage mode CC constant current mo...

Page 6: ... power supply is designed to operate as a constant voltage source or as a constant current source Automatic crossover to either mode of operation occurs when the load condition changes as following CONSTANT VOLTAGE CV AUTOMATIC CROSSOVER CONSTANT CURRENT CC The power supply functions as a constant voltage source CV as long as the load current is less than the preset current limiting value When the...

Page 7: ... on the power supply and the LCD display should be on at the same time 3 The CV icon should be shown on the display 4 Turn to current volume knob 5 to maximum clockwise if you do not require lower Current limiting value otherwise do the preset the CC limiting procedure 5 Set your desired output voltage and then turn off the output terminal by push button 6 6 Connect to your load positive to positi...

Page 8: ...voltage value at the time of the operation OVER TEMPERATURE PROTECTION When the temperature inside the power supply becomes higher than a pre determined value the output voltage and current of the power supply will automatically decrease to zero to prevent dam age to power supply When the temperature inside the power sup ply returns to about 65 C then the power supply will automatically return to ...

Page 9: ...ion Frequency 80KHz to 120KHz Power Factor 0 65 Efficiency at Maximum Power 80 80 78 Volt and Amp Control Type Rotary Encoder Voltmeter and Ammeter Display 4 Digit Voltmeter Accuracy 0 5 5counts for range V 5V 0 5 3counts for range V 5V 0 5 5counts for range V 10V 0 5 3counts for range V 10V 0 5 5counts for range V 20V 0 5 3counts for range V 20V Ammeter Accuracy 0 5 5counts for range I 2A 0 5 3co...

Page 10: ...CIRCUIT TEST ELEC TRONICS Division of R P Electronic Components Ltd BURNABY BC CANADA V5J 5M8 ...

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