UNI-T UDP3303C User Manual Download | Manualshive

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UDP3303C

Linear DC Power Supply

User Manual

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Summary of Contents for UDP3303C

Page 1: ...UDP3303C Linear DC Power Supply User Manual ...

Page 2: ...e contact your seller directly Uni Trend will not be responsible for any special indirect incidental or subsequent damage or loss caused by using this device UDP3303C Linear DC Power Supply Introduction The UDP3303C DC power supply is a cost effective program control DC power supply with outstanding performance reliable output and clear interface The UDP3303C DC power supply has three independent ...

Page 3: ...ock Make sure the cover is tightly screwed before using the instrument Only use fuses that meet the model and rating value T6 3AL 250V for 110V 120V T3 15AL 250V for 220V 230V Never touch exposed joints and components after connecting the power supply Please check the vents and fans regularly to ensure good ventilation is maintained during use Poor ventilation will cause high temperature which wil...

Page 4: ...he AC SELECTOR on the rear panel please disconnect the power before switching the input voltage The plug is used as the disconnecting device of the product The plug of the product should be inserted into the socket easily accessible to the user UDP3303C Main Features 4 digit voltage and current high precision display Overvoltage and overcurrent protection Output voltage current settings viewable R...

Page 5: ... Ground Channel 2 output Channel 3 output Channel CV CC indicator Channel 3 scale button Current adjustment knob Channel 3 scale indicators Voltage adjustment knob Overcurrent protection Lock and unlock buttons Buzzer on and off Overvoltage protection CH1 CH2 output on and off View settings when output is on Channel 2 button Channel 1 button Store buttons LCD display Front Panel 0 30V 3 0A 0 30V 3...

Page 6: ...ack Accuracy 25 C 5 C Voltage 0 1 30mV Current 0 5 2mA Ripple and Noise 5Hz 1MHz Voltage 1mVrms Current 3mArms Temperature Coefficient Voltage 300ppm Current 300ppm Parallel Mode Line Regulation 0 01 3mV Load Regulation 0 01 3mV rated current 3A 0 02 5mV rated current 3A Series Mode Line Regulation 0 01 5mV Load Regulation 300mV Error 0 5 10mV 10 30V no load access load 300mV 0 5 30mV 0 9 99V no l...

Page 7: ...or will flash on the CH1 current position press the current knob to move the cursor and rotate the knob to adjust the current value Press CH2 to set the CH2 voltage and current values with the same method above Press the OUTPUT button to enable CH1 CH2 and CH3 outputs after voltage and current setting With the shutdown memory function the last set value can be automatically restored when the devic...

Page 8: ...and the series mode will be restored when the device is restarted The series output connection is as follows 2 2 Parallel Settings Press CH2 button for 3s to enter parallel mode the PARA symbol will be on CH1 is the main positive output of parallel and CH1 is the slave negative output The parallel voltage and current settings can only be adjusted in CH1 and the CH2 settings will follow that of CH1...

Page 9: ...appear later Short press OVP button again backlight off to disable overvoltage protection Long press OCP button 3s to enter OCP threshold setting press CH1 or CH2 to select the channel then rotate the current knob to set the OCP limit long press OCP button again to exit the OCP setting Short press OCP button backlight on to enable the overcurrent protection if the output current exceeds the OCP se...

Page 10: ... the CH3 button the cursor will flash on CH3 voltage and can be fine adjusted The shutdown has a memory function The last set value will be restored when the device is started up next time The CH3 operation and display interfaces are as follows 7 M1 M5 Store Recall Functions Introduction After output parameters are set long press one of the M1 M5 buttons 3s to save the setting Short press one of t...

Page 11: ...programing and upgrade and output control of power supply by upper computer 9 OTP over temperature protection Overview Inside the power supply there are two thermistors placed on the heat sink which has the maximum heat Once the power supply fails and the temperature of the heat sink reaches about 100 the over temperature protection is triggered and the output will be turned off with the OTP symbo...

Page 12: ...3s the buzzer will be off With the shutdown memory function the last saved settings can be restored when the device is started up next time When the buzzer is enabled it beeps for example Power on off CH1 CH2 setting switching Independent series parallel switching Output on off OVP OCP setup and on off Pressing the voltage current knob SET VIEW setting output display switching LOCK UNLOCK operatio...

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