Triplett PS303 User Manual Download Page 4

 
 

Front Panel

 

1) Power button 
2) CC (constant current) indicator: This 
indicator is on during constant current 
operation. 
3) CV (constant voltage) indicator: This 
indicator is on during constant voltage 
operation. 
4) Voltage display 
5) Current display 
6) Voltage coarse adjustment knob: Turn 
it clockwise to increase the output 
voltage and turn it counterclockwise to 
decrease the output voltage. 
7) Voltage fine adjustment knob: Turn it 
clockwise to increase the output voltage 
and turn it counterclockwise to decrease 
the output voltage. FINE and COARSE can be used together to adjust the 
output voltage to the exact value required. 
8) Current coarse adjustment knob: Turn it clockwise to increase the output 
current and turn it counterclockwise to decrease the output current. 
9) Current fine adjustment knob: Turn it clockwise to increase the output current 
and turn it counterclockwise to decrease the output current. FINE and COARSE 
can be used together to adjust the output current to the exact value required. 
10) 

0~30V output terminal “−”pole (black). 

11) Ground terminal (GND, green): This terminal is connected to the chassis 
and the ground wire of the power cord.  
12) 

0~30V output terminal “+”pole (red). 

Note:  
A temperature recovery fuse is installed inside the transformer of the product, 
when the internal temperature of the transformer exceeds 130 degrees, the 
temperature recovery fuse is automatically disconnected, and the transformer 
is powered off; when the 

temperature

 drops below 130 degrees, the 

temperature recovery fuse is automatically connected, and the transformer 
starts to supply power. 
 

 

Summary of Contents for PS303

Page 1: ...ies are high quality and stable devices that output pure and reliable signals Other features include 4 digit voltage and current LED display short circuit protection overload protection and reverse po...

Page 2: ...rage conditions Temperature 10 C 80 C relative humidity 80 Technical specifications Basic Function Technical specifications Model PS303 PS305 Rated output voltage 0 30V 0 30V Rated output current 0 3A...

Page 3: ...all resolution Voltage 10mV Voltage 10mV Current 1mA Current 1mA Temperature coefficient Voltage 300ppm C Current 300ppm C Instantaneous response time 100uS 50 load change minimum load 0 5A Display Di...

Page 4: ...output current and turn it counterclockwise to decrease the output current 9 Current fine adjustment knob Turn it clockwise to increase the output current and turn it counterclockwise to decrease the...

Page 5: ...Rear Panel Fuse holder Power supply input socket AC selector...

Page 6: ...ases and other harmful substances 4 Constant voltage output Switch the POWER switch to the on state The CV indicator will be on and the power supply will be under constant voltage operation Adjust VOL...

Page 7: ...before booting 1 Check the input power Make sure that the AC power cord meets the requirements in the AC input power column above NOTE Maximum input voltage 250V 2 Check the AC selector Make sure tha...

Page 8: ...the maximum voltage as required adjust the VOLTAGE knobs clockwise 4 At constant voltage state if the device is unstable the AC supply voltage may be lower than 99V 198V If any malfunction is serious...

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