RS PRO RSPD3303C User manual

Quick Start
RSPD3303C
Programmable DC Power Supply

2
General Safety Summary
Please review the following safety precautions carefully to avoid
personal injury or damage to this product or any product connected
to it. To prevent potential danger, please use the instrument as
specified.
Use proper power cord
Only the power cord designed for the instrument and authorized by
local country could be used.
Power supply
AC Input Voltages: 100V/110V/220V/230V ±10%, 50/60Hz.
Use proper fuse
The fuse types: 100V/110V(T6.3A/250V) 220V/230V
(T3.15A/250V)
Make sure to use the correct type of fuse before turning on the
instrument.
Do not connect the power cord before replacing the fuse.
Find out the reason why the fuse burned out before replacing the
fuse.
Ground the instrument
The instrument is grounded through the protective terra conductor
of the power cord. To avoid electric shock, the grounding conductor
must be connected to the earth. Make sure that the instrument is
properly grounded before any inputs or outputs.
Observe all terminal ratings
To avoid fire or electric shock, please observe all ratings and
symbols on the instrument. Read this guide carefully to know more
details about the ratings before connection.

3
Keep proper ventilation
Inadequate ventilation may cause an increase of temperature,
which will lead to further damage. Please keep proper ventilation
and check the fan and air-vents regularly when using the
instrument.
Operate condition
Location: indoor, no strong light, almost no Interfering pollution
Comparative humidity: <80%
Altitude: <2000m
Temperature: 0℃to 40℃
Do not operate in an explosive atmosphere
To avoid personal injury or damage to instrument, please do not
operate in an explosive atmosphere.
Keep surface of the product clean and dry
To avoid dust or moisture in the air, which may influence the
performance of the instrument, please keep surface of
the product clean and dry.

4
Safety Terms and Symbols
Terms may appear on the product:
DANGER : Indicates direct injury or hazard that may happen.
WARNING : Indicates potential injury or hazard that may happen.
CAUTION : Indicates potential damage to the instrument or other
property that may happen.
Symbols may appear on the product:
Hazardous Protective Warning Earth Power
Voltage Earth Ground Ground Switch

5
Brief Introduction
RSPD3303C LED series Programmable DC Power Supply is
convenient, flexible and multi-function. It is designed with three
groups of independent output terminals, the output voltage of two
groups is adjustable and another group is fixed to select: 2.5V, 3.3V,
and 5V. The instrument also provides output short circuit and
overload protection.
Main Features
 Three independent output channels, two of which are
controllable, with a total power up to 195W
 Compatible design for power voltage: 100V, 110V, 220V and
230V to satisfy different power network
 Capable of saving and recalling set parameters
 Perfect PC software to realize the real-time control through
USBTMC.

6
Chapter 1 Quick Guide
In this chapter, we mainly introduce the panel display interface
and inspecting the new machine.Reading the following steps will
give you a quick understanding on operation.
General Inspection
1. Inspect the shipping container.
Keep
the damaged shipping container or cushioning material
until the contents of the shipment have been completely
checked and the instrument has passed both electrical and
mechanical tests.
2. Inspect the instrument.
If
there are instruments found damaged, defective or failure in
electrical and mechanical tests, please contact us.
3. Check the accessories.
Please check the accessories according to the packing list. If the
accessories are incomplete or damaged, please contact us
.

7
Safety Considerations
To ensure that the instrument can work normally, please conduct
necessary inspection before using the RSPD3303C.
Input Power Requirement
The RSPD3303C allows a 50Hz/60Hz frequency, and four levels of
AC power: 100V/120V/220V/230V. You can select required power
voltage with the “DIP Switch ” at the rear panel according to the
actual demand.
Warning
To switch to the required power voltage, please disconnect the
power cord first.
Electrical Check
Please use the power cord provided and connect the
instrument to AC power. Check the power as follows.
1. Connect the power supply
Warning
To avoid electric shock, please make sure that the instrument is
grounded correctly.
2. Turn on the power switch
Press the button POWER to enter boot interface, the system
then returns to the default setting.

8
The Front Panel
1
2 3 4 5
6
7
8
9
10 11 12 13 14 15
NO. Description NO. Description
1 Logo 9 CH3 DIP Switch
2 LED Display 10 Power Switch
3 Model 11 CH1 Output Terminal
4 Configuration button 12 Ground Terminal
5 Multi-function knob 13 CH2 Output Terminal
6 FineAdjust button 14 CV/CC Indicator Light
7 Voltage/Current button 15 CH3 Output Terminal
8 Channel Control button

9
Instruction for Buttons
Buttons for setting parameters
NO.1- 5
: Press the button to choose the storage location
SER
PARA
LOCK
SAVE
: Press the button to set series mode of CH1/CH2.
: Press the button to set parallel mode of CH1/CH2.
: Long press the button to turn on/off the keylock function.
:Press the button to enter the storage system for saving files.
RECALL
: Press the button to enter the storage system for recalling files.
Buttons for controlling the channel
CH1
CH2
: Press the button to select CH1 as the current channel
: Press the button to select CH2 as the current channel
ON/OFF
: Press the button to turn on/off output of the current channel
CH3 ON/OFF
: Press the button to turn on/off the CH3 output.
ALL ON/OFF
Other buttons
: Press the button to turn on/off all channels
FINE
V A
: Press the button to open the fine adjust function and modify the
parameter in the minimum step
: To select between voltage and current.

10
The Front Panel Terminals
The positive/negative output terminals of CH1, CH2, CH3, and the
common GND for CH1, CH2 are located on the front panel. Refer
to later “control panel operation” for wiring method details.

11
User Interface
1
2
3
1: Channel Logo
2 : Voltage set/Readback value
3 : Current set/Readback value

12
The Rear Panel
1
2
7
6
5 4 3
Description:
1
Warning message
2 AC power DIP switch
3 Instruction for theAC input voltage
4 AC power socket
5 Fan vent
6 CE certification mark
7 USB interface

13
Output Checking
To ensure the instrument is operating correctly,
please check the output voltage and current before load is connected.
1. Output voltage checking
(1)
With the instrument no load, turn on the power, and make
sure the current value displaying is not zero
(2) Check the output voltage of CH1/CH2
Turn on CH1/CH2 channel and the instrument will work
in
CV mode. Check whether the voltage value is
adjustable from 0V to 32V.
2. Current output check
(1) Turn on the power.
(2) Check the output current of CH1/CH2.
Use an insulated wire to connect the positive and negative
terminal of CH1/CH2
(3) Turn on CH1/CH2
Select voltage and revolve the knob to set the value to 32V
Select current and revolve the knob to set the value to 0A
Check whether the current value is adjustable from 0A to
3.2A.

14
Chapter 2 Control Panel Operation
In this chapter，the function and operation of RSPD3303C control
panel will be introduced in detail to give you an all-around
understanding of it.
Brief introduction
Output Summary
CH1/CH2 Independent Output
CH3 Independent Output
Parallel Output
Series Output
Save and Recall

15
Output Summary
RSPD3303C is designed with three independent outputs, two of
which are adjustable in voltage value and the other includes a set of
selectable voltage values: 2.5V, 3.3V or 5.0V.
Independent/Parallel/Series
RSPD3303C has three output modes: independent, parallel and
series that could be selected through the track switch on the front
panel. In independent mode, the output current and voltage are
controlled respectively. In parallel mode, the current value is twice
that of single channel. In the series mode, the voltage value is twice
that of single channel.
Constant Current/Voltage
In constant current mode (series/track mode), the current value is rated.
When the voltage value are under its rating, the indicator light displays
red. The instrument will automatically return to constant voltage mode
when the current value is under rated. In parallel 1 mode, the accessory
channel remains in constant current mode neglecting shift of the current
value.
In constant voltage mode, the voltage value is rated. When the current
value are under its rating, the indicator light dispays green.
The instrument will turn to constant current mode when the current
value returns to its rating.

16
CH1/CH2 Independent Output
Instruction CH1 and CH2 are working in independent mode and
insulated from the ground.
Output ratings 0~30V/0~3A(Max: 32V, 3.2A)
Operation steps
1. Make sure that parallel/series mode is off.
2. Connect load to the positive and negative terminals of CH1/CH2.
3. Set the voltage (current) value of CH1/CH2: Firstly, press V (or A)
to select the voltage (current) parameter needed to modify. Then
revolve the multi-function knob to set the wanted value (You
could press FINE to make accurate adjusting).
Coarse adjusting: 0.1V or 0.1A each step.
Fine adjusting: the least precision each step.
4. Open output: Press ON/OFF button to turn on the output, the
channel
works in CC or CV mode and its indicator light gets
lit immediately.

17
CH3 Independent mode
Instruction CH3 works independently from CH1, CH2, and its
voltage and current ratings are: 2.5V, 3.3V, 5V, 3A.
Output ratings 2.5V/3.3V/5V, 3A
Operation steps:
1. Connect the load to the positive and negative terminal of CH3
channel.
2. Select the required voltage value by moving the “DIP switch” of
CH3.
3. Open the output: Press ON/OFF button to turn on the channel
and the indicator light gets lit immediately.
CV CC
When the current value gets higher than 3A, the overload indicator
light turns red and the working mode of CH3 turns to CC mode from
CV mode.
Note: “Overload” does not mean abnormal operation.

18
CH1/CH2 Series Mode
Instruction ： In the series mode, CH1 and CH2 are linked internally
into one channel controlled by CH1. The output
voltage value is twice compared with that of single
channel.
Output ratings 0~60V/0~3A(Max: 64V, 3.2A)
Operation steps ：
1. Press the SER to start the Series mode, and the indicator light
turns bright
2. Connect the load to the positive terminal of CH2 and the
negative terminal of CH1
3. Turn on CH1 and set its current value to 3A. In the default setup,
the instrument works in “Coarse”, you can turn to “Fine” by
pressing FINE
Coarse: 0.1V or 0.1Aeach step
Fine: the least precision each step
4. Turn on CH1and set the output voltage/current value by
revolving themulti-function knob
5. Press ON/OFF button to open the output.
Note: You can identify the current working state “CC” or “CV” by
referring to the indicator light.(red means CV, green means CC).

19
CH1/CH2 Parallel Mode
Instruction In the parallel mode, CH1 and CH2 are linked internally
into one channel controlled by CH1. The output current
value is twice as much as the single channel.
Output ratings 0~30V/0~6A(Max: 32V, 6.4A)
Operation steps:
1. Press the PARA button to start Parallel mode, and the indicator
light turns bright immediately
2. Connect the load to the positive and negative terminals of CH1
3. Press ON/OFF button to open the output and the indicator light
turns bright.
Turn on CH1 and set its output voltage/current value by
revolving the multi-function knob. In the default setup, the
instrument works in “Coarse”, you could turn to “Fine” by
pressing FINE button.
Note: You can identity the current working state “CC” or “CV” refer
to the indicator light.(red means CV, green means CC). In
parallel mode, CH2 only works in CC mode.

20
Save and Recall
Five groups of setups can be saved in memory. Contents of setups
including:
 Independent/series/parallel mode
 Output voltage/current value
Steps for saving setup
1. Set the state needed to save
2. Press SAVE to enter the save interface
3. Select the wanted file group by pressing NO.1-5
4. Press SAVE again to save the current state to the specified file
group.
Steps for recalling setup
1. Press RECALL to enter the recall interface
2. Select the wanted file group by pressing NO.1-5
3. Press RECALL again to read the previously saved file.