Zhaoxin KXN-3050D User manual

DC POWER SUPPLY
Instruction Manual
(Please read carefully and thoroughly this instruction
manual before operation, and keep it safely.)

extinguish, restart power switch. (Voltage adjustment knob must be
turned to the minimum or output voltage less than the limited
voltage.)
(9) Attention: Don't start power switch with the load. Otherwise, easy
to damage DC Power Supply and the load. When the load current
more than 10A,Please use the rear output terminal. When use large
current, wiring terminal and output line must tighten. Otherwise,
wiring terminal will be damaged caused by connecting the big
resistance leading to fever.
4、Repair
4-1 Fuse replacement:
If fuse is burnt out, the power supply will stop working. If such
case occurs, its cause must be found and corrected. Use same type
fuse replacement. Do not open the fuse box, unless problem occurs.
4-2 Repair:
If the interior of the power supply is burn out, it must be repaired by
professional maintenance personnel or by the manufacturer through
the distributor. Do not repair it by yourself for the safety reason.
1、Summary
RXN-3020D、JPS-3020D、RXN-3030D、JPS-3030D are single output
power supply.RXN-302D(A)-II、JPS-302D-II、MPS-3002L-3、
RXN-303D(A)-II、JPS-303D-II、MPS-3003L-3、RXN-305D(A)-II、
JPS-305D-II、MPS-3005L-3、RXN-3010D(A)-II、JPS-3010D-II、
MPS-3010L-3 are three-output power supply, collectively referred to as
high precision constant current, constant voltage DC Linear Power
Supply .Characterized by high precision and strong reliability. And the
three-output power supply with auto tracing, auto series and parallel
operation.
KXN-3050D、KXN-3060D、…KXN-30010D are high efficiency
constant current, constant voltage DC Switching Power Supply. This
series DC Power Supply feature is strong ability to load and work for
low failure rate. Also they with the over-voltage protection,
over-temperature protection, over-load protection, over-current
protection functions.(work efficiency≥86%)
RXN、JPS、MPS、KXN series constant voltage constant current DC
Power Supply design for technology product development, laboratory,
junior college, electronic production line and communications industry.
The technical parameters please see the table.
Caution: KXN Series are Switching Power Supply. Internal
have high-pressure circuit. Not professional
maintenance personnel must not repair, lest produce
danger.
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Table 1 RXN、JPS、MPS series
Model
Parameters
RXN-3020D
JPS-3020D
RXN-3030D
JPS-3030D
Voltage output range 0-30V 0-30V
Current output range 0-20A 0-30A
Current & Voltage
display model
RXN series D means LED digital display
PS series D means LCD digital display
Display precision ±1%±1word
Model
parameters
RXN-302A-II
RXN-302D-II
JPS-302D-II
MPS-3002L-3
RXN-303A-II
RXN-303D-II
JPS-303D-II
MPS-3003L-3
RXN-305A-II
RXN-305D-II
JPS-305D-II
MPS-3005L-3
RXN-3010A-II
RXN-3010D-II
JPS-3010D-II
MPS-3010L-3
Voltage
output
range
2×0-30V 2×0-30V 2×0-30V 2×0-30V
Current
output range 2×0-2A 2×0-3A 2×0-5A 2×0-10A
Single fixed
output 5V/3A
Current &
Voltage
display model
RXN series D means LED digital display，A means pointer display.
JPS series are LCD digital display.
MPS series are LED digital display.
Display
precision Pointer display: ±2.5%. Digital display:±1%±1word
3-2 Method of operation:
(1) Connect the machine to the mains supply: AC220V±10%.
(2) Adjust over-voltage protection knob and current adjustment knob to
the maximum along the clockwise direction.
(3) Put power switch to the “ON”, and the red pilot lamp will go on.
(4) Adjust voltage coarse and fine adjustment knob to the required
value.
(5) Connect the external load to the “+” and “－”output terminal.
(6) When it is used to meet high requirement, the binding post of
output “+”or “－”must be connected with “GND” binding post to
reduce the output ripple voltage.
(7) Constant current setting: First adjust the voltage to 3-10V arbitrary
value, then adjust current adjustment knob to 0(turn it to the end
anticlockwise).Using the line to connect the output of the positive
(“+”) and the negative (“-”) electrodes. Then clockwise adjust the
current adjustment knob to the required current value. Remove the
short-circuit line, adjust voltage adjustment knob to the required
voltage value, and now it is ready to be used.
(8) Over-voltage protection setting: First adjust the over-voltage
protection knob to the maximum along the clockwise direction.
Then turn on power switch. Adjust the voltage adjustment knob to
the required protection value. Then anticlockwise adjust the
over-voltage protection knob to over-voltage protection. Use
voltage must be within the scope of your limit. Otherwise it will
automatically protect. Meanwhile, the over-voltage protection pilot
lamp will go on.
Restart steps after the over-voltage protection: First turn off power
switch. After over-voltage protection pilot lamp completely
2 7

2-2 Rated working condition:
Input voltage: AC 220V±10% 50/60Hz
Working conditions: Temperature: -10 to 40℃℃
relative humidity ＜90%
Storage conditions: Temperature: -10 to℃40℃
relative humidity ＜80%
2-3 Constant voltage working condition:
Parameter Voltage
stability Load stability Ripple and noise
Model
RXN 、JPS、MPS series ≤0.01%+2mV ≤0.01%+2mV ≤1mVrms(RMS)
KXN series ≤0.2% ≤0.1% ≤0.5%P-P
2-4 Constant current working condition:
Parameter Current stability Ripple and noise
Model
RXN series ≤0.2%+3mA ≤3mArms
KXN series ≤0.3% ≤0.5%P-P
3、Operating Instruction
3-1 Notice:
(1) AC input: AC 220V±10% 50Hz（If input voltage is 110V±10%
60Hz, on the rear of the machine will have marks）
(2) Insulation: The radiator in the rear of the machine should have
enough space to dissipate heat.RXN-3020D、RXN-3030D and
KXN Series DC Power Supply have temperature control switch.
When inside temperature≥45 radiator fan start to rotate to℃
dissipate heat. Do not use the machine in a place where the
temperature is over 45℃.
Table 2 KXN series
Parameters
Model
Voltage
output
range
Current
output
range
Current &
Voltage
display model
Display
precision
KXN-3050D 0-30V 0-50A LED display
±1%±1word
KXN-3060D 0-30V 0-60A LED display
±1%±1word
KXN-3080D 0-30V 0-80A LED display
±1%±1word
KXN-30100D 0-30V 0-100A LED display
±1%±1word
KXN-5050D 0-50V 0-50A LED display
±1%±1word
KXN-5060D 0-50V 0-60A LED display
±1%±1word
KXN-5080D 0-50V 0-80A LED display
±1%±1word
KXN-50100D 0-50V 0-100A LED display
±1%±1word
KXN-6030D 0-60V 0-30A LED display
±1%±1word
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KXN-6040D 0-60V 0-40A LED display.
±1%±1word
KXN-6050D 0-60V 0-50A LED display
±1%±1word
KXN-6060D 0-60V 0-60A LED display
±1%±1word
KXN-6080D 0-60V 0-80A LED display
±1%±1word
KXN-10010D 0-100V 0-10A LED display ±1%±1word
KXN-10020D 0-100V 0-20A LED display ±1%±1word
KXN-10030D 0-100V 0-30A LED display ±1%±1word
KXN-20010D 0-200V 0-10A LED display ±1%±1word
KXN-20020D 0-200V 0-20A LED display ±1%±1word
KXN-30010D 0-300V 0-10A LED display ±1%±1word
2、Parameter specification and Panel
features
2-1 single-output panel features: Double-output panel feature:
(1)Current display (I way current/voltage display)
(2)Voltage display (II way current/voltage display)
(3)Current fine adjustment (RXN Series)
Current adjustment (KXN Series) (I way current adjustment)
(4)Current coarse adjustment (RXN Series)
Over-voltage protection adjustment
(KXN Series)
(I way voltage adjustment)
(5)Voltage fine adjustment (II way current adjustment)
(6)Voltage coarse adjustment (II way voltage adjustment)
(7)Power switch (Power switch)
(8)---------------- (I way output terminal)
(9)Output terminal (II way output terminal)
(10) -------------- (5V/3A fixed output terminal)
(11) Constant current and over-voltage
protection pilot lamp
(I way constant current、constant
voltage pilot lamp)
(12) Over-temperature protection and
Constant voltage pilot lamp
(II way constant current、constant
voltage pilot lamp)
(13)—————— (Independent /Series/Parallel switch,
LCD backlight select switch)
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