NAWEISZ NP3005H DC Power Supply Variable User Manual
- June 14, 2024
- NAWEISZ
Table of Contents
Regulated DC Power Supply
Green Power Series
User Manual Wuxi NaWei Technology Co.,Ltd
For Safety Use
Please follow the tips below when operating this unit.
- The device is intended for indoor use only.
- Do not open or repair the device. That will void the warranty.
- Do not use the device in a damp environment
- Keep the device away from heat or water, magnetic field.
- Keep the device and all loose parts (if any) away from children, pets and unauthoried persons.
- Don’t sharply bend, cut, stretch, knot, or step on the cord.
Don’t disconnect by pulling on the power cord, rather grab the plug.
Know The Device
NAWEIsz lab-type regulated power supply is a simple, accurate Constant Current
(CC), Constant Voltage (CV) DC power source that provides the displayed power
and current up to the listed ratings. It can be used to power equipment during
testing or during repair and maintenance, or for calibration stations. It will
power DIY projects on your work bench at home or for electronic and
telecommunication classes at educational institutions.
Technical Specifications
| Model | NP3005H | NP3010H | NP6005H |
|---|
Input features
Input Voltage| 110 VAC± 10 % 60Hz
Restore Conditions| Temperature : 10 – 70°C Relative Humidity ≤ 85 %
Working Temperature| 0 – 40°C
Output features
Output Voltage| 0-30V| 0-30V| 0-60V
Output Current| 0-5A| 0-10 A| 0-5A
Voltage Regulation
Regulation Rate| ≤ 5 0.03% + 5 my
Load Regulation rate| ≤ 0.33%
Ripple & Noise (peak to peak )| ≤ 50mV| ≤ 80 mV| ≤ 12Crn V
Current Regulation
Regulation Rate| ≤ 0.1% +1 mA
Load Regulation Rate| ≤ 0.2% + 5 mA
Ripple and Noise| ≤ 50mArms
Display| 4-Digit LED
Display Accuracy| ±0.6%±1| ±0.8% ± l| ±1% ±1
Safety features
Protection| Short Circuit, Overload ,
OverTemperature , OverVoltage
---|---
Approvals| CE EMC EN 61326 ; LVD : EN 61010
Package
Package Contents| 1 xDC Power Supply ;1 x Power Cord ;
1x Use Manual ; 1 x Test Lead
---|---
Dimension| 226 82 138 mm
Weight| ≤ 1.5kg| ≤ 1.7 kg| ≤ 1.8kg
Operation Instruction
Step 1. Presetting Constant Current Value.
a. Turn on the power supply, and adjust the output voltage to about 3V by
turning the coarse 84/or fine Voltage knobs.
b. Turn off the device. c. Short the positive “+”and negative “-” terminals
using the leads. Then turn on the power supply.
d. Adjust the current to the desired amps by turning the coarse or fine
Current knobs. Then remove the test lead.
Please do not adjust the Current knobs once the current limit has been set as
above. Current limiting has now been set for the whole range of output
voltages.
Step 2. Presetting Constant Voltage Value.
a. Adjust the output voltage by turning the coarse or fine Voltage knobs. b.
Turn off the device.
Please do not adjust the voltage knobs once the voltage has been set as above.
Step 3. Now connect your load: positive to positive and negative to
negative.
Note: If the display shows (CC), either your preset current limiting
value is too low or your load requires more voltage or current. You need to
adjust your current and voltage settings using the above steps.
About CC &CV
The power supply functions as a constant voltage source (CV) as long as the
load current is less than the preset current limiting value. If the load
current becomes equal to or greater than the preset current limit, the power
supply will automatically cross over to the constant current mode and the
voltage will drop. (CC) will display on the LED panel indicating the supply is
now operating as a constant current source.
If the load current drops below the preset current limit, the power supply
returns to constant voltage( CV) mode.
Frequently Asked Question (FAQ)
1. Q: When I power it on, the current displays show zero, is it normal?
A: If itisn‘t connected to a load it should read zero because no current is flowing. This DC power supply requires manual current and voltage settings.
2. Q: How do I get it to stay in constant current mode?
A: CC is attained when the rated set current is exceeded. It would stay in that mode till the current drops back to the preset.
3. Q:How to set the current value without load connecting?
A: Please short the +/- outputs together, set the current, and remove shorting cable. You could also refer to the operation instruction.
4. Q: Does it remember the last settings when turned off and back on again?
A: Yes, because it's on a dial. If you don't adjust it and just flip the on and off switch in the front it will remain the same.
5. Q:How to switch between Constant Voltage (CV) and Constant Current (CC)?
A:The supply will do it automatically. Turn the current down or up to adjust the limit. When the mode CC shifts to CV, the CV indicator light turns on. You can adjust it to any value. It automatically switches to CC when the set current value is exceeded.
About Us
NAWElez is a leading manufacturer for various DC regulated power supply in
Shenzhen China. As an integrated high-tech enterprise including design,
development, production, sales and services, OEM & ODM are welcome.
NAWEls2’s products comply with RoHS, CE and FCC certificates Our professional
team has over 10 years of experience in design, manufacturing, selling of DC
power supply, We are passionately committed to bring alternate power solutions
to the customers that makes their DIY project smooth and efficient. We bring
our products to market domestically across over 20 provinces in China, as well
as intemationally market such as Europe, North America , Austria, Asia and so
on.
With perfect quality, enthusiastic services, timely supply, thoughtful pre-
eale after-cales services provided, we cooperate with customers all over the
world , and win a good reputation among customers.
Please contact NAWEIsz team below ways for warranty service or support needed:
Tel: +86-755-23316973
E-mail: navitechsz@163.com
Add: 207, Building office
Cheng nan Road , Wuxi , dangsu
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