Atten APS15-3A User manual

Product Introduction
APS series power supply is designed for the needs of electronic training
schools, communication maintenance technicians and related engineering
research and development personnel. The current best-stability series voltage
stabilization scheme is adopted for this product, and the digital MCU chip is
used for control. With very high stability and low ripple, simple operation and
control, and complete protection functions, it provide the user with convenient
and reliable high quality power supply.
Product Specification
Power input: refer to the voltage identification at the tail of the product (other
input voltage can be customized).
Rated value/dimensions/weight:
Model Voltage Regulation
Range
Current Regulation
Range Input Power Weight
APS15-3A 0-5V/0-15V 0-0.5A/0-3A 124VA 2.4Kg
Dimensions：(L) 215mm *(W) 88mm * (H)150mm
Technical Parameters
Constant Voltage mode (CV):
Output voltage range: 0 to rated voltage continuously adjustable.
Power supply variation rate: ≤ 0.01%+3mV.
Load variation rate: ≤ 0.01%+3mV (rated current ≤ 3A).
User Manual of APS15-3A
Maintenance Power Supply
Thank you for choosing our product. Please read this manual carefully before
using this product.
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Copyright Information
The design of this product (including internal software) and its accessories is
protected by national laws. Any infringement of our rights shall be subject to the
legal sanctions. When using this product, the user shall consciously abide by
the national laws.
Common Symbol Description
Thank you for use our product. Please read this manual carefully and pay
attention to the relevant warnings and notices mentioned in the manual before
using this product.
Warning
Notice
Noncompliance may cause death or serious injury to the user.
Noncompliance may cause injury to the user or substantial damage
to the object.
User Prerequisites
We request that the user should have common sense of life and the basic
electrical operating knowledge before using this product. The minor shall use
this product under the guidance of professionals or guardians.
[Notice]: To avoid damaging the machine and keep the operating
environment safe, please read this manual carefully and keep it properly
for future reference before using this product.
Safety Precautions
The user shall follow the following basic precautions to avoid electric shock or
personal injury or fire and other hazards when using this product.
To ensure personal safety, the user shall use the parts and accessories
recognized or recommended by ATTEN, otherwise it will cause serious
consequence!
Warning
Do not use this product near inflammables.
Before use, please ensure that the power line is earthed reliably to avoid
electric shock.
Do not use this product if the user is not under the guidance of relevant
personnel, inexperienced or has poor knowledge preparation.
Do not use this product in the humid environment or operate this product
with wet hands to prevent electric shock.
Do not change this product and its accessories without permission.
Please replace the product components with ATTEN original components.
Be sure to turn off the power switch when the user temporarily needs not
to use or stops using this product.
There is high voltage in the product. Do not disassemble the product
without permission from professionals.
Notice
Avoid using this power supply in the environment above 40℃. Reserve
enough space for heat emission holes on the rear panel to dissipate heat.
Confirm whether the current and voltage as well as the specification of
power line meet the requirements.
Before the device is connected to the power supply, please turn off the
power switch.
Do not refit this product and its accessories, which will cause the loss of
warranty qualification and the damage to the product.
Do not place heavy objects on the device.
Do not violently knock this product and its accessories in use,
which will damage the product.
Disclaimer
The company shall not be responsible for any personal injury or property loss
caused by user's failure to follow relevant instructions, natural disasters and
other force majeure, or individual behaviors and other non-quality problems in
the use process of this product.
This manual is sorted, compiled and issued by SHENZHEN ATTEN
TECHNOLOGY CO., LTD according to the latest product characteristics. The
company will make the subsequent changes to product and manual without
prior notice.
Protection function: overvoltage protection/overcurrent protection (cut-off
mode, delay start)/overheat protection.
Other functions: locking function, voltage coarse/fine adjustment, sound
function, 5V/15V voltage switching, 0.5A/3A current switching.
Cooling mode: temperature controlled fan, forced air cooling.
Operating environment: 0℃~40℃, <80% (indoor use).
Storage temperature and humidity: -10℃~70℃, <70%.
Packing list: host × 1, power line × 1, user manual × 1.

Operating Instructions
1. Precautions before use
AC power input: AC power input shall be within the range of rated voltage ±10%
50/60hz.
Warning: the protective conductor of the power line must be earthed to
avoid electric shock.
Instrument installation: Avoid using this power supply in the environment above
40℃. Reserve enough space for heat emission holes on the rear panel to
dissipate heat.
Notice: To avoid damage to the instrument, do not operate it in the
environment above 40℃.
2. Output voltage regulation
1. Turn on the power switch to make the product work normally.
2. Adjust the knob to the right to increase the output voltage value.
3. Adjust the knob to the left to reduce the output voltage value.
4. Press the adjusting knob forward to change fine/coarse adjustment status.
5. Conduct step adjustment at 0.01V in the in the fine adjustment state and 0.1V
in the fine adjustment state.
3. Output current regulation
1. When the current switch is switched to the position 0.5A, the host can provide
the current output capacity of 0.5A.
2. When the actual output current exceeds 0.6A at the position 0.5A, the power
supply will automatically conduct overrange protection. At this time, the power
supply will temporarily shut off the output for about 2S and make a buzzing
alarm to prompt the user to switch positions.
3. When the current switch is switched to the position 3A, the host can provide
the current output capacity of 3A.
4. When the actual output current exceeds 3.2A at the position 3A, the power
supply will automatically conduct overrun protection. At this time, the power
supply will temporarily shut off the output for about 2S and make a buzzing
alarm to prompt the user to remove the load.
Product Panel Diagram
① Voltage display
Main current
display
Adjusting knob
Fine tuning
/locking key
Front Panel Diagram
APS15-3A
15V
5V
3A0.5A FINE
-
+POWER
VOLTAGE
5 Output port 9Power switch
6USB output
4Current
3 Voltage
8
7
Pointer header
zero calibration
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Recovery time: ≤ 120 μs (50% load variation, minimum load of 0.5A).
Ripple and noise: ≤ 0.5mVrms (5Hz~1MHz) (rated current ≤ 1A).
Ripple and noise: ≤ 1.0mVrmss (5Hz~1MHz) (rated current >1A).
Temperature coefficient: ≤ 300ppm/℃
Read-back display:
The company will provide a warranty period of two years for the user since the date of
sale. The company will provide free maintenance service for the faults caused by quality
problems in the normal use within the warranty period.
The company will provide the product beyond the warranty period with lifelong
maintenance service.
The company will only provide the limited warranty service for the damage caused by the
user's improper use or arbitrary change to product components.
In case of product failure, please send the product to the designated maintenance point
for maintenance. Unauthorized maintenance points and personnel shall not maintain the
product.
Product Warranty
After-sales Service
After-sales service hotline: [phone]
For more contact information, visit the official website www.atten.com.cn.
After-sales Information
Display: double 3-bit LCD with blue background and white words (main
voltage and USB current display)
Accuracy: LCD header: ±(0.5% reading + 2 bits);
current pointer header: CLASS-2.5
USB interface parameters:
Voltage: fixed 5V output (±5% accuracy)
Current: maximum 2.1A (overcurrent protection, cut-off output)
4. Voltage range setting
1. When the voltage is switched to the position 5V, the host provides the
maximum limited voltage output of about 5.1V.
2. When the voltage is switched to the position 5V, the host provides the
maximum limited voltage output of about 15.5V.
5. Parameter locking operation
1. Under normal working conditions, long press the knob for about 3S to lock
the voltage output parameters.
2. In the locking state, the locking icon will be displayed on the LCD. At this
time, the adjusting knob is inactive.
3. Long press the knob again for about 3S to release the parameter locking.
At this time, the voltage can be adjusted normally.
6. Sound ON/OFF
1. Turn on the power switch to turn on/off the sound function while pressing the
knob.
2. When the sound function is turned off, the alarm sound will also be heard if
the current exceeds the range.
5V/2.1A
(5V/2.1A)