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
3A
0.5A
FINE
-
+
POWER
VOLTAGE
5
Output port
9
Power switch
6
USB output
4
Current
3
Voltage
8
7
Pointer header
zero calibration
2
6
5
7
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: (+86)0755-23408704
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% r 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)
