Factory Seconds
Item: EX10021058
|Model: S-LS-28
Dual Power Supply - 2x 0-30 V, 0-5 A DC, 550 W
€249.00
Qty
Discount
Per item
3+
5%
€236.55
5+
10%
€224.10
10+
15%
€211.65
Key features
- High accuracy 10 mV / 1 mA
- DC voltage adjustment range: Channel I / II 0-30 V | Channel III 5 / 3.3 / 2.5 V
- Current adjustment range: Channel I / II 0 - 5 A | Channel III 3 A
- Parallel and series mode -- two outputs each for positive and negative current
- Four large LED displays for rapid monitoring of active output current and output voltage values
- Overheat protection -- temperature-controlled cooling fan / Digital controls -- fine adjustment of the current strength via a knob
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Delivery details
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Satisfying
With an incomparable quality-price ratio, this product that I recommend, has given me, so far, complete satisfaction.
Technical details
Type
TRANSFORMER
Colour
Black
Display
LED
Voltage [V]
230
Power [W]
550
Ammeter
Yes
Ripples
CV ≤ 2 Mvrms, CC ≤ 3 Mrms
Connector [mm]
4
Voltmeter
Yes
Protections
OTP
Resolution
10 mV / 1 mA
Rated current [A]
5
Voltage Range [V]
0 - 30
Line regulation
V: ≤ 0.01 % + 3 mV / A: ≤ 0.1 % + 3 mA
Load regulation
V: ≤ 0.01 % + 5 mV / A: ≤ 0.1 % + 10 mA
Storing humidity
＜70
Current stability
N
Display precision
3
Operating humidity [%]
＜70
Storage temperature [°C]
10-70
Current adjustment range [A]
CH I/II 0÷5, CH III 3
Working temperature range [°C]
0 - 40
DC voltage adjustment range [V]
CH I/II 0 - 30, CH III 5/3.3/2.5
Line regulation coefficient
CV ≤ 0.01 % + 3 mV, CC ≤ 0.1 % +3 mA
Temperature coefficient
≤150
Parameter setting accuracy (25°C ±5°C)
CH I/II ≤ 0.5 % + 20 mV; ≤ 0.5 % +10 mA / CH III: ±10 mV
Relative working and storage humidity [%]
< 80 %
Line regulation coefficient under load
CH I/II CV ≤ 0.01 % +5 mV; CC ≤ 0.1 % + 10 mA / CH III ±5 mV
Response time for voltage rise/decrease/current (at 10% load)
100 ms
Dimensions (LxWxH)
38 x 25 x 15 cm
Weight
10.58 kg
Shipping dimensions (LxWxH)
50 x 40 x 28 cm
Shipping weight
11.5 kg
Delivery package
- Dual power supply S-LS-28
- Power cable
- Instruction manual
Product Description
Dual Power Supply - 2x 0-30 V, 0-5 A DC, 550 W
The dual power supply S-LS-28 is specially designed to provide direct current to external devices, with individually-adjustable current and voltage. The power supply unit is designed for professional and industrial use in labs, the telecommunication sector, workshops with electronic devices and production facilities. Whether you're a professional in weather and environmental research or working on electrical projects around the house, the laboratory equipment from Stamos Soldering enriches your work.
This dual lab power supply allows you to easily choose between two different modes, parallel or series mode. In series mode, you can work with the double voltage of 60 volts, while parallel mode allows you to operate with only one channel at a doubled current of 10 amps. In this way, you can adjust the power of the power supply unit to suit your individual needs.
The power supply is equipped with three galvanically separated outputs each for positive and negative current, which enable an appropriate distribution of voltage and current to external devices. In addition, all outputs, and therefore multiple devices, can be used at the same time. The double benchtop power supply can thus be used as both a power source and a power sink.
Thanks to the four large LED displays, you can easily read the set voltage and amperage values at any time. The values are shown to the fourth digit on the LED screens, so that even the most accurate values can be represented. The glowing red numbers are easy to read even in low-light conditions. In addition, the values are shown with their corresponding unit acronyms, clearly distinguishing between current voltage and amperage. The dual power supply also has three LED diodes that indicate which voltage is turned on: 5 V, 3.3 V or 2.5 V.
A separate switch allows you to make further small adjustments to the current voltage for the adjustable channel III. This makes it possible to obtain different voltages of 2.5 V, 3.3 V or 5 V with the same channel selection. With this additional fine-tuning, the dual laboratory power supply can be operated in a more individual and more precise manner to provide the exact amount of power that you need.
This dual power supply unit meets the highest standards of safety: The device is equipped with special overheat protection which automatically activates an integrated fan as soon as the maximum temperature is exceeded. With this safety system, safe operation is guaranteed, even with intensive and ongoing use.
This power supply has special knobs that allow you to make both rough and fine individual adjustments to the desired current values, guaranteeing precision. During adjustment, you can observe the values in question on the large LED displays and easily modify them to meet your needs.
The dual power supply is made of sturdy sheet steel which guarantees high resilience and a long service life. Non-slip rubber feet ensure additional stability for the device while also protecting the work surface from unwanted scratches. The power supply is also made to be portable thanks to its light weight, and can also be used as a mobile unit. The dual power supply unit from Stamos Soldering is a thoroughly professional device for individually supplying direct current to various external tools and equipment.
Ratings & reviews
Ratings & reviews
4.8
Based on 14 reviews
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With an incomparable quality-price ratio, this product that I recommend, has given me, so far, complete satisfaction.
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Feel and quality appear high-quality. Works perfectly.
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Sturdy and well finished! It is a stabilized power supply with a very heavy transformer inside. This is my second experience purchasing Stamos products, fully satisfied.
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A linear power supply, solidly built, the first impression is really good!
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No comment provided.
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I can only agree with my predecessors. The device makes a good, robust impression. The operation is easy to learn. The enclosed instructions are rather confusing. The fan also runs (very quietly) without load. When the outputs are switched off, the target/ Maximum values are displayed. When the outputs are switched on, the device displays the actual actual values. If the setpoint/maximum values are changed, the display switches briefly. By selecting (pressing a button) the digit to be set, the setpoint can be changed very sensitively. Voltage +/ -10mV current +/- 1mAThere is also an overflow. Great! Well thought out and precise. Residual ripple is about 2mVI tried to locate the manufacturer (Stamos/Expondo). I found out that the device was probably manufactured by Korad (China).The S-LS-28 is probably identical to the KD3305D, which is a lot cheaper .Maybe someone has more information about it.But despite the price, I am very satisfied with the device. Recommendation!
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I'm amazed that the device has been checked for performance. The operation is intuitive enough for electric technicians! Power cut-off perfect. The third channel is also great. If you need something for the laboratory, definitely buy it.
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I can finally dispose of my older laboratory power supply. I left the device there for a day - then switched it on... What can I write, I'm thrilled. Great price-performance ratio. No fan noise. The operation is understood in just a few minutes. Then it was first checked and tested. With my resources I couldn't find any errors. Thanks to the expondo team
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Definitely functional and well made.
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Fast delivery, equipment received without transport damage. It remains to test the operation but everything seems fine.
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Frequently asked questions
Is this power supply digital or analogue?
The S-LS-28 power supply is digital.
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