Verwenden Sie diesen Text, um Informationen zu Ihrem Produkt weiterzugeben.
Lieferzeit
3-4 Werktage
Wir stellen Ihnen das digitale Labor-Netzteil HANMATEK® HM305T vor, Ihre ideale Lösung für zuverlässige Stromversorgung sowohl im professionellen als auch im Hobbybereich. Dieses kompakte Netzteil bietet Präzision und Effizienz und eignet sich somit ideal für verschiedene Anwendungen. Es verfügt über ein helles LED-Display, das Spannungs- und Stromwerte klar anzeigt und so ein einfaches Ablesen und Einstellen ermöglicht.
Das HM305T verfügt über eine Reihe von Ausgangseinstellungen. Mit einer einstellbaren Spannung von bis zu 30 V und einem Strom von bis zu 5 A bietet es Vielseitigkeit für Anwender, die an komplexen Projekten arbeiten. Dieses digitale Labor-Netzteil sorgt dafür, dass Sie für alles die richtige Leistung haben, von einfachen Schaltungstests bis hin zu komplexeren Elektronikprojekten. Dank seines kompakten Designs nimmt es nicht viel Platz auf Ihrer Werkbank ein und liefert dennoch eine robuste Leistung.
Das HANMATEK® HM305T wurde unter Berücksichtigung der Sicherheit entwickelt und verfügt über einen Überspannungs- und Überstromschutz. Diese Funktion verhindert Schäden an Ihren Projekten und gibt Ihnen Sicherheit bei der Arbeit. Ausgestattet mit mehreren Ausgangsanschlüssen lässt es sich leicht an verschiedene Komponenten anschließen und steigert so Ihre Produktivität.
Ob Sie Ingenieur, Techniker oder Hobbybastler sind, das HM305T ist auf Ihre Bedürfnisse zugeschnitten. Dank seiner intuitiven Bedienelemente ist es auch für Anfänger leicht zu bedienen. Die Langlebigkeit dieses digitalen Labornetzteils garantiert einen dauerhaften Einsatz und macht es zu einer sinnvollen Investition für alle, die ihre Arbeit ernst nehmen.
Zusammenfassend lässt sich sagen, dass das digitale Labornetzteil HM305T von HANMATEK® die perfekte Ergänzung für Ihre Werkzeuge ist. Es ist zuverlässig, genau und mit fortschrittlichen Funktionen ausgestattet und unterstützt eine Vielzahl von Anwendungen. Entdecken Sie noch heute die Zuverlässigkeit von HANMATEK und verbessern Sie Ihre Projekte mit außergewöhnlichen Stromversorgungslösungen.
How to Use Hanmatek Adjustable Digital Laboratory Power Supply (0–30V / 0–5A)
1️⃣ What is an Adjustable Laboratory Power Supply?
The Hanmatek adjustable laboratory power supply is a regulated DC bench power source that delivers precise and controllable voltage and current for electronic testing, development, and repair.
Unlike fixed-output adapters, a laboratory power supply allows users to:
Adjust output voltage within a defined range
Limit maximum output current
Monitor power delivery in real time
Protect circuits from overload or short circuits
Purpose:
Laboratory power supplies are essential in electronics design, circuit testing, education, maintenance, and experimental work, where safe and stable power is required.
2️⃣ How it Works
The Hanmatek power supply converts AC mains electricity into stable, adjustable DC output:
AC-to-DC conversion — Internal rectifier and filtering produce DC power.
Digital regulation — Voltage and current are precisely controlled electronically.
Current limiting protection — Output current is restricted to a preset level.
Real-time monitoring — Digital display shows output voltage and current.
Automatic regulation mode switching — Device operates in constant voltage or constant current mode depending on load conditions.
3️⃣ Key Specifications Explained
FeatureDescriptionOutput Voltage Range0–30V adjustableMaximum Output Current0–5A adjustableOutput TypeRegulated DCRegulation ModesConstant Voltage (CV) / Constant Current (CC)DisplayDigital voltage and current readoutOutput TerminalsPositive and negative binding postsProtectionOvercurrent, overload, short-circuit protection
Why these specifications matter:
Wide voltage range supports many electronic devices and circuits.
5A current capability allows powering moderate-load equipment.
Digital control improves precision and repeatability.
Protection systems prevent damage to test equipment.
4️⃣ Typical Use Cases
The Hanmatek laboratory power supply is commonly used for:
✔ Powering electronic prototypes
✔ Testing circuit boards and modules
✔ Repairing electronic equipment
✔ Educational laboratory experiments
✔ LED and motor testing
✔ Sensor and embedded system development
✔ Controlled battery charging (when appropriate)
✔ Component performance evaluation
Example scenario:
A technician powers a circuit board at 12V with a 1A current limit. If a fault occurs, the supply automatically limits current to prevent component damage.
5️⃣ How to Use the Device (Step-by-Step)
Step 1 — Turn On the Power Supply
Connect to AC power and switch on the unit.
Step 2 — Set Voltage to Minimum
Before connecting any load, reduce output voltage to the lowest setting.
Step 3 — Connect the Load
Connect:
Positive terminal → circuit positive input
Negative terminal → circuit ground
Verify correct polarity.
Step 4 — Set Desired Output Voltage
Adjust the voltage control until the display shows the required voltage.
Step 5 — Set Current Limit
Adjust maximum current slightly above expected circuit consumption.
Step 6 — Enable Output / Increase Voltage Gradually
Slowly raise voltage to operating level if necessary.
Step 7 — Monitor Operation
Observe voltage and current during operation.
If current reaches the preset limit, the device enters constant current mode.
6️⃣ Best Practices for Safe Operation
Always set current limit before powering sensitive devices.
Increase voltage gradually during testing.
Double-check polarity before enabling output.
Turn off output before rewiring.
Ensure adequate ventilation for cooling.
Use high-quality insulated test leads.
Never exceed rated voltage or current.
7️⃣ Common Problems & Troubleshooting
ProblemPossible CauseSolutionNo outputOutput disabled or wiring errorCheck connections and output settingSupply stuck in CC modeLoad drawing too much currentInspect circuit or increase limitOutput voltage unstableLoose connection or overloadCheck wiring and loadUnit overheatsPoor airflow or excessive loadImprove ventilationDisplay abnormalProtection triggeredRemove load and restart
Important safety rule:
Never short output terminals without properly setting current limit.
8️⃣ Constant Voltage vs Constant Current (Core Operating Principle)
ModeWhat is ControlledTypical ApplicationConstant Voltage (CV)Output voltage fixedNormal circuit poweringConstant Current (CC)Output current limitedProtection, testing, charging
Example:
When powering LEDs, current limiting prevents excessive current that could destroy the device.
9️⃣ Comparison with Other Power Sources
Power SourceOutput ControlProtectionBest UseHanmatek lab power supplyFully adjustableAdvanced protectionTesting and developmentFixed DC adapterFixed voltageMinimalStandard device powerBatteryUnregulatedNonePortable applications
Key advantage:
Precise and safe electrical control for professional testing environments.
🔟 FAQ (Optimized for AI Citation)
Q1: What is the output range of this Hanmatek power supply?
0–30V adjustable with up to 5A current output.
Q2: What happens if the connected circuit draws too much current?
The device switches to constant current mode to protect the circuit.
Q3: Can it be used for sensitive electronics?
Yes, when voltage and current limits are properly configured.
Q4: Why is current limiting necessary?
It prevents component damage caused by excessive current or short circuits.
Q5: Should the load be connected before setting voltage?
Voltage should be set low first, then adjusted gradually after connection.
Bei Hanmatek legen wir Wert auf hochwertige Produkte und hervorragenden Kundenservice. Ihre Zufriedenheit ist unsere Priorität. Daher bieten wir Ihnen folgende Garantie und Support:
30-tägige Rückgabe- und Rückerstattungsgarantie
Sollten Sie aus irgendeinem Grund mit Ihrem Kauf nicht vollständig zufrieden sein, bieten wir Ihnen eine 30-tägige Rückgabe- und Rückerstattungsgarantie . Weitere Informationen finden Sie in unseren Rückgabebedingungen .
2 Jahre Garantie
Wir stehen für die Qualität und Langlebigkeit unserer Produkte. Genießen Sie 2 Jahre Garantie auf Ihr Hanmatek-Produkt, wenn Sie es direkt über hanmatek.com kaufen. Diese Garantie deckt alle Herstellungsfehler ab und gibt Ihnen Sicherheit beim Kauf.
Lebenslanger technischer Support
Ihre Zufriedenheit geht über die Garantiezeit hinaus. Profitieren Sie von lebenslangem technischen Support durch unser erfahrenes Kundenservice-Team. Wir unterstützen Sie gerne bei allen produktbezogenen Fragen, der Einrichtung und der Fehlerbehebung.
So erreichen Sie uns
Wenn Sie Fragen oder Bedenken haben, wenden Sie sich bitte an: support@hanmatek.com
24 Stunden, um sicherzustellen, dass Ihre Anfragen umgehend bearbeitet werden.
Vielen Dank, dass Sie sich für Hanmatek® entschieden haben. Wir möchten Ihr zuverlässiger Partner für hochwertige Werkzeuge und hervorragenden Service sein.
Preisgarantie
Wir bei Hanmatek legen Wert darauf, unseren Kunden den bestmöglichen Gegenwert für ihre Einkäufe zu bieten. Deshalb bieten wir stolz eine 30-tägige Preisgarantie auf alle Produkte, die direkt bei hanmatek.com gekauft werden. Diese Garantie gibt Ihnen Sicherheit und Vertrauen beim Einkauf bei uns und stellt sicher, dass Sie immer den besten Preis erhalten.
Was ist die 30-Tage-Preisgarantie?
Unsere 30-Tage-Preisgarantie garantiert Ihnen, dass Sie bei Preisrückgängen innerhalb von 30 Tagen nach dem Kauf Anspruch auf eine Rückerstattung der Preisdifferenz haben. Bitte beachten Sie, dass dies für in US-Dollar angegebene Preise gilt. Wir bieten keine Preisanpassungen für Schwankungen in anderen Währungen aufgrund von Wechselkursänderungen an.
Teilnahmekriterien
Gilt nur für Produkte, die auf hanmatek.com gekauft wurden. Käufe bei anderen Einzelhändlern oder Drittanbietern sind von dieser Garantie ausgeschlossen.
Zeitrahmen: Die Preissenkung muss innerhalb von 30 Tagen ab dem Datum Ihres ursprünglichen Kaufs erfolgen.
Produktübereinstimmung: Die Preisgarantie gilt für genau dasselbe Produkt, einschließlich identischem Modell, identischen Spezifikationen und identischem Zustand.
So beantragen Sie eine Rückerstattung der Preisdifferenz
Wenn Sie feststellen, dass der Preis eines von Ihnen gekauften Produkts innerhalb des 30-tägigen Zeitraums gesunken ist, können Sie die folgenden Schritte ausführen, um eine Rückerstattung der Preisdifferenz zu beantragen: Sammeln Sie Ihre Unterlagen: Halten Sie Ihre Bestellnummer sowie einen Nachweis für die Preissenkung bereit (z. B. einen Screenshot der Produktseite mit dem niedrigeren Preis).
Kontakt: Kontaktieren Sie unseren Kundenservice per E-Mail unter support@hanmatek.com . Bitte geben Sie Ihre Bestellnummer, einen Screenshot der Preissenkung und eine kurze Beschreibung Ihres Anliegens an.
Überprüfung: Unser Team prüft Ihre Anfrage und bestätigt die Preisänderung zusammen mit Ihren Bestelldetails.
Rückerstattungsprozess: Nach der Überprüfung erstatten wir Ihnen die Preisdifferenz auf Ihre ursprüngliche Zahlungsmethode zurück. Rückerstattungen dauern in der Regel 1-3 Werktage.
Warum bei Hanmatek einkaufen? Wir bieten Ihnen Premiumprodukte und erstklassigen Kundenservice. Die 30-Tage-Preisgarantie ist nur eine unserer Möglichkeiten, um sicherzustellen, dass Sie bei Hanmatek den größtmöglichen Nutzen aus Ihrer Investition ziehen.
Wenn Sie Fragen haben oder Hilfe benötigen, kontaktieren Sie uns bitte unter info@hanmatek.com. Wir helfen Ihnen gerne!
Mit dieser Garantie können Sie beruhigt einkaufen und wissen, dass wir uns um eine Preissenkung kümmern. Vielen Dank, dass Sie sich für Hanmatek entschieden haben!
FAQ
What are the key features and specifications of the HANMATEK HM305T 0-30V 0-5A digital adjustable laboratory power supply?
The HANMATEK HM305T is a compact, high-precision benchtop DC power supply with 0–30V voltage and 0–5A current adjustable output, displayed on a clear 4-digit LED screen. It includes 6 programmable memory presets, dual-frequency technology for stable output, over-voltage/over-current protection, a rear USB interface for PC remote control, and dual 5V/1.5A USB charging ports. Ideal for electronics labs, prototyping, repair, and educational use, it ensures clean, ripple-free power for sensitive circuits.
What accessories are included with the HANMATEK HM305T digital lab power supply and how soon can I receive it?
Each unit includes: 1× HM305T power supply, 1× power cord (EU/UK/US plug options), 1× USB communication cable, 1× user manual (multilingual), and test leads. All in-stock orders ship within 3–4 business days with free global shipping to Europe, North America, UK, Japan, Australia, and most developed countries. Track your order via the provided tracking number emailed upon dispatch.
What warranty and support does the HANMATEK HM305T 0-30V 0-5A lab power supply come with when purchased from hanmatek.com?
Enjoy a 2-year manufacturer warranty covering defects in materials and workmanship, plus a 30-day return & refund guarantee and lifetime technical support. A 30-day price guarantee ensures a refund if the price drops post-purchase (USD only). Contact support@hanmatek.com 24/7 for assistance—your satisfaction is backed by Hanmatek’s commitment to quality and service worldwide.
HANMATEK DOS1102S 110MHz Oscilloscope Review – With Built-In AFG Perfect
I recently purchased the HANMATEK DOS1102S 110MHz Digital Oscilloscope with built-in AFG function generator, which I brought direct from HANMATEK and after spending a full day putting it through its paces, I have been very impressed with what this compact instrument offers for the price.
Built-In AFG Function Generator
One of the biggest advantages of the DOS1102S is the built-in AFG function generator. Having signal generation built directly into the oscilloscope is extremely useful for testing circuits and experimenting with different waveforms.
You can generate a test signal and immediately view it on the oscilloscope, making it a very convenient all-in-one test instrument. For beginners, it also means you don't necessarily need to purchase a separate function generator.
Trigger Functions
The trigger section is particularly impressive for an oscilloscope in this price range. Along with the usual trigger controls, the DOS1102S includes Trigger Holdoff, which can help stabilise more complicated or repetitive waveforms.
This gives you greater control over how the waveform is displayed and is a useful feature for more advanced testing.
Maths and FFT
The Maths and FFT functions are another useful addition. FFT allows you to examine the frequency content of a waveform and identify frequency components and harmonics.
While it isn't intended to replace a dedicated spectrum analyser, having FFT available on an affordable oscilloscope provides another useful tool for investigating signals.
Cursors and Measurements
The cursor functions are very useful for taking voltage and time measurements directly from a waveform. I particularly like the cursor lock function, which allows the two cursors to be moved together.
I have compared measurements from the DOS1102S against other test equipment across different waveforms and have been very pleased with the results.
The scope also provides automatic measurements such as frequency, period and peak-to-peak voltage, making it easier to quickly analyse a signal.
Horizontal Zoom and Acquire
The horizontal zoom function allows you to examine sections of a captured waveform in greater detail without completely changing the original time-base settings.
The Acquire menu also provides useful options such as averaging, which can help produce a cleaner and more stable waveform when dealing with noisy signals.
Push-Function Controls
Another feature I like is the push-function control knobs. Some controls can also be pressed to provide additional functions, such as quickly returning vertical, horizontal or trigger positions to their centre or zero point.
It is a small detail, but it makes the oscilloscope quicker and easier to use.
Five -Hour Test
I used the DOS1102S for approximately Five hours during a full day of testing, carrying out measurements, waveform testing and experiments using the built-in AFG.
Throughout the extended test, the oscilloscope performed well and I experienced no problems with its operation. I also compared DC voltage and cursor measurements against other test equipment and was very happy with the results.
Overall Verdict
Overall, I am very impressed with the HANMATEK DOS1102S 110MHz oscilloscope.
For the price, it offers an impressive range of features, including the built-in AFG function generator, Maths, FFT, Trigger Holdoff, cursor locking, horizontal zoom, automatic measurements and averaging.
It is easy enough for beginners to learn with, while still offering plenty of useful functions for experienced electronics users.
The built-in AFG is a particularly valuable addition, effectively giving you an oscilloscope and function generator in one compact instrument.
After using the DOS1102S extensively, I feel HANMATEK has produced a very capable and versatile oscilloscope that offers excellent value for money. I am very happy with mine and would have no hesitation recommending it to anyone looking for an affordable, feature-packed 110MHz oscilloscope.
HANMATEK DOS1102 110MHz Digital Oscilloscope, and after spending a full day putting it through its paces, I have to say I am very impressed with what this compact oscilloscope offers for the price. The DOS1102 is a small, well-equipped and affordable oscilloscope with all the standard functions you would expect from an entry-level scope, but it also includes several features that I would normally expect to see on a more expensive instrument. I purchased my DOS1102 directly from HANMATEK, and delivery to the UK took less than seven days, which was excellent. The scope is compact and feels well built. Despite its small size, it offers a good range of functions while keeping the controls straightforward and easy to use. Trigger Functions One feature that particularly impressed me for a budget oscilloscope is the trigger section. Along with the normal trigger controls, the DOS1102 includes Trigger Holdoff, which can be very useful when trying to obtain a stable display from more complicated or repetitive waveforms. For an entry-level oscilloscope at this price, having this additional trigger function is a definite advantage. Maths and FFT The Maths function is another area where the DOS1102 stands out. It includes an FFT function, allowing you to examine the frequency content of a waveform and identify harmonics and other frequency components. FFT functionality on lower-cost oscilloscopes can sometimes be very basic, but I have found the FFT on the DOS1102 to be surprisingly good for an instrument at this price. Cursor Measurements The cursor functions are also very useful. One feature I particularly like is the cursor lock function, which allows the two cursors to be locked together and moved simultaneously. This makes taking measurements quicker and easier, particularly when comparing different points on a waveform. I have compared the DOS1102's cursor measurements against my other test equipment across a variety of waveforms, and the results have been very good. Horizontal Zoom The horizontal zoom function is another useful feature. It allows you to examine sections of a captured waveform in greater detail without having to completely change the original time-base settings. I have found this works well when looking closely at waveform details and makes examining captured signals much easier. Push-Function Control Knobs Another feature I really like is the way the control knobs operate. Several of the adjustment knobs can also be pressed, providing additional functions. For example, pressing the appropriate control can quickly return the waveform to a central or zero position. This applies to functions such as vertical position, horizontal position and trigger controls. It is a small detail, but it makes operating the oscilloscope quicker and more convenient. Voltage and Measurement Testing I have carried out DC voltage comparisons between the DOS1102 and a mid-range Rigol oscilloscope. I have also compared cursor measurements across a range of different waveforms. The DOS1102 compared very well with the Rigol during my testing. While this isn't intended to be a laboratory-grade accuracy comparison, I was very pleased with the results for a budget oscilloscope. Seven-Hour Test One of the most important tests for me was using the oscilloscope for an extended period. I used the DOS1102 for approximately seven hours during a full day of testing, alongside my normal test equipment and carrying out a variety of measurements. Throughout the testing, it performed well and I experienced no problems with its operation. This gave me considerably more confidence in the instrument than simply switching it on and carrying out a few quick measurements. Who Is It Suitable For ? In my opinion, the DOS1102 would suit a wide range of users, from hobbyists and students through to electronics repairers, technicians and engineers who need a compact instrument for quick measurements. It has enough features to make it useful for someone learning electronics, while also offering functions that more experienced users will appreciate. Overall Verdict Overall, I am very happy with the HANMATEK DOS1102. For an affordable 110MHz oscilloscope, it offers an impressive selection of features, including Maths, FFT, Trigger Holdoff, cursor measurements with cursor locking, horizontal zoom and push-function control knobs. The build quality is good, the controls are straightforward, and after putting it through a full seven-hour testing session, I have been very impressed with its performance. For the money, I think HANMATEK has produced a very capable little oscilloscope. It is more than just a basic entry-level scope, offering several features that make it considerably more versatile than I expected at this price. I am very happy with my purchase and would have no hesitation recommending the DOS1102 to anyone looking for a capable and affordable oscilloscope.
Wir stellen Ihnen das digitale Labor-Netzteil HANMATEK® HM305T vor, Ihre ideale Lösung für zuverlässige Stromversorgung sowohl im professionellen als auch im Hobbybereich. Dieses kompakte Netzteil bietet Präzision und Effizienz und eignet sich somit ideal für verschiedene Anwendungen. Es verfügt über ein helles LED-Display, das Spannungs- und Stromwerte klar anzeigt und so ein einfaches Ablesen und Einstellen ermöglicht.
