1 × Oscilloscope numérique DOS1102 2 × sondes passives (probablement commutables 1X/10X) 1 × Adaptateur secteur (alimenté en courant continu) 1 × câble de données USB 1 × Manuel d'utilisation (multilingue) 1 × Disque U (pour le transfert de données/logiciel) 1 × ligne d'étalonnage (si incluse) 1 × étui de transport ou mousse de protection (si fourni en kit pro)
Caractéristiques principales
Sortie CC 30 V/5 A avec affichage à 4 chiffres
Liste du matériel de sortie programmable
Technologie à double fréquence
Affichage de la puissance et de l'heure
6 ensembles de stockage rapide de paramètres
Interrupteur de déconnexion avant ON/OFF unique
Interface de communication USB arrière
Contrôle PC via logiciel
Sorties USB doubles 5 V/1,5 A
Délai de livraison
3-4 jours ouvrables
Découvrez l'alimentation numérique de laboratoire HANMATEK® HM305T, la solution idéale pour vos besoins en alimentation électrique, que ce soit pour un usage professionnel ou amateur. Compacte et précise, cette alimentation est parfaitement adaptée à de nombreuses applications. Son écran LED lumineux affiche clairement les niveaux de tension et de courant, facilitant ainsi la lecture et les réglages.
L'HM305T offre une large gamme de réglages de sortie. Avec une tension réglable jusqu'à 30 V et un courant jusqu'à 5 A, elle offre une grande polyvalence aux utilisateurs travaillant sur des projets complexes. Cette alimentation numérique de laboratoire vous garantit l'alimentation adéquate pour tous vos besoins, des tests de circuits simples aux montages électroniques les plus sophistiqués. Son format compact lui permet de se faire discrète sur votre établi, tout en offrant des performances robustes.
Conçue pour une sécurité optimale, l'alimentation HANMATEK® HM305T intègre une protection contre les surtensions et les surintensités. Cette protection prévient les dommages sur vos projets et vous assure une tranquillité d'esprit totale. Dotée de plusieurs bornes de sortie, elle se connecte facilement à divers composants, optimisant ainsi votre productivité.
Que vous soyez ingénieur, technicien ou amateur, l'alimentation HM305T est conçue pour répondre à vos besoins. Ses commandes intuitives permettent même aux débutants de l'utiliser facilement. La robustesse de cette alimentation numérique de laboratoire garantit une utilisation durable, ce qui en fait un investissement judicieux pour tous ceux qui prennent leur travail au sérieux.
En résumé, l'alimentation numérique de laboratoire HANMATEK® HM305T est le complément idéal de votre outillage. Fiable, précise et dotée de fonctionnalités avancées, elle prend en charge une large gamme d'applications. Découvrez dès aujourd'hui la fiabilité HANMATEK et optimisez vos projets grâce à des solutions d'alimentation exceptionnelles.
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.
Chez Hanmatek , nous nous engageons à fournir des produits de haute qualité et un service client exceptionnel. Votre satisfaction est notre priorité ; nous vous offrons la garantie et l'assistance suivantes :
Garantie de retour et de remboursement de 30 jours
Si, pour une raison quelconque, vous n'êtes pas entièrement satisfait de votre achat, nous vous offrons une garantie de retour et de remboursement de 30 jours . Veuillez consulter notre politique de remboursement pour plus de détails.
Garantie de 2 ans
Nous garantissons la qualité et la durabilité de nos produits. Bénéficiez d'une garantie de 2 ans sur votre produit Hanmatek acheté directement sur hanmatek.com . Cette garantie couvre tout défaut de fabrication et vous assure une tranquillité d'esprit totale lors de votre achat.
Assistance technique à vie
Notre engagement envers votre satisfaction va au-delà de la garantie. Bénéficiez d'une assistance technique à vie grâce à notre équipe de service client expérimentée. Nous sommes là pour vous aider pour toute question relative à nos produits, à leur configuration ou à leur dépannage.
Comment nous contacter
Si vous avez des questions ou des préoccupations, n'hésitez pas à nous contacter : support@hanmatek.com
24 heures pour garantir que vos questions soient traitées rapidement.
Merci d'avoir choisi Hanmatek® . Nous nous engageons à être votre partenaire de confiance pour des outils de qualité supérieure et un service exceptionnel.
Garantie de prix
Chez Hanmatek , nous nous engageons à offrir à nos clients le meilleur rapport qualité-prix possible. C'est pourquoi nous sommes fiers d'offrir une garantie de prix de 30 jours sur tous les produits achetés directement sur hanmatek.com . Cette politique est conçue pour vous offrir tranquillité d'esprit et confiance lors de vos achats chez nous, en vous assurant de toujours bénéficier du meilleur prix.
Qu'est-ce que la garantie de prix de 30 jours ?
Notre garantie de prix de 30 jours vous garantit que si le prix d'un article baisse dans les 30 jours suivant votre achat, vous pourrez être remboursé de la différence. Veuillez noter que cette garantie s'applique aux prix indiqués en USD. Nous n'offrons pas d'ajustement de prix en cas de fluctuations des taux de change dans d'autres devises.
Critères d'éligibilité
S'applique uniquement aux produits achetés sur hanmatek.com. Les achats auprès d'autres détaillants ou vendeurs tiers ne sont pas éligibles à cette garantie.
Délai : La baisse de prix doit intervenir dans les 30 jours suivant la date de votre achat initial.
Correspondance des produits : la garantie de prix s'applique exactement au même produit, y compris le modèle, les spécifications et l'état identiques.
Comment demander un remboursement pour différence de prix
Si vous constatez que le prix d'un produit que vous avez acheté a baissé au cours de la période de 30 jours, vous pouvez suivre ces étapes pour demander un remboursement de la différence de prix : Rassemblez votre documentation : Ayez à portée de main votre numéro de commande, ainsi qu'une preuve de la baisse de prix (comme une capture d'écran de la page produit affichant le prix inférieur).
Contactez-nous : Contactez notre service client par e-mail à l'adresse support@hanmatek.com . Veuillez indiquer votre numéro de commande, une capture d'écran de la baisse de prix et une brève description de votre demande.
Vérification : Notre équipe examinera votre demande et confirmera le changement de prix ainsi que les détails de votre commande.
Procédure de remboursement : Une fois votre demande vérifiée, nous procéderons au remboursement de la différence de prix sur votre mode de paiement initial. Le remboursement prend généralement entre 1 et 3 jours ouvrés.
Pourquoi acheter chez Hanmatek ? Nous nous engageons à vous offrir des produits haut de gamme et un service client irréprochable. La garantie de prix de 30 jours est l'une des nombreuses garanties que nous vous offrons pour un retour sur investissement optimal chez Hanmatek.
Pour toute question ou besoin d'aide, n'hésitez pas à nous contacter à l'adresse info@hanmatek.com. Nous sommes là pour vous aider !
Grâce à cette garantie, vous pouvez acheter en toute confiance, sachant que si le prix baisse, nous rectifierons la situation. Merci d'avoir choisi Hanmatek !
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.