Zavedení
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your DEKO MMA ARC 250A Inverter Welding Machine and MZ350T Auto-Darkening Welding Helmet. Please read these instructions carefully before use and retain them for future reference.
Bezpečnostní informace
VAROVÁNÍ: Svařování může být nebezpečné. Vždy dodržujte bezpečnostní opatření, abyste předešli zranění nebo smrti.
- Elektrický šok: Může způsobit smrt. Nedotýkejte se elektrických částí pod napětím. Používejte suché svářečské rukavice a ochranný oděv. Ujistěte se, že je svářečka řádně uzemněna.
- Výpary a plyny: Může být nebezpečné pro vaše zdraví. Chraňte hlavu před výpary. K odstranění výparů a plynů z dýchací zóny použijte větrání nebo odsávání.
- Obloukové paprsky: Can burn eyes and skin. Wear a welding helmet with a proper shade filter to protect your eyes and face. Wear appropriate protective clothing to protect your skin.
- Požár a výbuch: Jiskry ze svařování a horký kov mohou způsobit požár. Udržujte hořlavé materiály mimo dosah svařovacího prostoru. Mějte po ruce hasicí přístroj.
- Hluk: Can damage hearing. Wear ear protection.
- Always ensure the work area is clean, dry, and well-ventilated.
- Disconnect power before servicing or moving the welding machine.
Konec produktuview - DEKO MMA ARC 250A Welding Machine
Součásti předního panelu

Image: Front panel of the DEKO MMA ARC 250A welding machine, showing the power indicator light, overheating indicator light, current meter, welding current adjustment knob, positive output terminal, and negative output terminal.
- Kontrolka napájení: Svítí, když je stroj zapnutý.
- Overheating Indicator Light: Rozsvítí se, pokud se stroj přehřeje, což signalizuje potřebu ochlazení.
- Aktuální měřič: Displays the current welding ampvymazat.
- Knoflík pro nastavení svařovacího proudu: Používá se k nastavení požadovaného svařovacího proudu (ampvymazat).
- Positive Output Terminal (+): Connects to the earth clamp.
- Negative Output Terminal (-): Connects to the electrode holder.
Komponenty zadního panelu

Image: Rear panel of the DEKO MMA ARC 250A welding machine, showing the power switch, power input, and rear vent.
- Vypínač: Turns the welding machine ON or OFF.
- Příkon: Connects the machine to the main power supply (AC 1~220V).
- Rear Vent: Provides cooling for the internal components. Ensure it is not obstructed.
Konec produktuview - DEKO MZ350T Auto-Darkening Welding Helmet
Helmet Components

Image: DEKO MZ350T Auto-Darkening Welding Helmet, highlighting the solar battery panel, headgear tightness knob, arc sensor, inner filter, and dark shade knob.
- Solar Battery Panel: Powers the auto-darkening filter and charges the internal battery.
- Headgear Tightness Knob: Adjusts the fit of the helmet headgear for comfort and stability.
- Obloukový senzor: Detects the welding arc and triggers the auto-darkening function.
- Inner Filter: The auto-darkening lens assembly.
- Dark Shade Knob: Adjusts the dark shade level (DIN 9-13) for different welding processes and amperages.
Lens Display and Controls

Image: Close-up of the DEKO MZ350T Auto-Darkening Welding Helmet lens display, showing the replaceable lithium battery (CR2032), delay control, and sensitivity control.
- Replaceable Lithium Battery (CR2032): Provides backup power for the auto-darkening filter.
- Ovládání zpoždění: Adjusts the time it takes for the lens to return to its light state after welding stops.
- Ovládání citlivosti: Adjusts the sensitivity of the arc sensors to detect the welding arc.
Nastavení
Welding Machine Setup
- Umístění: Place the welding machine on a stable, level surface in a well-ventilated area, away from flammable materials. Ensure the rear vent is unobstructed.
- Připojte zem Clamp: Připojte zemnící třamp cable to the positive output terminal (+) on the front panel. Securely attach the earth clamp k obrobku nebo svařovacímu stolu a zajistěte tak dobrý elektrický kontakt.
- Připojení držáku elektrody: Connect the electrode holder cable to the negative output terminal (-) on the front panel. Insert the welding electrode into the electrode holder.
- Připojení napájení: Ensure the power switch on the rear panel is in the OFF position. Connect the power input cable to a suitable AC 1~220V power outlet.
Welding Helmet Setup
- Nastavení hlavového dílu: Fit the helmet on your head and adjust the headgear tightness knob for a comfortable and secure fit. Ensure the helmet sits evenly and the viewing area is aligned with your eyes.
- Zkontrolujte baterii: Verify the internal CR2032 battery is installed and functional. The solar panel will help maintain the charge.
- Set Shade Level: Adjust the dark shade knob to the appropriate DIN level (9-13) for your welding application. Refer to welding safety standards for recommended shade levels.
- Set Sensitivity and Delay: Adjust the sensitivity control to ensure the arc sensors reliably detect the welding arc. Adjust the delay control to your preference for the lens to return to its light state.
Návod k obsluze
Welding Machine Operation
- Zapnutí: Turn the power switch on the rear panel to the ON position. The power indicator light on the front panel should illuminate.
- Nastavený svařovací proud: Use the welding current adjustment knob to set the desired amperage. The current meter will display the selected value.
- Začněte svařovat: With the helmet on and properly adjusted, strike an arc with the electrode. The helmet lens will automatically darken.
- Monitor Overheating: If the overheating indicator light illuminates, stop welding immediately and allow the machine to cool down. Do not turn off the machine, as the fan needs to operate for cooling.
- Vypnout: After completing your work, turn the power switch to the OFF position and disconnect the machine from the power supply.
Welding Helmet Operation
- Předběžná kontrola: Before each use, ensure the helmet is clean and free from damage. Check that the lens is clear and the sensors are unobstructed.
- Funkce automatického ztmavení: When an arc is struck, the arc sensors will detect the light, and the lens will automatically darken within 1/15000 seconds to the preset shade level.
- Return to Light State: After the arc is extinguished, the lens will return to its light state after the set delay time.

Image: A person demonstrating welding while wearing the DEKO auto-darkening welding helmet, illustrating the helmet's use during operation.
Údržba
Welding Machine Maintenance
- Čištění: Regularly clean the machine's exterior with a dry, soft cloth. Use compressed air to blow out dust from the vents and internal components periodically. Ensure the machine is disconnected from power before cleaning.
- Kontrola kabelů: Inspect welding cables, electrode holder, and earth clamp for damage, fraying, or loose connections before each use. Replace damaged components immediately.
- Skladování: Pokud svářečku nepoužíváte, skladujte ji v suchém a bezprašném prostředí.
Welding Helmet Maintenance
- Čištění objektivu: Clean the outer and inner protective lenses regularly with a soft, clean cloth and a mild cleaning solution. Do not use abrasive cleaners.
- Výměna baterie: If the auto-darkening function becomes unreliable, replace the CR2032 lithium battery. Refer to the lens display image for battery location.
- Protective Lens Replacement: Replace scratched or damaged outer and inner protective lenses to maintain clear vision and protection.
- Čištění senzoru: Keep the arc sensors clean and free from obstructions to ensure proper auto-darkening function.
Odstraňování problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Welding machine does not power on. | Žádné napájení; Vypnutý vypínač; Vadný napájecí kabel. | Check power outlet; Ensure power switch is ON; Inspect and replace power cable if damaged. |
| No welding arc or weak arc. | Chudá země clamp connection; Incorrect current setting; Damaged cables; Wet electrode. | Ensure good earth connection; Adjust current knob; Inspect cables; Use dry electrodes. |
| Overheating indicator light is on. | Machine overloaded; Insufficient ventilation. | Allow machine to cool down (do not turn off); Ensure vents are clear and work in a well-ventilated area. |
| Welding helmet does not darken. | Low battery; Obstructed arc sensors; Incorrect sensitivity setting; Damaged lens. | Replace CR2032 battery; Clean arc sensors; Adjust sensitivity control; Replace lens if damaged. |
| Helmet lens flickers or stays dark. | Low battery; Incorrect sensitivity/delay settings; External light interference. | Replace battery; Adjust sensitivity/delay; Ensure no strong light sources interfere with sensors. |
Specifikace
DEKO MMA ARC 250A Welding Machine (Model: DKA-250Y-EU)

Image: Detailed specifications table for the DEKO MMA ARC 250A welding machine.
| Parametr | Hodnota |
|---|---|
| Model | DKA-250Y-EU |
| Power Voltage | AC 1-230V±15% |
| Jmenovitá vstupní kapacita | 5.8 KVA |
| Účinnost | 85 % |
| Pracovní cyklus | 40 % |
| Stupeň izolace | F |
| Aktuální rozsah | 20-200A |
| Používání | Welding Task |
| Vstupní objemtage | 220V-240V |
| Naprázdno Voltage | 60V |
| Stupeň ochrany | IP21S |
| Rozměry | 28 cm * 12.5 cm * 23 cm |
| Vstupní výkon | 4.1 kW |
| Účiník | 0.93 |
| Průměr elektrody | 1.6-4.0 mm |
| Čistá hmotnost (NW) | 4.56 kg |
DEKO MZ350T Auto-Darkening Welding Helmet
- Viewoblast: 3.54" × 1.38" (90 mm × 35 mm)
- Spínací čas: 1/15000 sec (light to dark)
- Rozsah odstínů: DIN 9-13 (adjustable)
- Zdroj napájení: Solar-powered with replaceable CR2032 lithium battery
- Vlastnosti: True Color technology, Fast Auto-Darkening, Sensitivity Control, Delay Control, UV/IR Filter
- Materiál: PP Strong Material
Záruka a podpora
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact DEKO customer service. Keep your purchase receipt as proof of purchase.