1. Uvod
This manual provides instructions for the proper installation, operation, and maintenance of the uxcell SFM-27 Active Electronic Buzzer. This device is designed to produce a continuous sound alarm when a DC voltage between 3V and 24V is applied. Please read this manual thoroughly before using the product to ensure safe and efficient operation.
2. Izdelek je končanview
The uxcell SFM-27 is an active electronic buzzer featuring a plastic housing and two pre-attached wires for easy connection. It is designed for various industrial and electronic applications where an audible alert is required.
Ključne značilnosti:
- Wide Voltage Domet: Operates on DC 3V to 24V.
- Visoka zvočna moč: Produces a continuous sound at 100dB.
- Enostavno ožičenje: Equipped with black and red wires for straightforward connection.
- Vzdržljiva konstrukcija: Housed in a plastic casing.
- Kompaktna zasnova: Suitable for integration into various systems.
Sestavine:
- Electronic Buzzer Unit (SFM-27)
- Red Wire (Positive Terminal)
- Black Wire (Negative Terminal)
- Mounting Holes (for secure installation)

Slika 2.1: Spredaj view of the uxcell SFM-27 Active Electronic Buzzer, showing the sound output grille and attached red and black power wires.
3. Specifikacije
| Parameter | Vrednost |
|---|---|
| Ime izdelka | Electronic Buzzer |
| Model št. | SFM-27 |
| Sound-making Type | Neprekinjen zvok |
| Nazivna voltage | DC 3-24V |
| Nazivni tok | 15mA |
| Zvočni tlak | 100 dB |
| Delovna temperatura | -20°C do +45°C |
| Overall Size (L*W*H) | 47 x 30 x 14 mm / 1.85 x 1.14 x 0.55 palca |
| Mounting Holes (L*W) | 3.5 x 4 mm / 0.14 x 0.16 palcev |
| Razdalja montažne luknje | 39 mm / 1.5 palca |
| Dolžina žice | 11 cm / 4.3 palcev |
| Resonančna frekvenca | 2.5 ± 0.5 KHz |
| Zunanji material | Plastika |
| barva | Bela |
| Teža (na enoto) | 34 g |

Figure 3.1: Dimensions of the uxcell SFM-27 Active Electronic Buzzer, indicating mounting hole spacing and overall size.
4. Varnostne informacije
Za preprečitev poškodb ali škode na izdelku upoštevajte naslednje varnostne ukrepe:
- voltage Združljivost: Prepričajte se, da je napajalnik voltage is within the specified DC 3V-24V range. Applying incorrect voltage can damage the buzzer.
- Polariteta: Connect the red wire to the positive (+) terminal and the black wire to the negative (-) terminal of the DC power source. Incorrect polarity will prevent the buzzer from functioning.
- Ožičenje: All wiring should be performed by a qualified individual or with proper knowledge of electrical connections. Ensure connections are secure to prevent short circuits.
- Okolje: Do not expose the buzzer to extreme temperatures, moisture, or corrosive environments beyond its operating specifications.
- Raven zvoka: The buzzer produces a loud sound (100dB). Avoid prolonged exposure to the sound at close range to prevent hearing discomfort.
- otroci: Napravo hranite izven dosega otrok.
5. Nastavitev in namestitev
Follow these steps to set up and install your electronic buzzer:
- Priprava mesta montaže: Choose a suitable location for the buzzer. The buzzer features two mounting holes with a distance of 39mm (1.5 inches) between them.
- Secure the Buzzer: Use appropriate screws (not included) to securely fasten the buzzer to your chosen surface through the mounting holes.
- Priključite napajanje:
- Identify the red wire and the black wire extending from the buzzer.
- Povežite rdeča žica do pozitivni (+) priključek of your DC power supply (3V-24V).
- Povežite črna žica do negativni (-) terminal of your DC power supply.
- Ensure all connections are firm and insulated to prevent short circuits.
- Testna funkcionalnost: Once wired, apply power to the circuit. The buzzer should emit a continuous sound. If it does not, refer to the Troubleshooting section.
6. Delovanje
The uxcell SFM-27 Active Electronic Buzzer is designed for simple operation. It functions as a direct alarm device:
- When a DC voltage within the 3V-24V range is applied to its terminals with correct polarity, the buzzer will immediately emit a continuous sound at approximately 100dB.
- The sound will cease when the power supply is disconnected or interrupted.
- This buzzer produces a continuous tone and does not have adjustable volume or tone patterns.
7. Vzdrževanje
The uxcell SFM-27 Active Electronic Buzzer requires minimal maintenance:
- Čiščenje: Periodically wipe the exterior of the buzzer with a soft, dry cloth to remove dust. Do not use harsh chemicals or abrasive cleaners.
- Pregled: Regularly check the wiring for any signs of damage, fraying, or loose connections. Ensure the mounting remains secure.
- Okolje: Za podaljšanje življenjske dobe naprave zagotovite, da delovno okolje ostane znotraj določenih temperaturnih in vlažnostnih območij.
8. Odpravljanje težav
If the buzzer does not function as expected, refer to the following troubleshooting guide:
| Težava | Možen vzrok | rešitev |
|---|---|---|
| No sound from buzzer |
|
|
| Šibek ali občasen zvok |
|
|
9. Garancija in podpora
For warranty information and customer support, please refer to the documentation provided at the time of purchase or contact your retailer. You may also visit the official uxcell brand store for additional product information and support resources.
uxcell Brand Store: https://www.amazon.com/stores/uxcell/page/9C5CFA37-6CB6-400F-AA4A-658A763458C5