uxcell SFM-27 DC 3-24V 100dB Active Electronic Buzzer Instruction Manual

1. Kupu Whakataki

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. Hua Neke Atuview

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.

Āhuatanga matua:

Whanui Voltage Awhe: Operates on DC 3V to 24V.
Putanga Oro Teitei: Produces a continuous sound at 100dB.
Waeaea ngawari: Equipped with black and red wires for straightforward connection.
Hanga Roa: Housed in a plastic casing.
Hoahoa Kiato: Suitable for integration into various systems.

Waehanga:

Electronic Buzzer Unit (SFM-27)
Red Wire (Positive Terminal)
Black Wire (Negative Terminal)
Mounting Holes (for secure installation)

uxcell SFM-27 Active Electronic Buzzer, front view with red and black wires

Whakaahua 2.1: Mua view of the uxcell SFM-27 Active Electronic Buzzer, showing the sound output grille and attached red and black power wires.

3. Whakatakotoranga

Tawhā	Uara
Ingoa Hua	Electronic Buzzer
Tauira No.	SFM-27
Sound-making Type	Oro Tonu
Whakatauhia Voltage	DC 3-24V
Whakatauhia o naianei	15mA
Pēhanga Oro	100dB
Te Waahi Mahi	-20°C ki te +45°C
Overall Size (LWH)	47 x 30 x 14mm / 1.85 x 1.14 x 0.55 inihi
Mounting Holes (L*W)	3.5 x 4mm / 0.14 x 0.16 inihi
Te Maunga Poka Tawhiti	39mm / 1.5 inihi
Waea Roa	11cm / 4.3 inihi
Auau Resonant	2.5 ± 0.5KHz
Rauemi o waho	Kirihou
Tae	Mā
Taumaha (ia waeine)	34g

uxcell SFM-27 Active Electronic Buzzer with dimensions labeled

Figure 3.1: Dimensions of the uxcell SFM-27 Active Electronic Buzzer, indicating mounting hole spacing and overall size.

4. Nga korero haumaru

Kia mau ki nga whakaritenga haumaru e whai ake nei hei aukati i te whara, i te kino ranei o te hua:

Voltage Hototahitanga: Whakaritehia te voltage is within the specified DC 3V-24V range. Applying incorrect voltage can damage the buzzer.
Polarity: 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.
Waea waea: All wiring should be performed by a qualified individual or with proper knowledge of electrical connections. Ensure connections are secure to prevent short circuits.
Taiao: Do not expose the buzzer to extreme temperatures, moisture, or corrosive environments beyond its operating specifications.
Taumata oro: The buzzer produces a loud sound (100dB). Avoid prolonged exposure to the sound at close range to prevent hearing discomfort.
Tamariki: Tiakina te taputapu kia kore e taea e nga tamariki.

5. Tatūnga me te Tāuta

Follow these steps to set up and install your electronic buzzer:

Whakaritea te Tauwāhi Whakapuru: 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.
Hono Hono:
- Identify the red wire and the black wire extending from the buzzer.
- Honoa te waea whero ki te pito pai (+) of your DC power supply (3V-24V).
- Honoa te waea pango ki te tōraro (-) kāpeka of your DC power supply.
- Ensure all connections are firm and insulated to prevent short circuits.
Taumahinga Whakamatau: Once wired, apply power to the circuit. The buzzer should emit a continuous sound. If it does not, refer to the Troubleshooting section.

6. Mahi

The uxcell SFM-27 Active Electronic Buzzer is designed for simple operation. It functions as a direct alarm device:

Ina he hiko DCtage 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. Tiaki

The uxcell SFM-27 Active Electronic Buzzer requires minimal maintenance:

Te horoi: Periodically wipe the exterior of the buzzer with a soft, dry cloth to remove dust. Do not use harsh chemicals or abrasive cleaners.
Tirotiro: Regularly check the wiring for any signs of damage, fraying, or loose connections. Ensure the mounting remains secure.
Taiao: Ensure the operating environment remains within the specified temperature and humidity ranges to prolong the life of the device.

8. Te Raru

If the buzzer does not function as expected, refer to the following troubleshooting guide:

Raruraru	Take pea	Rongoā
No sound from buzzer	Karekau he hiko hē voltage (outside 3V-24V) Polarity waea hē Ko nga hononga hee, he kino ranei Damaged buzzer unit	Verify power supply is active. Tirohia te hiko tuku voltagkei roto i te 3V-24V. Ensure red wire is connected to (+) and black to (-). Inspect all wire connections for security. If all above are correct, the buzzer may be faulty and require replacement.
He oro ngoikore, he oro mokowhiti ranei	Voltage too low (below 3V) Hononga wewete Partial damage to buzzer	Whakaritea voltage is within the optimal range (e.g., closer to 12V-24V for full loudness). Tirohia me te whakamau i nga hononga waea katoa. Consider replacing the buzzer if the issue persists.

9. Pūtāhui me te Tautoko

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

uxcell SFM-27