Sarrera
The Voltcraft SL-451 is a digital sound level meter designed for precise noise measurement and data logging. This device complies with IEC 61672-1 Class 2 standards, making it suitable for various professional applications. It features a robust housing with injected rubber protection, ensuring durability in challenging environments. The integrated data logger can store up to 32,000 measurements, which can be transferred to a PC via a USB interface for detailed analysis using the included software. An extendable microphone cable allows for flexible measurement in hard-to-reach areas.
Segurtasun-argibideak
Please read these safety instructions carefully before operating the device to ensure safe and proper use.
- Ez jarri gailua tenperatura altuen, eguzki-argiaren eraginpean edo hezetasun handiaren eraginpean.
- Avoid strong vibrations or mechanical shocks.
- Do not open the device housing; refer servicing to qualified personnel.
- Erabili zehaztutako elikatze-iturria eta osagarriak soilik.
- Mantendu gailua haurren eskura.
- Ensure the microphone is clean and free from obstructions for accurate readings.
Paketearen edukia
Egiaztatu elementu guztiak bertan daudela paketea desegiten duzunean:
- Voltcraft SL-451 Digital Sound Level Meter
- Microphone extension cable (3 meters)
- USB kablea
- PCko softwarearen CDa
- Potentzia-egokigailua
- Maleta eramatea
- Erabiltzailearen eskuliburua

Gailua amaitu daview
Familiarize yourself with the main components of the SL-451.

- Mikrofonoa: For sound detection.
- LCD pantaila: Shows measurement values, settings, and status indicators.
- Kontrol-botoiak: For power, mode selection, data hold, and other functions.
- USB ataka: For PC connection and data transfer.
- Potentzia sarrera: Kanpoko elikatze-iturrirako.
- Bateriaren konpartimendua: For battery installation.
Konfigurazioa
1. Gailua piztea
The SL-451 can be powered by batteries or an external power adapter.
Bateriaren instalazioa:
- Ireki bateriaren konpartimentuaren estalkia gailuaren atzealdean.
- Sartu beharrezko bateriak, polaritate zuzena errespetatuz.
- Itxi bateriaren konpartimenduaren estalkia ondo.
Kanpoko potentzia:
Connect the provided power adapter to the device's power input and then to a suitable power outlet.
2. Mikrofonoaren konexioa
The device comes with a detachable microphone and an extension cable.
- For direct use, ensure the microphone is securely attached to the main unit.
- For remote measurements, connect the microphone to one end of the 3-meter extension cable and the other end of the cable to the device's microphone input.
- Always use the foam windscreen on the microphone to minimize wind noise interference.
3. Software Installation (for Data Logging)
To utilize the data logging and analysis features, install the provided PC software.
- Insert the software CD into your computer's CD/DVD drive.
- Jarraitu pantailako argibideei softwarea instalatzeko.
- After installation, connect the SL-451 to your computer using the supplied USB cable.
- The software should automatically detect the device. If not, refer to the software's help documentation for troubleshooting connection issues.
Funtzionamendu-argibideak
1. Oinarrizko neurketa
- Sakatu BOTEREA botoia gailua pizteko.
- The display will show the current sound level in decibels (dB).
- Weighting (A/C): Erabili A/C button to switch between A-weighting (for general noise measurement, mimicking human ear response) and C-weighting (for measuring peak sound pressure levels).
- Response Time (FAST/SLOW): Erabili AZKAR/MOTSO button to select the desired response time. Fast response is suitable for rapidly changing noise, while slow response is for more stable noise levels.
- Barrutia hautatzea: The device features an automatic range selection from 30 to 130 dB. Manual range adjustment may also be available depending on the model's specific firmware.
- MAX/MIN Hold: Sakatu MAX/MIN button to display the maximum or minimum sound level recorded during a measurement session. Press again to cycle through modes or exit.
- Datuak gordetzea: Sakatu EUTSI botoia pantailan uneko irakurketa izozteko. Sakatu berriro askatzeko.
2. Datuen erregistroa
The SL-451 can record up to 32,000 measurements.
- Ziurtatu gailua piztuta dagoela.
- Sakatu REC button to start data logging. The "REC" indicator will appear on the display.
- Sakatu REC botoia berriro erregistratzeari uzteko.
- To retrieve logged data, connect the device to a PC using the USB cable and open the installed software.
- Follow the software instructions to download, view, and analyze the recorded measurements. The software supports analysis according to standards like DIN 15905-5.
3. Kalibrazioa
For accurate measurements, periodic calibration is recommended. The device is calibratable.
- Use a standard sound calibrator (e.g., Voltcraft SLC-100, if available) to perform calibration.
- Refer to the specific instructions provided with your calibrator and the SL-451's detailed manual for the calibration procedure.
- Incorrect calibration can lead to inaccurate readings.
Mantentzea
Garbiketa:
- Garbitu gailua zapi leun eta lehor batekin.
- Ez erabili garbitzaile edo disolbatzaile urratzailerik.
- Keep the microphone clean and free of dust or debris.
Biltegiratzea:
- Denbora luzez erabiltzen ez duzunean, kendu bateriak isuriak saihesteko.
- Store the device in its carrying case in a cool, dry place.
Bateria ordezkatzea:
Replace batteries when the low battery indicator appears on the display to ensure continuous operation and accurate readings.
Arazoak konpontzea
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Gailua ez da pizten. | Low or dead batteries; incorrect battery polarity; power adapter not connected. | Replace batteries; check battery polarity; ensure power adapter is securely connected. |
| Irakurketa okerrak. | Microphone obstructed; device not calibrated; incorrect weighting/response time. | Clean microphone; perform calibration; check A/C weighting and FAST/SLOW settings. |
| Ezin da ordenagailura konektatu. | USB cable faulty; software not installed correctly; driver issues. | Try a different USB cable; reinstall software; check device manager for driver conflicts. |
| Datuen erregistroak ez du funtzionatzen. | Memory full; REC button not pressed correctly. | Download data to PC and clear device memory; ensure REC button is pressed until indicator appears. |
Zehaztapenak
| Eredua: | SL-451 |
| Neurketa-tartea: | 30 to 130 dB (A/C) |
| Zehaztasuna: | ± 1.4 dB |
| Maiztasun-tartea: | 31.5 Hz eta 8 kHz artean |
| Ponderazioa: | A eta C |
| Erantzun denbora: | Azkarra / Motela |
| Data Logger Capacity: | Gehienez 32,000 neurketa |
| Interfazea: | USBa |
| Betetzea: | IEC 61672-1 2 klasea |
| Neurriak (L x W x H): | 5 x 7.6 x 27.8 cm (1.97 x 2.99 x 10.94 hazbete) |
| Pisua: | 350 gramo (0.77 lb) |
| Materiala: | Rubber (exterior protection) |
| Ezaugarri bereziak: | Bargraph, Calibratable, Battery/Power supply operation, Min/Max memory, Backlight, Analog output. |
Bermea eta Laguntza
Voltcraft products are designed for reliability and performance. This device comes with a standard warranty as per local regulations. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official Voltcraft webgunea.
Ordezko piezen erabilgarritasuna: Spare parts are available for 1 year from the date of purchase.
For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact Voltcraft customer service or your authorized dealer. Contact information can typically be found on the manufacturer's webgunean edo zure produktuaren ontzian.