1. Introducció
This manual provides comprehensive instructions for the operation and maintenance of the Sper Scientific 850015 Graphic Display Sound Meter. This precision instrument is designed for accurate sound level measurements and complies with industry standards ANSI S1.4 Type 2 and IEC 61672-1 Class 2.
The device features a clear graphic display, selectable A and C decibel frequency weighting scales, minimum/maximum value tracking, and adjustable fast or slow response times. It also includes AC and DC output capabilities for external recording or analysis.
Figure 1: Sper Scientific 850015 Graphic Display Sound Meter. This image shows the front view of the sound meter, highlighting its display and control buttons.
2. Contingut del paquet
En obrir el paquet, comproveu que tots els elements enumerats a continuació hi siguin presents i estiguin en bon estat:
- Sper Scientific 850015 Graphic Display Sound Meter
- Parabrisa
- Bateria de 9 V
- Manual d'instruccions (aquest document)
- Foam-lined Hard Shell Carrying Case
Figure 2: The Sper Scientific 850015 Sound Meter shown within its protective foam-lined hard shell carrying case, alongside the included 9V battery and instruction manual.
3. Configuració i instal·lació de la bateria
The Sper Scientific 850015 comes with a 9V battery included. Follow these steps to install or replace the battery:
- Localitzeu la tapa del compartiment de la bateria a la part posterior del dispositiu.
- Feu lliscar o desenganxeu la tapa per obrir el compartiment.
- Connecteu la pila de 9 V a la pinça, assegurant-vos de la polaritat correcta.
- Place the battery into the compartment and replace the cover, securing it firmly.
- Attach the windscreen to the microphone at the top of the meter. This helps reduce wind noise during measurements.
4. Instruccions de funcionament
Familiarize yourself with the device's controls and display before operation.
Figure 3: The Sper Scientific 850015 Sound Meter being held, demonstrating its ergonomic design and ease of use.
4.1. Encendre/apagar
- Premeu el botó Poder button (usually marked with "I" or a power symbol) to turn the meter on.
- Manteniu premut el botó Poder button for a few seconds to turn the meter off.
- The meter features an auto-power-off function to conserve battery life.
4.2. A/C Weighting Selection
- Premeu el botó A/C button to toggle between A-weighting and C-weighting.
- Ponderació A (dBA) is commonly used for environmental noise measurements and approximates the human ear's response.
- Ponderació C (dBC) provides a flatter response, suitable for measuring peak sound levels or noise from machinery.
4.3. Fast/Slow Response Time
- Premeu el botó RÀPID/LENT button to select the desired response time.
- RÀPID response (125 ms) is suitable for capturing rapidly changing noise levels.
- LENTA response (1 second) provides an averaged reading for more stable noise sources.
4.4. MIN/MAX Function
- Premeu el botó MIN / MAX button to activate the minimum/maximum hold function.
- The display will show the highest (MAX) or lowest (MIN) sound level recorded since the function was activated.
- Press the button again to cycle through MAX, MIN, and normal measurement modes.
4.5. Sortida de CA/CC
The meter provides AC and DC output jacks for connecting to external devices such as chart recorders, data loggers, or sound analysis equipment. Refer to the specifications section for output voltage detalls.
5. Manteniment i calibratge
5.1. Neteja
To ensure optimal performance and longevity, keep the meter clean. Wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the microphone is free from dust and debris.
5.2. Substitució de la bateria
When the low battery indicator appears on the display, replace the 9V battery as described in the "Setup and Battery Installation" section. Always dispose of used batteries responsibly.
5.3. Calibració
For applications requiring high accuracy or regulatory compliance, periodic calibration is recommended. The Sper Scientific 850015 can be calibrated in compliance with OSHA standards using an optional Acoustical Calibrator (Model 850016). A N.I.S.T. traceable certificate of calibration is also available from Sper Scientific.
6. Solució De Problemes
If you encounter issues with your Sper Scientific 850015, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s'encén. | Bateria morta o mal instal·lada. | Check battery installation; replace with a fresh 9V battery. |
| Inaccurate or fluctuating readings. | Microphone obstructed, strong wind, or meter needs calibration. | Ensure windscreen is properly installed and microphone is clear. Avoid strong air currents. Consider calibration if readings remain inconsistent. |
| Display shows "LO BAT". | La bateria és baixa. | Substitueix la pila de 9 V immediatament. |
| No response from buttons. | Device frozen or battery issue. | Remove and reinsert the battery to reset the device. If problem persists, replace battery. |
7. Especificacions
The following table details the technical specifications for the Sper Scientific 850015 Graphic Display Sound Meter:
| Paràmetre | Valor |
|---|---|
| Interval de mesura | 30 to 130 dB (A & C scales) |
| Resolució | 0.1 dB |
| Precisió | ±1.4 dB (ref 94 dB @ 1KHz) |
| Ponderació de freqüència | A i C |
| Temps de resposta | Fast (125 ms) / Slow (1 sec) |
| Sortida | AC i DC |
| Apagat automàtic | Sí |
| Indicador de bateria baixa | Sí |
| Compliment d'estàndards | ANSI S1.4 Type 2, IEC 61672-1 Class 2 |
| Dimensions | 10¼" × 2¼" × 1" (258 × 55 × 25 mm) |
| Pes | 6.5 oz (185 g) |
| Font d'alimentació | 1 bateria de 9 V (inclosa) |
Figure 4: A visual representation of key specifications for the Sper Scientific 850015, including range, resolution, and accuracy.
8. Garantia i Suport
For information regarding product warranty, technical support, or service, please contact Sper Scientific directly. Their official website or the contact information provided with your purchase documentation will have the most up-to-date details.
Fabricant: Sper Científic
Weblloc: Sper Scientific Store on Amazon (per a informació general del producte)
