Sound meters measure sound pressure levels both to check acoustic fidelity and to verify compliance with noise pollution regulations in health and safety codes. The meters are used in a range of environments, including homes, schools, airports, automotive and machine shops, concert halls, recording studios, and hospital.
ND9B Class I Sound meter calibrator for maintaining the accuracy of a sound level meter.
The Sould level calibrator is simple operation. With only 3 buttons: 94dB, 114dB and Power On/Off Button. Simply power on the calibrator, select 94dB or 114dB level, and it's ready to go!
Features:
- DIGITAL DISPLAY with backlight, Clearly shows the chosen dB level.
- Digital Display with Backlight, Clearly Shows the Chosen dB Level
- Compact and lightweight: Handy sound source calibrator for quick and easy calibration of sound level meters and sound measuring systems.
- PROFESSIONAL: Conforms to IEC60942 (IEC942) class 1 standard. Solid design provides accurate and reliable performance, suitable for personal, field and laboratory use.
- Sound level calibrator features with removable 1/2" Transducer Cap, Suitable for 1" and 1/2" Microphone Size
- SIMPLE & EASY OPERATION With only 3 buttons operation:(94dB, 114dB and Power On/Off Button). Simply power on the calibrator, select 94dB or 114dB level, and it's ready to go!
Specifications:
| Output Sound Level |
94db & 114db |
| Accuracy |
±0.3db (20°C, 760mm Hg) |
| Frequency |
1000±0.1%Hz (allows calibration with A, B, C or D weighting networks or linear) |
| Operating Temperature |
-10~50°C |
| Standard |
IEC60942 (IEC942) Class 1 |
| Design For |
1"and 1/2" microphones |
| Storage temperature |
-40~65°C (batteries removed) |
| Temperature coefficient |
0 to 0.01dB/°C |
| Altitude Effects |
Approximately 0.1dB decrease for every 2000 ft increase in altitude from the sea level to 12,000 feet elevation or comparable atmospheric pressure change (approx. every 50mm of Hg decrease) |
| Power Supply |
2 x 1.5V AAA (excluded) |
| Dimension |
137 x x51 x 51mm |
| Weight: |
Approx. 200g |
Set Includes:
1 x Sound Level Calibrator
1 x English Manual
Standard Package