| Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More |
|---|---|---|---|---|---|
| Price /Unit | $114.22 | $111.89 | $108.39 | $103.73 | Contact US |
ND9B Digital Sound Level Calibrator 114DB 94DB Perfect For Microphone Noise Decibel Measurement
Description:
This Sound Level Calibrator is small in size, light in weight, easy to carry. Although complex and advanced, it is convenient to use and operate. Its ruggedness will allow many years of use if proper operating techniques are followed.
Features:
- Simple & Easy Operation
- Digital Display with Backlight, Clearly Shows the Chosen dB Level
- Lightweight and Small Size
- Removable 1/2" Transducer Cap, Suitable for 1" and 1/2" Microphone Size
- Conforms to IEC60942 (IEC942) Class 1 Standard
- Solid Design Provides Accurate and Reliable Performance
- Suitable for Personal, Field and Laboratory use
Specifications:
- Sound Pressure Level: 94dB & 114dB (Based on 20µPa)
- Accuracy: ±0.3dB
- The frequency of the output sound level is 1000+0.1% Hz, so it can be corrected on A, B, C, D or linear frequency weighting
- Standard: ICE942 Class 1
- Application: diameter 12.7mm (1/2") and diameter 23.77mm (1") microphone and acoustic measuring instrument calibration
- Operating Temperature: -10℃ to 50℃
- Storage Temperature: -40℃ to 65℃
- Temperature Coefficient: 0 to 0.01 dB/℃
- Altitude Effects: For every 60m/196.9ft of sea level rise, the sound pressure decreases by 0.1dB
- Size: 137 x 51 x 51mm
- Net Weight: approx. 200g
Operation Steps:
1. Press switch button, you will hear a 1000Hz sound, press 114dB or 94dB button to select decibel parameter;
2. Turn on the power switch of sound level meter to be calibrated;
3. Carefully put a microphone into the sound cavity of the calibrator, make sure that the microphone is flat and that the sealing rubber ring seals and supports the microphone well;
4. After the calibration is complete, carefully remove the microphone. At the same time, press the power button to turn off the calibrator.
Package Included:
- 1 x Set of Sound Level Calibrator
Note:
- It is powered by 2pcs 1.5V AAA batteries which are not included.
