ตัวสอบเทียบเสียงรุ่น ND9B สร้างแหล่งกำเนิดเสียงสำหรับการสอบเทียบอย่างรวดเร็วและง่ายดาย ให้ประสิทธิภาพที่แม่นยำและมีเสถียรภาพ IEC942, GB/T15173, และ ANSI S1.40 เหมาะสำหรับการใช้งานภาคสนามและห้องปฏิบัติการ
วิดิโอแนะนำการใช้งาน
Feature
- Sound Pressure Level: 94dB & 114dB.
- Accuracy: ±0.3dB (20°C, 760mm Hg)
- Frequency: 1000±0.01% Hz allows calibration with A,B,C or D weighting networks or linear
- Microphone Size: 1″ and 1/2″ microphones
- Temperature Coefficient: 0~0.01 dB/°C
- Operating Temperature: -10~50°C
- Storage Temperature: -40~65°C
ND9B Class I Sound meter calibrator for maintaining the accuracy of a sound level meter.
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
- Study shows sound has harmful impact on the activity of human
- Mainly caused by machines, transport and transportation systems.
- Designed to meet the measurement requirement of safety engineers
CLEAR DIGITAL DISPLAY
Digital display shows the chosen dB level clearly with Backlight. Avoid making careless mistakes comparing with traditional power
PORTABLE
Lightweight and small size. Handy sound source for quick and easy calibration of sound level meters and sound measuring systems.
What’s in the Box?
1 x Sound Level Calibrator 1 x English Manual
PROFESSIONAL
Conforms to IEC60942 (IEC942) class 1 standard. Accurate suitable for personal, field and laboratory use.
รายละเอียดสินค้า
| Model | ND9B |
|---|---|
| Standards | GB/T15173,ANSI S1.40 CLASS2,IEC942 |
| Sound Pressure Level | 94 dB |
| 114 dB | |
| Accuracy | 0.3 dB |
| Frequency | 1000Hz |
| Cailbration Of Microphones | 1’’,1/2’’ |
| Power Supply | 1x9V 6F22 Battery |
| Dimensions | 142x47x47 mm |
| Weight | 275g(Including Battery) |
| Standard Accessories | Main Unit |
| Windscreen | |
| Carrying Case (B04) | |
| Operation Manual | |
| Optional Accessories | ND9 Sound Level Meter Calibrator |
| RS-232C Data with Software | |
| Blue tooth Data Adapter with Software |
