Thiết bị hiệu chuẩn máy đo độ ồn Hangzhou Aihua AWA6221B Sound Level Calibrator
Specifications
PERFORMANCE SPECIFICATIONS
-
Normal sound pressure level: 94dB
- Normal frequency: 1000Hz
- Sound level accuration: ±0.3 dB(+23 ℃)
- Frequency accuration: ±2%±0.5 dB(-10 ℃+50 ℃)
- Distortion(THD): <1.5 %
POWER SUPPLY
- Power : Battery 1×6F22(9V)
- Nominal Operating Current: 20 mA
BATTERY CHECK
As long as the signal continues for one minute after the contact is release, otherwise battery low
ENVIRONMENT
- Operating Temperature: -10°C ~ +50°C
- Humidity: 25% ~ 90%(RH)
- Atmospheric Pressure: 65 kPa ~ 108 kPa
PHYSICAL
- Dimensions: diameter 40 mm × 100 mm
- Weight: <250 g (include battery)
- Microphone Type: 1" and 1/2" (with supplied adaptor)