The design of this sound level meter meets the measurement requirements of safety engineering, health, and industrial safety, and can control the quality of sound in various environments. This table complies with IEC651 type 2 and ANSI S1.4 type 2 standards
characteristic:
1. The accuracy is 1.4dB
2. Frequency range: between 31.5Hz and 8 kHz, range: 30dB to 130dB
3. 3-1/2 bit LCD display with a resolution of 0.1dB
4. Equipped with maximum value retention and data retention functions
5. Sound level frequency weighting: A-level frequency weighting and C-level frequency weighting
Technical Indicators:
应用标准 : IEC651 type 2, ANSI S1.4 type 2
Frequency range: 31.5Hz~8kHz
Range: 30~130dB
Sound level frequency weighting: Sound level frequency weighting
Microphone: 1/2-inch polarized condenser microphone
Calibration: Calibration at 1KHZ sine wave and 94dB signal
Display: LCD display
Display digits: 3-1/2 digits
分 辨 率 : 0.1dB
The highest number displayed is 0.5 seconds
Time weighting: rapid response (125mS), slow response (1 sec.)
Range: Low range: 30-100dB, high range: 60-130dB
Accuracy:+1.5dB (under 94dB, 1 kHz reference conditions)
Alarm function: When the input exceeds the range, it will display "OVER"
Maximum value maintained:
Automatic shutdown: After 15 minutes of no operation
Power supply: one 9V battery, 006P or IEC 6F22 or NEDA1604.
Battery life: Approximately 50 hours (alkaline battery)
Operating temperature: 0 to 40 ℃ (32 to 104oF)
Operating humidity: 10 to 90% RH
Storage temperature: -10 to 60 ℃ (14 to 140 oF)
Storage humidity: 10 to 75% RH
尺 寸 :210(L)X55(W)X32(H)mm
Weight: 230g (including battery)
Accessories:9V battery, instruction manual Color box, leather box