THÔNG SỐ KỸ THUẬT MÁY ĐO ĐỘ ỒN ÂM THANH LUTRON SL-4001 (35~130 dB)

*** Các sản phẩm tương đương cùng dòng:
| Specifications Digital sound level meter | |||||||||||||||||||||
| Display: | 18 mm LCD, 3 1/2 digits | ||||||||||||||||||||
| Function: |
dB (A & C frequency weighting) Time weighting (Fast=200ms / Slow=500ms) Max. hold, AC output, DC output | ||||||||||||||||||||
| Measurement range: | 3 ranges: 35 to 130 dB (typical 30 to 130 dB), input signal only | ||||||||||||||||||||
| Resolution: | 0.1 dB | ||||||||||||||||||||
| Accuracy (23 ± 5°C): |
Frequency weighting meet IEC 651 type 2, calibrating input signal on 94 dB (31.5 Hz to 8 kHz), then the accuracy of A weighting is specified as following:
|
||||||||||||||||||||
| Frequency weighting network: |
A weighting: The characteristic is simulated as “Human Ear Listing” response. Typical, if making the environmental sound level measurement, always select to A weighting. C weighting: The characteristic is near the “Flat” response. Typical, it is suitable for checking the noise of machinery (Q.C. check) & knowing the sound pressure level of the tested equipment. |
||||||||||||||||||||
| Frequency: | 31.5 Hz to 8,000 Hz | ||||||||||||||||||||
| Calibrator: | B & K (Bruel & k multi-function acoustic calibrator, model: 4226) | ||||||||||||||||||||
| Microphone: | electric condenser microphone | ||||||||||||||||||||
| Size of microphone: | 1/2 inch standard size | ||||||||||||||||||||
| Range selector: |
30 to 80 dB 50 to 100 dB 80 to 130 dB 50 dB on each step, with over & under range indicating |
||||||||||||||||||||
| Time weighting: (Fast & Slow) |
Fast: t=200 ms (“Fast” range is simulated the human ear response time weighting) Slow: t=500 ms (“Slow” range is easy to get the average values of vibration sound level) |
||||||||||||||||||||
| Out terminal: | 3.5 phone output terminal is provided for connection with analyzer, level recorder, tape recorder | ||||||||||||||||||||
| Output signal: |
AC output – AC 0.5 Vrms corresponding to each range step DC output – DC 0.3 to 1.3VDC; 10 mV per dB Output impedance: 600 Ohm |
||||||||||||||||||||
| Calibration: | Built-in external calibration VR, easy to calibrate by external screw driver Internal oscillation system, 1 kHz sine wave generator | ||||||||||||||||||||
| Operating temp.: | 0°C to 50°C (32°F to 122°F) | ||||||||||||||||||||
| Operating humidity: | max. 90% RH (0 to 35°C) | ||||||||||||||||||||
| Power supply: | 006P DC 9V battery (heavy duty type) | ||||||||||||||||||||
| Power consumption: | approx. DC 6 mA | ||||||||||||||||||||
| Dimension: | 205 x 80 x 35 mm (8.1 x 3.2 x 1.4 inch) | ||||||||||||||||||||
| Weight: | 250 gr. including battery | ||||||||||||||||||||
MÔ TẢ MÁY ĐO ĐỘ ỒN ÂM THANH LUTRON SL-4001 (35~130 dB)
ỨNG DỤNG MÁY ĐO ĐỘ ỒN ÂM THANH LUTRON SL-4001 (35~130 dB)
MUA MÁY ĐO ĐỘ ỒN ÂM THANH LUTRON SL-4001 (35~130 dB) tại shopdoluong.com để được tư vấn và hỗ trợ giao hàng.
CATALOG :












Đánh giá
Chưa có đánh giá nào.