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SL-406 噪音轉換器
特色
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測量範圍 : 35 ~ 80 , 50 ~ 100 , 80 ~ 130dB(分貝).
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輸出 : 1mV=1dB
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A/C加權網路測量選擇(dBA)
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響應頻率範圍 : 31.5 ~ 8000HZ
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精確度 : ±1.5dB (94dB/1KHz)
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符合國際規範IEC651Type2
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Size : 107 x 53 x 29mm.
FEATURES
► Cooperate with the DMM to be as a professional sound level meter.
► 35 to 130 dB, 3 ranges.
► Frequency weighting networks are designed to meet the IEC 61672 class 2.
► A weighting networks are conformity to standards.
► Fast Time weighting dynamic characteristic modes.
► Condenser microphone for high accuracy & long-term stability.
► Over/Under indicator.
► Low battery indicator.
► Frequency 31.5 Hz to 8,000 Hz. Electric condenser microphone. Size of microphone : 1/2 inch standard size.
規格
測量/範圍 (Measurement/Range)
- 30 to 130 dB, 3 ranges
Range 1 : 30 to 80 dB.
Range 2 : 50 to 100 dB.
Range 3 : 80 to 130 dB.
輸出 (Output )
- 10 mV per 1 dB.
精確度 (Accuracy )(23 5 ℃)
- Frequency weighting meet IEC 61672 class 2, calibrating input signal on 94 dB ( 31.5 Hz to 8 kHz ), then the accuracy of A weighting is specified as following :
31.5 Hz - ± 3.5 dB, 63 Hz - ± 2.5 dB, 125 Hz - ± 2.0 dB
250 Hz - ± 1.9 dB, 500 Hz - ± 1.9 dB, 1 kHz - ± 1.4 dB
2 kHz - ± 2.6 dB, 4 kHz - ± 3.6 dB, 8 kHz - ± 5.6 dB
頻率加權迴路 (Frequency Weighting Network )
- Characteristics of A weighting.
A weighting : The characteristic is simulated as "Human Ear Listing" response.
頻率 (Frequency )
- 31.5 Hz to 8,000 Hz.
校正器 (Calibrator )
- B & K (Bruel & Kjaer) : Multi-fuction acoustic calibrator, Model : 4226.
麥克風型態 (Microphone type)
- Electric condenser microphone.
麥克風大小 (Size of microphone)
- 1/2 inch standard size.
校正VR (Calibration VR)
- Build in external calibration VR.
電池 (Battery)
- DC 9 V battery (006P, 6F22).
電源消耗 (Power Consumption)
- Approx. DC 4 mA.
操作溫度 (Operating Temperature)
- 0 ℃ to 50 ℃ (32 ℉ to 122 ℉).
操作溼度(Operating Humidity)
- Less than 80% RH.
重量 (Weight)
- 150g g/0.33 LB (including battery).
體積(Dimension)
- Main instrument : 107 x 53 x 29 mm ( 4.2 x 2.1 x 1.1 inch ).
Probe : Dia. 12.7 mm x 58 mm ( Dia. 0.5 inch x 2.28 inch).
附件 (Accessories Included)
- Operation Manual........................................1 PC.
選購校正器及附件 (Optional Calibrator, Accessory)
- 94 dB Sound Calibrator, Model : SC-941.
94/114 dB Sound Calibrator, Model : SC-942.
Wind shield ball, Model : SB-01
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