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特色
- 測量範圍 : 30dB ~ 130dB (分貝)
- 測量頻率範圍 : 31.5 ~ 8000Hz
- 精確度 : ±1.5dB (94dB/1KHz)
- 符合國際規範IEC61672 Class2
- 讀值鎖定功能
- A 加權網路測量(dBA)
- Size : 255 x 70 x 28mm.
FEATURES
- Large LCD display, easy to read.
- Charateristic of " A " frequency weighting network are designed to meet IEC 61672 class 2.
- " Fast " time weighting characteristic mode.
- Build in adj. VR is available for easy calibration.
- Condenser microphone for high accuracy & long-term stability.
- Hold function to freeze the display value.
- Warning indicator for over and under range.
- LCD display for low power consumption & clear read-out even in bright ambient light condition.
- Used the durable, long-lasting components, including a strong, light weight ABS-plastic housing case.
- Small and light weight design allow one hand operation.
- Low battery indicator.
- High quality with economical cost.
一般規格
顯示 (Display)
- 18mm (0.7") LCD (Liquid Crystal Display), 3 1/2 digits.
測量範圍 (Measurement Range)
- 35 to 130 dB, 3 ranges :
- range 1 - 35 to 80 dB
- range 2 - 50 to 100 dB
- range 3 - 80 to 130 dB
- Each range with warning indicator for over & under load.
解析度 (Resolution)
- 0.1 dB.
測量頻率 (Measurement Frequency)
- 31.5 Hz to 8,000 Hz.
頻率加權網路 (Frequency Weighting Network)
- Characteristics of " A " frequency weighting network.
- The " A weighting " characteristic is simulated as "Human Ear Listing" response.
快慢時間加權 Time weighting (Fast, Slow)
- Default to " Fast " time weighting characteristics
- Fast time weighting " is simulated the human ear response character.
精確度 (Accuracy) (23± 5 ℃)
- Characteristics of " A " frequency weighting network meet IEC 61672 class 2.
- Under 94 dB input signal, the accuracy are :
- 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 K Hz ± 1.4 dB
- 2 K Hz ± 2.6 dB
- 4 K Hz ± 3.6 dB
- 8 K Hz ± 5.6 dB
校正器 (Calibrator)
- B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226.
麥克風 (Microphone type)
- Electric condenser microphone.
麥克風尺寸 (Size of microphone)
- 1/2 inch standard size.
校正 VR (Calibration VR)
- Build in external calibration VR, easy to calibrate on 94 dB level by screw driver.
資料鎖定 (Data Hold)
- Hold function to freeze the display value.
操作溫度 (Operating Temp.)
- 0 to 50 ℃. ( 32 ℉ to 122 ℉ ).
操作溼度 (Operating Humidity)
- Less than 80% R.H.
電源供應 (Power Supply)
- 006P DC 9V battery (heavy duty type)
電源損耗 (Power Consumption)
- Approx. DC 6 mA.
重量 (Weight)
- 250 g/0.55 LB ( including battery ).
尺寸 (Size)
- 225 x 70 x 28 mm ( 8.9 x 2.8 x 1.1 inch).
附件 (Standard Accessory)
- Instruction manual.................... 1 PC
選購附件 (Optional & accessories Temp. Probe)
- 94 dB sound calibrator, SC-941
- 94 dB/114 dB sound calibrator, SC-942
- Sound wind shield ball, Model : SB-01.
- Hard carrying case, Model : CA-06.
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