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SL-4030 噪音計
特色
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測量範圍 : 30dB ~ 130dB (分貝).
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測量頻率範圍 : 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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反應時間 : 快速 : 0.2秒 ' 慢速 : 1.5秒
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A/C加權網路測量選擇(Weighting)
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可抓取最大測量值功能
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交流/直流訊號輸出,可外接記錄器
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Size : 207 x 69 x 37mm.
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DC ADAPTER
FEATURES
Large LCD display, easy to read.
Time weighting and frequency weighting meet , IEC 61672 class 2.
A & C weighting networks are conformity to standards.
0.5" standard out size of the microphone.
Time weighting (Fast & Slow) dynamic characteristic modes.
AC / DC output for system expansion.
External calibration VR.
Condenser microphone for high accuracy & long-term stability.
MAX. HOLD function for stored the maximum value.
Warning indicator for over and under load.
Low battery indicator.
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.
Pocket and light weight design allow one hand operation.
Power by 006P DC 9V battery or DC 9V adapter.
一般規格
顯示 (Display)
- LCD size : 49 mm x 25.5 mm,
- Digit size : 21.7 mm x 8.8 mm.
功能 (Function)
- dB (A & C weighting), Time weighting (Fast, Slow), Max. hold, AC output, DC output.
測量範圍 (Measurement Range)
- A Weighting- 3 ranges, 30 to 130 dB.
- C Weighting- 3 ranges, 30 to 130 dB.
解析度 (Resolution)
- 0.1 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), the accuracy of frequency 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 K Hz ± 1.4 dB
- 2 K Hz ± 2.6 dB ; 4 K Hz ± 3.6 dB ; 8 K Hz ± 5.6 dB
測量頻率 (Measurement Frequency)
- 31.5 Hz to 8,000 Hz.
麥克風 (Microphone type)
- Electric condenser microphone.
麥克風尺寸 (Size of microphone)
- Out size, 12.7 mm Dia. ( 0.5 inch).
加權網路 (Weighting Network)
- Characteristics of A & C.
範圍選擇 (Range selector)
- 3 ranges ( 30 to 80 dB, 50 to 100 dB, 80 to 130 dB ).
- * 50 dB on each step,
- * with over / under range indicating.
快慢時間加權 Time weighting (Fast, Slow)
- Fast - t= 200 ms, Slow - t = 500 ms,
- * "Fast" range is simulated the human ear response time.
- * "Slow" range is easy to get the avg. values of vibration sound level.
- * The "Fast" & "Slow" response range are designed to meet IEC 61672 class 2 requirement.
校正器 (Calibrator)
- B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226.
輸出訊號 (Output Signal)
- AC output - AC 0.5 Vrms corresponding to each range step.
- DC output - DC 0.3 to 1.3 VDC, 10 mV / per dB.
- Output impedance - 600 ohm.
輸出端子 (Output terminal)
- 3.5 mm dia. phone output terminal is provided for connection with analyzer, level recorder, tape recorder.
操作溫度 (Operating Temp. )
- 0 to 50 ℃.
操作溼度 (Operating Humidity)
- Less than 80% R.H.
電源供應 (Power Supply)
- 006P DC 9V battery (heavy duty type) or DC 9V adapter input.
電源損耗 (Power Consumption)
- Approx. DC 10 mA.
重量 (Weight)
- 213 g/0.5 LB.
尺寸 (Size)
- 200 x 69 x 28 mm ( 7.9x2.7x1.4 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
- AC to DC 9V adapter.
- Wind shield ball, SB-01
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