Máy đo độ ồn và phân tích dải tần BSWA 308

Hãng sản xuất: BSWA

Model: BSWA 308

Tính năng kỹ thuật:

Loại Class 1

Dải tần 1/1 và 1/3 Octave tương thích IEC61260-1:2014 and ANSI S1.11-2004

Thang tuyến tính: 25-136dBA

Cài đặt tính toán với 03 nhóm khác nhau tính toán theo tần số trên thời gian.

Người sử dụng thiết lập được 14 cách tính đo riêng biệt có các thông số như SPL, LEQ, Max, Min, Peak, SD, SEL, E

Màn hình hiển thị đường cong đo thống kê.

Sử dụng vi xử lý ARM tốc độ cao cho phép sử lý tần số rộng và độ nhiễu ồn thấp

Bộ nhớ dạng MicroSD có dung lượng 4G

Cổng kết nối và điều khiển RS232

Thiết lập được thời gian đo từ 1 giây đến 24 giờ

Cài đặt thời gian lấy mẫu và lưu 0.1 giây, 0.2 giây, 0.5 giây hoặc cài đặt thêm từ người sử dụng.

Đầu dò loại 1/2inch, Class 1, độ nhạy: 40mV/Pa, thang tần số: 20Hz đến 12.5kHz

Chức năng đo: LXY(SPL), LXeq, LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN.

Dạng tần số: A, B, C, Z

Dải tần: 1/1 Octave thang đo 20Hz đến 8kHz, 1/3 Octave: 20Hz đến 12.5kHz

Thang đo động: 122dB (14dB(A)~136dB(A))

Dãy đo đỉnh C: 47dB(A)~139dB(A)

Tốc độ lấy mẫu 20mS

Đường cong độ ồn được hiển thị trên màn hình với khoảng thời gian 1 phút, 2 phút và 10 phút.

Màn hình hiển thị LCD 160x160mm với đèn nền trắng sáng kèm 14 mức chỉnh độ tương phản.

Nguồn điện: 4 pin loại 1.5V thời gian sử dụng khoảng 10 giờ, kết hợp với adapter nguồn bên ngoài nguồn cấp 7-14V (500mA.

Product Features：

● Class 1 (BSWA 308) and Class 2 (BSWA 309) sound level meter

● Comply with IEC 61672-1:2013, ANSI S1.4-1983 and ANSI S1.43-1997

● 1/1 Octave in accordance with IEC61260-1:2014 and ANSI S1.11-2004

● Linearity range: 20dBA~134dBA (Class 1), 25dBA~136dBA (Class 2)

● Single range to cover 123dB/122dB dynamic range

● Frequency weighting A/B/C/Z. Time weighting Fast/Slow/Impulse

● 3 profile calculation in parallel with different frequency/time weighting. 14 custom define measurement

● Calculate SPL, LEQ, Max, Min, Peak, SD, SEL, E

● LN statistics and time history curve display

● User def ne integral period measurement, integral period up to 24h

● High speed ARM core with FPU (Float Point Unit) to achieve wide frequency response, large dynamic range and low noise floor

● 4G MicroSD card (TF card) mass storage

● RS-232 remote control port

● Mini thermal printer for measurement data print

● Internal GPS module (option), support GPS timing.

Specification
Type	BSWA 308
Accuracy	Class 1 / Group 1
Standard	GB/T 3785.1-2010, IEC 60651:1979, IEC 60804:2000, IEC 61672-1:2013, ANSI S1.4-1983, ANSI S1.43-1997
Octave	<span "="" style="font-size: 14px;">1/1 Octave, Centre Frequencies: 31.5Hz to 16kHz GB/T 3241-2010 Class 1, IEC 61260-1:2014 Class 1 ANSI S1.11-2004 Class 1
Supplied Microphone	MPA231T: 1/2” prepolarized measurement microphone, Class 1. Sensitivity: 50mV/Pa. Frequency Range: 10Hz~20kHz.
Mic Interface	TNC connecter with ICCP power supply (4mA/24V)
Detector / Filter	Fully float-point digital signal processing (digital detector and filter）
Integral Period	1s-24h user define integral period. Repeat time: infinite, 1~9999
Measurement Functions	LXY(SPL), LXeq, LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN. Where X is the frequency weighting: A, B, C, Z; Y is time weighting: F, S, I; N is the statistical percentage: 1~99.
24h Measurement	Automatic measurement and log the history data
Frequency Weighting	Parallel A, B, C, Z
Time Weighting	Parallel F, S, I and Peak detection
Self-noise	Sound: 18dB(A), 23dB(C), 31dB(Z) Electrical: 11dB(A), 16dB(C), 21dB(Z)
Upper Limit	134dB(A) Increase to 154dB(A) with 5mV/Pa Microphone
Frequency Response	10Hz~20kHz
Linearity Range	20dB(A)~134dB(A)
Dynamic Range	123dB (11dB(A)~134dB(A))
Peak C Range	45dB(A)~137dB(A)
Range Setting	<span "="" style="font-size: 14px;">Single range to cover whole dynamic range
Resolution	24Bits
Sampling Rate	48kHz
Noise Curve	Time domain noise curve display. Duration time: 1min, 2min, 10min
LCD Display	160x160 LCD with white backlight, 14 step contrast level
Mass Storage	4G MicroSD card (TF card)
Post-processing	Post-processing software VA-SLM can read, analyze and generate reports of store data
Export Data	Directly connect to the computer to read the memory card (USB disk)
Output	AC (max 5VRMS output), DC (10mV/dB), RS-232 serial interface and USB virtual serial port
Alarm	User define alarm threshold. LED indicate the alarm status
Power Supply	4x1.5V alkaline batteries (LR6/AA/AM3), sustainable use of more than 10 hours. It also can be supply by external DC power (7V-14V 500mA) and USB power (5V 1A)
RTC	Built-in backup battery has been calibrated at factory to the error <26s in 30days (<10ppm, 25±16℃). It can keep RTC running when replacing the main batteries. GPS timing function available (option with GPS module)
Firmware Update	Update firmware via USB port
Conditions	Temperature: -10℃~ 50℃. Humidity: 20% ~ 90%RH
RT Temperature	Real-time temperature display on the main screen
Size (mm)	W70 x H300 x D36
Weight	Approx. 620g, including 4 alkaline batteries
GPS(option)	Receiver Type: 50 Channels; Time-To-First-Fix: Cold Start 27s, Warm Start 27s, Hot Start 1s; Sensitivity: Tracking -161dBm, Reacquisition -160dBm, Cold Start -147dBm, Hot Start -156dBm; Horizontal position accuracy: 2.5m, Timing accuracy: 30ns, Velocity accuracy: 0.1m/s; Update Rate: 1Hz, Operation Limits: Dynamic≤4g, Altitude<50000m, Velocity<500m/s
Calibrator(option)	CA111, Class 1, 94dB/114dB, 1kHz
Printer(option)	<span "="" style="font-size: 14px;">Mini thermal printer, RS-232 port

Specification
Type	BSWA 308
Accuracy	Class 1 / Group 1
Standard	GB/T 3785.1-2010, IEC 60651:1979, IEC 60804:2000, IEC 61672-1:2013, ANSI S1.4-1983, ANSI S1.43-1997
Octave	<span "="" style="font-size: 14px;">1/1 Octave, Centre Frequencies: 31.5Hz to 16kHz GB/T 3241-2010 Class 1, IEC 61260-1:2014 Class 1 ANSI S1.11-2004 Class 1
Supplied Microphone	MPA231T: 1/2” prepolarized measurement microphone, Class 1. Sensitivity: 50mV/Pa. Frequency Range: 10Hz~20kHz.
Mic Interface	TNC connecter with ICCP power supply (4mA/24V)
Detector / Filter	Fully float-point digital signal processing (digital detector and filter）
Integral Period	1s-24h user define integral period. Repeat time: infinite, 1~9999
Measurement Functions	LXY(SPL), LXeq, LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN. Where X is the frequency weighting: A, B, C, Z; Y is time weighting: F, S, I; N is the statistical percentage: 1~99.
24h Measurement	Automatic measurement and log the history data
Frequency Weighting	Parallel A, B, C, Z
Time Weighting	Parallel F, S, I and Peak detection
Self-noise	Sound: 18dB(A), 23dB(C), 31dB(Z) Electrical: 11dB(A), 16dB(C), 21dB(Z)
Upper Limit	134dB(A) Increase to 154dB(A) with 5mV/Pa Microphone
Frequency Response	10Hz~20kHz
Linearity Range	20dB(A)~134dB(A)
Dynamic Range	123dB (11dB(A)~134dB(A))
Peak C Range	45dB(A)~137dB(A)
Range Setting	<span "="" style="font-size: 14px;">Single range to cover whole dynamic range
Resolution	24Bits
Sampling Rate	48kHz
Noise Curve	Time domain noise curve display. Duration time: 1min, 2min, 10min
LCD Display	160x160 LCD with white backlight, 14 step contrast level
Mass Storage	4G MicroSD card (TF card)
Post-processing	Post-processing software VA-SLM can read, analyze and generate reports of store data
Export Data	Directly connect to the computer to read the memory card (USB disk)
Output	AC (max 5VRMS output), DC (10mV/dB), RS-232 serial interface and USB virtual serial port
Alarm	User define alarm threshold. LED indicate the alarm status
Power Supply	4x1.5V alkaline batteries (LR6/AA/AM3), sustainable use of more than 10 hours. It also can be supply by external DC power (7V-14V 500mA) and USB power (5V 1A)
RTC	Built-in backup battery has been calibrated at factory to the error <26s in 30days (<10ppm, 25±16℃). It can keep RTC running when replacing the main batteries. GPS timing function available (option with GPS module)
Firmware Update	Update firmware via USB port
Conditions	Temperature: -10℃~ 50℃. Humidity: 20% ~ 90%RH
RT Temperature	Real-time temperature display on the main screen
Size (mm)	W70 x H300 x D36
Weight	Approx. 620g, including 4 alkaline batteries
GPS(option)	Receiver Type: 50 Channels; Time-To-First-Fix: Cold Start 27s, Warm Start 27s, Hot Start 1s; Sensitivity: Tracking -161dBm, Reacquisition -160dBm, Cold Start -147dBm, Hot Start -156dBm; Horizontal position accuracy: 2.5m, Timing accuracy: 30ns, Velocity accuracy: 0.1m/s; Update Rate: 1Hz, Operation Limits: Dynamic≤4g, Altitude<50000m, Velocity<500m/s
Calibrator(option)	CA111, Class 1, 94dB/114dB, 1kHz
Printer(option)	<span "="" style="font-size: 14px;">Mini thermal printer, RS-232 port

- Giá bán:	27.560.000 [Chưa bao gồm VAT]
- Bảo hành:	12 tháng
- Model:	BSWA 309
- Tình trạng:	Còn hàng

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