1.可由手搖發電機提供電源，亦可使用電池
2.手搖發電機10秒以上，可提供短暫待測電量
3.測量範圍：30~130db(分貝)
4.符合國際規範IEC61672 Class2
5.A&C頻率加權測量選擇
6.時間加權選擇，快&慢選擇
7.自動換檔及手動換檔選擇
8.峰值鎖定及記錄測量中之最大/最小值
9.RS-232/USB連接介面及AC電壓信號輸出
10.尺寸：240×69×38mm
11.專利設計

FEATURES

• Hybrid power, power supply from green power ( handy generator ) or battery. If power source come from " Green power ", battery is no need. Operate the generator 30 seconds will offer several minutes energy typically.

• Main functions are designed to meet IEC 61672 class 2.

• A & C weighting networks comply with standards.

• 0.5" standard microphone head.

• Time weighting (Fast & Slow) dynamic characteristic modes.

• RS232/USB coamputer interface.

• Auto range & Manual range selection.

• Available for external calibration adjustment.

• Condenser microphone for high accuracy & long-term stability.

• Memory function to store the Max. & Min. value.

• Hold and Peak Hold functions.

• Operation key used push button.

• LCD display for low power consumption & clear read-out even in bright ambient light condition.

• Using the durable, long-lasting components, including a strong, light weight ABS-plastic housing case.

• Small and light weight design allow one hand operation.

Display

• 40 mm x 32 mm LCD (Liquid crystal display).

Function

• dB ( A & C frequency weighting )

• Time weighting ( Fast, Slow )

• Hold, Memory (Max. & Min. )

• Peak hold, RS232 output

Measurement Range

• 30 to 130 dB.

Resolution

• 0.1 dB.

Accuracy(23± 5 ℃)

• * Meet IEC 61672 class 2, tested under Input signal level on 94 dB & frequency range from 31.5 Hz to 8 k Hz.

Range selector

• Auto range : 30 to 130 dB.

• Manual range : 3 range

• 30 to 80 dB

• 50 to 100 dB

• 80 to 130 dB

• 50 dB on each step, with over & under range indicating.

Measurement Frequency

• 31.5 Hz to 8,000 Hz.

Microphone type

• Electric condenser microphone.

Size of microphone

• Out size, 12.7 mm Dia. ( 0.5 inch).

Weighting Network

• Characteristics of A & C.

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.

Calibrator

• B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226.

Output Signal

• Serial data interface.

Output terminal

• * Connect the optional RS232 cable UPCB-02 will get the RS232 plug ( D9 plug )..

• * Connect the optional USB cable USB-01 will get the USB plug.

• Terminal socket size : 3.5 mm dia. phone socket.

Calibration VR

• Build in external calibration VR, easy to calibrate on 94 dB level by screw driver.