1.即時數據記錄儲存於SD記憶卡

  資料可下載到Excel，做圖表分析

  (記憶卡選購)

2.測量範圍：30.0~130.0dB(分貝)±1.4dB

  SPL：30-80,50-100,80-130自動換檔

  測量頻率範圍：31.5~8000Hz

3.噪音值4-20mA輸出，可外接控制器

  CT-2012 4-20MA控制/警報表頭

4.快/慢-時間加權：

  Fast-t快加權= 125ms，人耳模擬加權

  Slow-t慢加權= 1s，振動聲平均值

5.附外接夾式噪音麥克風

6.綠色背光顯示

7.符合國際規範IEC61672 Class 2

  詳見目錄附表

8.A&C頻率加權及時間加權快/慢選擇

9.峰值鎖定及記錄測量中之最大/最小值

  取樣時間1秒

10.RS-232/USB連接介面(軟體選購)

11.尺寸：132*80*32mm

12.電源：1.5V 4號電池*6

 

☆內建SD卡紀錄器功能，同時紀錄時間/日期

  自動取樣時間可設定1-3600秒

  可設定手動紀錄

FEATURES

• Frequency and Time weighting are designed to meet IEC 61672 class 2.

• A & C weighting networks comply with standards.

• LCD is dot-matrix with backlight and easy reading.

• Data-logger and Sound level meter.

• 0.5" standard microphone head.

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

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

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

• Hold functions.

• Real time Datalogger Records device of internal memory device (EEPROM) and an external memory device ( SD memory card ) ,Real time Datalogger, it Built-in Clock and Calendar, real time data recorder, sampling time set from 1 second to 3600 seconds.

• Manual datalogger is available ( set the sampling time to 0 second ).

• Innovation and easy operation, computer is not need to setup extra software, after execute datalogger, just take away the SD card from the meter and plug in the SD card into the computer, it can download the all the measured value with the time information ( year/month/date/hour/minute/second ) to the Excel directly, then user can make the further data or graphic analysis by themselves.

• SD card capacity : 1 GB to 16 GB.

• Can default auto power off or manual power off.

• 4-20 mA analog output.

• Microcomputer circuit, high accuracy.

• Power by UM4/AAA ( 1.5 V ) x 6 batteries or DC 9V adapter.

• RS232/USB PC COMPUTER interface.

• Heavy duty & compact housing case.

Circuit

• Custom one-chip of microprocessor LSI circuit.

Display

LCD size : 50 mm x 30 mm

• LCD with green backlight ( ON/OFF ).

Measurement Type

• SPL : Sound pressure level

Measurement Range

• 0.1 dB.

Resolution

• 0.1 dB.

Function

• dB ( A & C frequency weighting )

• Time weighting ( Fast, Slow )

• Data hold

• Record ( Max., Min. )

精確度 (Accuracy) (23± 5 ℃)

• Characteristics of " A " frequenc 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 KHz : ± 1.4 dB

• 2 KHz : ± 2.6 dB

• 4 KHz : ± 3.6 dB

• 8 KHz : + 5.6 dB

• Remark : The above spec. are tested under the environment RF Field Strength less than 3 V/M & frequency less than 30 MHz only.