modbus485噪聲傳感器是由485模塊 JHM-M485+JHM-NF18 組成的一套測量設(shè)備。，MODBUS485接口輸出,被動(dòng)呼叫模式，地址、通訊波特率可靈活設(shè)定。模塊過流、過壓保護(hù)，防雷擊及電涌破壞。

modbus485噪聲傳感器參數(shù)：

產(chǎn)品型號(hào)                                                       JHM-NS02

規(guī)格                                                                  80mmX25mm

測量誤差                                                       +/- 1.5dB（2Khz80dB 點(diǎn)校正）

轉(zhuǎn)換精度                                                          0.1dB

輸出模式                                                        擴(kuò)展 485

頻率加權(quán)特性                                           A 加權(quán)特性

拾音器廠家                                                 東芝電容式（外披防風(fēng)）

A 加權(quán)動(dòng)態(tài)測量范圍                            30dB to 120dB（自動(dòng)換擋）

頻率響應(yīng)                                                       35 Hz to 20KHz

動(dòng)態(tài)特性                                                       FAST

工作及存儲(chǔ)溫度                                      -10 -----60℃

工作及存儲(chǔ)濕度                                        10 ----- 90RH%

電源標(biāo)準(zhǔn)                                                       DC9V—DC12V(波紋<0.5%)電流 30mA