寶德8175型超聲波液位計(jì),BURKERT流量計(jì),寶德液位計(jì)8715型

寶德8175型超聲波液位計(jì)抗干擾能力極差，線路損耗的破壞,談不上精度有多高,有時(shí)輸出的直流電壓上還疊加有交流成分，使單片機(jī)產(chǎn)生誤判斷，控制出現(xiàn)錯(cuò)誤，嚴(yán)重時(shí)還會(huì)損壞設(shè)備，輸出０－５Ｖ不能遠(yuǎn)傳，遠(yuǎn)傳后線路壓降大，精確度大打折扣。現(xiàn)在很多的ADC,PLC,DCS的輸入信號(hào)端口都作成兩線制電流輸出型變送器4-20mA的,證明了電壓輸出型變送器被淘汰的必然趨勢。寶德8175型超聲波液位計(jì)的輸出范圍常用的有0～20mA及4～20mA兩種，電流變送器輸出zui小電流及zui大電流時(shí)，分別代表電流變送器所標(biāo)定的zui小及zui大額定輸出值。
BURKERT下面以測量范圍為以0～１００Ａ的電流變送器為例進(jìn)行敘述。對(duì)于輸出0～20mA的變送器0mA電流對(duì)應(yīng)輸入０Ａ值，輸出4～20mA的變送器4mA電流對(duì)應(yīng)輸入0Ａ值，兩類傳感器的20mA電流都對(duì)應(yīng)１００Ａ值。寶德8175型超聲波液位計(jì)大多為電壓輸出型，即將測量信號(hào)轉(zhuǎn)換為0-5V電壓輸出，這是運(yùn)放直接輸出,信號(hào)功率<0.05W,通過模擬/數(shù)字轉(zhuǎn)換電路轉(zhuǎn)換數(shù)字信號(hào)供單片機(jī)讀取、控制。但在信號(hào)需要遠(yuǎn)距離傳輸或使用環(huán)境中電網(wǎng)干擾較大的場合，電壓輸出型傳感器的使用受到了極大限制，暴露了抗干擾能力較差,線路損耗破壞了精度等等等缺點(diǎn)，而兩線制電流輸出型變送器以其具有*的抗干擾能力得到了廣泛應(yīng)用。
181596 2835-A-08,0-AA-MS-NM84-024/DC-16                                        
181597 2835-A-08,0-AA-VA-NM84-024/DC-16                                        
181598 2835-A-08,0-AA-VA-GM84-024/DC-16                                        
181802 SET5-2030-02-00,00000-F-K00-0181802* ND01                               
182036 6013-A03,0FFVAGM81-5-024/DC-08     * NA01+PC04                          
182383 8611-C-E-A-Y-14-0-04-1-01-2-09                                          
182529 2035-33R50-AC-VH-SA40-AE-D11-SE1   * NO14+NO22                          
182530 2035-33R50-AC-VH-K003-AE-D11-SE1   * NO14+NO22                          
182609 0256-A-05,0-FF-MS-GM82-230/UC-CB   * AF12+CZ05+JF01                     
183179 0470-G-04,0-BB-TA22-FS05-024/UC-02 * AF06                               
183180 AC07-U2-2-23AA                     * JC28+JW03                          
183236 AC07-U2-2-28AA                                                          
184404 V027-C02,0FFMSFB01-V-A-07-U3       * CF16                               
184544 6027-B02,0FFMSGM81-6-220/56-09     * NA38                               
184545 6027-B02,5FFMSGM81-6-220/56-09     * NA38                               
184547 6027-B03,0FFMSGM81-6-220/56-09     * NA38                               
184548 6027-B02,0FFMSGM82-6-220/56-09     * NA38    

寶德8175型超聲波液位計(jì),BURKERT流量計(jì),寶德液位計(jì)8715型
         
184549 6027-B02,5FFMSGM82-6-220/56-09     * NA38                               
184550 6027-B03,0FFMSGM82-6-220/56-09     * NA38                               
184551 6027-B06,0FFMSGM82-6-220/56-09     * NA38                               
184552 6027-B03,0FFMSGM83-6-220/56-09     * NA38                               
184553 6027-B06,0FFMSGM83-6-220/56-09     * NA38                               
184555 6027-A01,2FFMSGM81-2-220/56-04     * NA72                               
184556 6027-A01,7FFMSGM81-2-220/56-04     * NA72                               
184557 6027-A02,0FFMSGM81-2-220/56-04     * NA72                               
184558 6027-A02,5FFMSGM81-2-220/56-04     * NA72                               
184559 6027-A01,2FFVAGM81-2-220/56-04     * NA72                               
184560 6524-C04,0-FM14-0000-Z0-EXI/01-AW  * JB18+JF80+PD98                     
184561 6027-A01,7FFVAGM81-2-220/56-04     * NA72                               
184562 6027-A02,0FFVAGM81-2-220/56-04     * NA72                               
184563 6027-A02,5FFVAGM81-2-220/56-04     * NA72                               
184564 6525-H04,0-FM14-0000-Z0-EXI/01-AW  * JB18+JF80+PD98                     
184568 6027-C01,2FFMSGM81-2-220/56-04     * NA72                               
184569 6027-C01,6FFMSGM81-2-220/56-04     * NA72                               
184570 6027-D01,2FFMSGM81-2-220/56-04     * NA72                               
184571 6027-D01,6FFMSGM81-2-220/56-04     * NA72                               
184572 6027-C01,2FFVAGM81-2-220/56-04     * NA72