一、概      述

　　ZR-E33法蘭安裝式差壓變送器用于測量含有固體和沉淀性液體和蒸汽的液位和密度,然后轉

變成4～20mA DC的電源信號輸出。HR-E33可與HART手操器相互通訊，進行設定、監(jiān)控等。

二、標準規(guī)格

(以標準零點為基準調(diào)校量程，接液部分材質代碼“S”3-inch平法蘭型和4-inch凸法蘭型)

三、性能規(guī)格
 
調(diào)量程的參考精度                                                           外部調(diào)零

(包括線性、滯后性和重復性)                                      在測量范圍內(nèi)連續(xù)可調(diào)，分辨率為0.01%，用表

±0.25%                                                                          頭上的測量范圍設定開關可調(diào)校量程

若量程小于量程上限                                                      安裝位置影響

±[0.2+0.05量程上限 ]%                                              與膜片面平行方向的安裝位置變化不會造成零漂

            量程                                                                      影響，若安裝位置與膜片面超過90°的變化，在

                                                                                          0.4kPa范圍內(nèi)的零漂可通過調(diào)零校正

環(huán)境溫度影響                                                                  輸   出

總影響量/28℃變化                                                       2線制，4～20mA DC輸出，數(shù)字通訊，可編程設

量程代碼4    ±[0.25%量程+0.056%量程上限]           定線性或平方根輸出方式

量程代碼5、6 ±[0.15%量程+0.028%量程上限]       環(huán)境溫度

靜壓影響                                                                          -40～85℃(-40～185°F)

變化的總影響量                                                              -30～80℃(-22～176°F)［帶LCD表頭］

±[0.058%量程+0.015%量程上                                    接液溫度

限]/0.69MPa{100psi}                                                      -40～120℃(-40～248°F)

零點影響(可通過在線校正)                                            環(huán)境濕度

±0.02%量程上限/0.69MPa                                          5～99%RH
                                                                                  
穩(wěn)定性                                                                              電源電壓
                                                                                
±0.2%量程上限/12個月                                               10.5～42V DC(工作狀態(tài))
           
電源影響                                                                         10.5～30V DC(本安型)
                                                                      
±0.015%/V(21.6V～32V DC，350Ω)                           16.4～30V DC(數(shù)字通訊)             

調(diào)    零                                                                             16.4～30V DC(本安型)
         
在膜盒量程的上下限范圍內(nèi)，零點可任意調(diào)校          負   載
                                                                                         0～1335Ω工作狀態(tài)
                                                      
                                                                                         250～600Ω數(shù)字通訊