買壓力變送器需要提供哪些壓力變送器參數呢?這個問題,你在網上一搜一大堆,連標題都是大同小異。其實,購買適合自己的壓力變送器是非常簡單的。只要掌握確定幾個因素。gHX壓力變(bian)送(song)器(qi)_差(cha)壓變(bian)送(song)器(qi)_液位(wei)變(bian)送(song)器(qi)_溫度變(bian)送(song)器(qi)
1、壓力變送器測量的是什么樣的介質,或者是介質屬性。gHX壓力變(bian)送(song)器_差壓變(bian)送(song)器_液位變(bian)送(song)器_溫度變(bian)送(song)器
黏性液體、泥漿會堵上壓力接口,溶劑或有腐蝕性的物質會不會破壞變送器,準確的說,會不會破壞與介質直接接觸的材料。以上這些因素將決定壓力變送器與介質接觸的地方采用什么材質,或是否選擇直接的隔離膜。gHX壓力(li)變送器(qi)(qi)_差壓變送器(qi)(qi)_液位變送器(qi)(qi)_溫度變送器(qi)(qi)
2、壓力變送器的測量范圍gHX壓(ya)力變送(song)器_差壓(ya)變送(song)器_液(ye)位變送(song)器_溫度變送(song)器
這個測量范圍在購買過程中,是關鍵之一,這影響到價格。然后先確定系統中測量壓力的#大值,一般而言需要選擇一個具有比#大值還要大1.5倍左右的壓力量程的變送器。這主要是在許多系統中,尤其是水壓測量和加工處理中,有峰值和持續不規則的上下波動,這種瞬間的峰值能破壞壓力傳感器。持續的高壓力值或稍微超出變送器的標定#大值會縮短傳感器的壽命,這樣做還會使精度下降。于是可以用一個緩沖器來降低壓力毛刺,但這樣會降低傳感器的響應速度。所以在選擇變送器時要充分考慮壓力范圍、精度與其穩定性。gHX壓(ya)力變送器(qi)(qi)_差壓(ya)變送器(qi)(qi)_液位變送器(qi)(qi)_溫(wen)度變送器(qi)(qi)
gHX壓(ya)力變(bian)送器(qi)_差壓(ya)變(bian)送器(qi)_液(ye)位變(bian)送器(qi)_溫(wen)度變(bian)送器(qi)
3、壓力變送器的環境溫度范圍gHX壓力變(bian)送(song)(song)器_差壓變(bian)送(song)(song)器_液位變(bian)送(song)(song)器_溫(wen)度(du)變(bian)送(song)(song)器
通常一個變送器會標定兩個溫確段,其中一個溫度段是正常任務溫度,另外一個是溫度補償領域,正常任務溫度領域是指變送器在任務形態下不被毀壞的時分的溫度領域,在超出溫度補償領域時能夠會達不到其使用的功能目標。gHX壓(ya)力變送(song)器_差壓(ya)變送(song)器_液(ye)位變送(song)器_溫(wen)度變送(song)器
溫度補償領域是一個比任務溫度領域小的典型領域。在這個領域內任務變送器一定會到達其應有的功能目標。溫度變從兩方面影響著其輸入,一是零點漂移,二是影響滿量程輸入。如:滿量程的,讀數的,在超出溫度領域時滿量程的,在溫度補償領域內時讀數的,假如沒有這些參數,會導至在運用中的不確定性。變送器輸入的變化到度是由壓力變化引發的,還是由溫度變化引發的。溫度影響是理解如何運用變送器時#復雜的一局部。gHX壓力(li)變(bian)(bian)送器(qi)_差壓變(bian)(bian)送器(qi)_液位變(bian)(bian)送器(qi)_溫度變(bian)(bian)送器(qi)
gHX壓力變送器(qi)_差(cha)壓變送器(qi)_液位變送器(qi)_溫度變送器(qi)
還要考慮:供電形式、電壓值、壓力管(波紋管)材質、輸出形式gHX壓力變(bian)(bian)送(song)器(qi)(qi)_差(cha)壓變(bian)(bian)送(song)器(qi)(qi)_液(ye)位(wei)變(bian)(bian)送(song)器(qi)(qi)_溫度(du)變(bian)(bian)送(song)器(qi)(qi)
4、壓力變送器的精度需要多大,本公司#大的精度可達0.075%gHX壓力變(bian)送(song)器_差壓變(bian)送(song)器_液位變(bian)送(song)器_溫度變(bian)送(song)器
決定精度的有,非線性,遲滯性,非重復性,溫度、零點偏置刻度,溫度的影響。但主要由非線性,遲滯性,非重復性,精度越高,價格也就越高。本公司的高精度壓力變送器價格保證物美價廉。gHX壓力變送(song)器_差(cha)壓變送(song)器_液位變送(song)器_溫度變送(song)器
gHX壓力變送(song)(song)器(qi)(qi)_差(cha)壓變送(song)(song)器(qi)(qi)_液位(wei)變送(song)(song)器(qi)(qi)_溫度變送(song)(song)器(qi)(qi)
5、輸出形式是怎樣的gHX壓(ya)力變(bian)送器(qi)_差壓(ya)變(bian)送器(qi)_液位變(bian)送器(qi)_溫度變(bian)送器(qi)
mV、V、mA及頻率輸入數字輸入,選擇怎樣的輸入取決于多種要素,包括變送器與零碎控制器或顯示器間的間隔,能否存在“噪聲”或其他電子攪擾信號,能否需求縮小器,縮小器的地位等。關于許多變送器和控制器間間隔較短的OEM設備采用mA輸入的變送器#為經濟而有用的處理辦法。gHX壓力變(bian)送(song)器(qi)_差(cha)壓變(bian)送(song)器(qi)_液位變(bian)送(song)器(qi)_溫度變(bian)送(song)器(qi)
假如需求將輸入信號縮小,#佳采器具有內置縮小的變送器。關于遠間隔傳輸或存在較強的電子攪擾信號#佳采用mA級輸入或頻率輸入。gHX壓力變送器(qi)_差壓變送器(qi)_液位變送器(qi)_溫度(du)變送器(qi)
假如在RFI或EMI目標很高的環境中除了要留意到要選擇mA或頻率輸入外還要思索到特別的維護或過濾器。gHX壓力變(bian)送器_差壓變(bian)送器_液位變(bian)送器_溫度變(bian)送器
6、 輸出形式的類型決定選擇什么樣的勵磁電壓gHX壓力(li)變(bian)送器_差壓變(bian)送器_液位變(bian)送器_溫(wen)度變(bian)送器
許多變送器有內置的電壓調理安裝,因而其電源電壓領域較大。有些變送器是定量配置,需求一個穩固的任務電壓,因而,任務電壓確定能否采用帶有調理器的傳感器,選擇傳送器時要綜合思索任務電壓與零碎造價。gHX壓力變(bian)送器_差壓變(bian)送器_液位變(bian)送器_溫度變(bian)送器
gHX壓力變送器_差(cha)壓變送器_液(ye)位變送器_溫度變送器
7、變送器超時任務后需求堅持穩固度gHX壓力變送(song)器(qi)_差壓變送(song)器(qi)_液位變送(song)器(qi)_溫(wen)度(du)變送(song)器(qi)
大局部變送器在經歷超額任務后會發生“漂移”,因而很有必要在購置前理解變送器的穩固性,這種事后的任務能增加未來運用中會顯示的種種費事。gHX壓(ya)力變(bian)(bian)送(song)(song)(song)器_差壓(ya)變(bian)(bian)送(song)(song)(song)器_液位變(bian)(bian)送(song)(song)(song)器_溫(wen)度變(bian)(bian)送(song)(song)(song)器
gHX壓力(li)變(bian)送(song)器_差壓變(bian)送(song)器_液位(wei)變(bian)送(song)器_溫度變(bian)送(song)器
8、是否需要具備互換性的變送器gHX壓力變送器(qi)_差(cha)壓變送器(qi)_液位變送器(qi)_溫度變送器(qi)
確定所需的變送器是否能夠適應多個使用系統。一般來講這一點很重要,尤其是對于OEM產品。一旦將產品送到客戶手中那么客戶用來校準的花銷是相當大的。如果產品具有良好的互換性,那么即使改變所用的變送器也不會影響整個系統的效果。gHX壓(ya)力變(bian)送(song)器_差(cha)壓(ya)變(bian)送(song)器_液(ye)位變(bian)送(song)器_溫(wen)度變(bian)送(song)器
gHX壓力變(bian)送器_差壓變(bian)送器_液位變(bian)送器_溫度變(bian)送器
9、在變送器與其它電子設備間采用怎樣的銜接gHX壓力(li)變(bian)送器_差壓變(bian)送器_液位變(bian)送器_溫(wen)度變(bian)送器
能否需求采用短間隔銜接?若是采用長間隔銜接,能否需求采用一個銜接器?gHX壓(ya)力變(bian)送(song)器(qi)_差壓(ya)變(bian)送(song)器(qi)_液位變(bian)送(song)器(qi)_溫度變(bian)送(song)器(qi)
10、變送器的封裝問題gHX壓力變送器(qi)(qi)_差壓變送器(qi)(qi)_液(ye)位變送器(qi)(qi)_溫度變送器(qi)(qi)
變送器的封裝,往往輕易疏忽是它的機架,但是這一點在過后運用中會逐步表露出其缺陷。在選購變送器時一定要思索到未來變送器的任務環境,濕度如何,怎樣裝置變送器,會不會有激烈的撞擊或震動等。gHX壓力變送器(qi)(qi)(qi)_差壓變送器(qi)(qi)(qi)_液位變送器(qi)(qi)(qi)_溫度(du)變送器(qi)(qi)(qi)
gHX壓力變送(song)器(qi)_差壓變送(song)器(qi)_液位變送(song)器(qi)_溫度變送(song)器(qi)
掌握確定以上因素,再根據選型表選擇壓力變送器,那肯定是基本沒有問題。gHX壓(ya)力(li)變(bian)送(song)器(qi)(qi)_差壓(ya)變(bian)送(song)器(qi)(qi)_液位變(bian)送(song)器(qi)(qi)_溫度變(bian)送(song)器(qi)(qi)
相關產品tuijian:擴散硅壓力變送器、壓力變送器廠家 、gHX壓力變(bian)(bian)送(song)器(qi)_差壓變(bian)(bian)送(song)器(qi)_液位(wei)變(bian)(bian)送(song)器(qi)_溫度變(bian)(bian)送(song)器(qi)