YJ系列一般壓力表
YJ Series Common Pressure Meter
壓力表證書（http://www.chinawanda.net/default.asp?a_c_id=236&a_id=16489）
簡介
一般壓力表系列用于測量無爆炸危險，不結(jié)晶，不凝固，且對鋼及銅合金不起腐蝕作用的液體、氣體和蒸汽的壓力或真空。
典型的應用場所為:空氣壓縮機、真空泵、工藝管路、調(diào)壓閥、測試設備、科研消毒器等。
一般壓力表系列用于測量無爆炸危險，不結(jié)晶，不凝固，且對鋼及銅合金不起腐蝕作用的液體、氣體和蒸汽的壓力或真空。
Brief introduction
Common pressure meter series are suitable for measuring the pressure of liquid, gas and steam or vacuum, which are non-crystalloid and non-concretionary, and have no danger of explosion and do not erode steel and copper alloy.
Typical applicable locations are: air compressor, vacuum pump, compressing air pipeline, pressure regulating valve, testing equipment, and medical sterilizer, etc.
構(gòu)成示意圖 Internal structure
主要技術(shù)參數(shù)
- 精確度:1.6級、2.5級
- 使用環(huán)境條件: -40℃~70℃,相對濕度不大
于85%。 - 溫度影響：使用溫度偏離20±5℃時,不大于
Principal technical parameters
- Accuracy: 1.6、 2.5 grades
- -40℃~70℃, relative humidity is not more than 85%
- Temperature influence:
- When temperature departure is 20±5℃, additional
- temperature error is not more than 0.4%/10℃.
型號表示 Model designations
標記示例：YJZ-100ZT 產(chǎn)品電腦編碼為:1002054301
軸向前邊壓力真空表，安裝形式為軸向盤裝式。產(chǎn)品電腦編碼詳見《一般壓力系列儀表選型指南》。
Marking instance：YJZ-100ZT Production computer coding：1002054301
Axial front pressure vacuum meter. mounted form is axial dial mounted product computer coding, please see the“Guide for type
selection of common series instruments and meters”
型號規(guī)格 Types and specifications
結(jié)構(gòu)分解圖 Internal structure
說明: 防爆窗可釋放因過載彈性元件破裂而產(chǎn)生的內(nèi)部壓力，增強了人員及設施的安全性。
Specification:explosion-proof window can release inner pressure caused by break of elastic component when over loaded, and thus security of personnel and establishment is ensured.
結(jié)構(gòu)原理
儀表由導壓系統(tǒng)（包括接頭、彈簧管等）、齒輪傳動機構(gòu)、示數(shù)裝置（指針與表盤）和外殼（包括表殼、表罩、表玻璃等）組成。
彈簧管在壓力和真空的作用下，產(chǎn)生彈性變形引起管端位移，其位移通過機械傳動機構(gòu)進行放大，傳遞給示數(shù)裝置，再由指針在刻有法定計量單位的度盤上指出被測壓力或真空量值。
Configuration principle
The meter is composed of pressure leading system （including joint, spring tube, etc）, gear wheel driving machine, indicator device （pointer and meter dial） and crust （including meter crust, meter cover, meter glass, etc）.
Under the action of pressure and vacuum, spring tube will produce elastic deformation causing displacement at the end. The displacement is enlarged by mechanical driving device and transferred to indicator, and then the pointer of the meter dial, with measure unit on it, indicates the pressure value or vacuum value
度盤表示方法 Show method of the dial
zui小分度值表 Min value of pitch line
如需定制特殊表盤,請在訂單中注明。For customized special meter dial,clear notes shall be made on the order.
缺表格
度盤參考圖 Dial plate
貨須知 Ordering instructions 訂貨時須注明：型號、名稱、精確度、測量范圍。如特殊要求，請注明技術(shù)要求。
Ordering instructions: The product computer code ,types, names, accuracy grades, and measuring ranges .must be clearly noted. In case of special requirements, technical requirements shall be clearly noted specifications on the back of the order on ordering goods.
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