結(jié)構(gòu)原理
儀表由導(dǎo)壓系統(tǒng)(包括接頭、彈簧管等)、傳動(dòng)機(jī)構(gòu)、指示裝置和外殼等組成。
當(dāng)被測(cè)介質(zhì)作用于彈簧管時(shí),其管端產(chǎn)生相應(yīng)的彈性變形——位移,經(jīng)傳動(dòng)機(jī)構(gòu)放大后,由指示裝置在度盤(pán)上把被測(cè)壓力指示出來(lái)。
Configuration principle
This instrument consists of pressure pilot system (comprising joints, spring pipe, and so on), running gear, indicating device, and outer housing, etc.
When the medium acts on the spring pipe, corresponding elastic deformation or displacement occurs at the pipe end accordingly, which is amplified through running gear and displayed in indicating devices dial as the pressure being tested.
型號(hào)表示
標(biāo)記示例:YJA-150ZT
軸向前邊氨用壓力表,安裝形式為軸向盤(pán)裝式。
產(chǎn)品電腦編碼詳見(jiàn)《氨用壓力系列儀表選型指南》。
Model designations
Mark example: YJA-150ZT
For axial front pressure meter for ammonia, the installation form is dial-mounted in axial direction. For further information on computer code, please see the “Guide for type selection of ammonia series instruments and meters”
主要技術(shù)參數(shù)
• 精確度:2.5級(jí),1.6級(jí)
• 使用環(huán)境條件:-40~70℃,相對(duì)濕度不大于90%
• 溫度影響:不大于0.4%/10℃(使用溫度偏離20±5℃)
Principal technical parameters:
• Accuracy: 1.6, 2.5 grades
• Environmental condition in use: -40~70℃, relative humidity less than 90%
• Temperature affect: no greater than 0.4%/10oC (with temperature departure of 20±5oC)
型號(hào)規(guī)格 Types and specifications
型號(hào)
精度 1.6
壓力范圍(MPa)
YJA-100、100Z、100ZT
YJA-150、150Z、150ZT 0~0.1;0~0.16;0~0.25;0~0.4;0~0.6;0~1;0~1.6;0~2.5;0~4;0~6;0~10;0~16;0~25;0~40;0~60
外形尺寸 External dimension