類(lèi)型：

膜片壓力表

簡(jiǎn) 介
　　電阻遠(yuǎn)傳壓力表通過(guò)儀表內(nèi)部的滑動(dòng)電阻發(fā)送器把被測(cè)值以電量值傳至遠(yuǎn)離測(cè)量點(diǎn)的二次儀表上，以實(shí)現(xiàn)集中檢測(cè)和遠(yuǎn)距離控制，此外本儀表能夠同時(shí)就地指示壓力，（便于現(xiàn)場(chǎng)工藝檢查）。本儀表還可以與膜片隔離器（隔離體）連接，制成電阻遠(yuǎn)傳隔膜壓力表，可測(cè)量腐蝕性較強(qiáng)、黏度大、易結(jié)晶介質(zhì)的壓力。
BRIEF INTRODUCTION
　　Through the built-in adjustable resistance transmitter, 840 series gauges can transmit the measured values to the secondary gauges far from the site and achieve the concentrated examination and remote control. Meanwhile, the gauges can indicate the pressure value (for spot technical inspection). It can be connected with deaphragm insulator, making pressure gauge with resistance transmitter, Designed for strong corrosive, viscous and easy to be crystallographic media.
工作原理
儀表由一個(gè)彈簧管壓力表和一個(gè)滑線(xiàn)電阻式傳感器組成，當(dāng)被測(cè)壓力變化時(shí)，彈簧管端產(chǎn)生位移，一方面通過(guò)傳動(dòng)系統(tǒng)使指針在度盤(pán)上指示相應(yīng)壓力，另一方面帶動(dòng)電刷在電阻上滑行，使被測(cè)壓力值的變化轉(zhuǎn)換為電阻值的變化，并傳至二次儀表上指示相應(yīng)的壓力。
Operating Principle
The gauge is formed by a bourdon tube pressure gauge and a adjustable resistance transmitter. When the pressure is changing, the tube end deformed, and the pointer is to
show the pressure value through the driving system, at the same time, the brush is slipping
on the resistance to transmit the pressure values to resistant values, which is transmited tothe secondary gauge to show the relative pressure value.
 
YTZ 主要技術(shù)參數(shù)
測(cè)量介質(zhì)：對(duì)銅合金無(wú)腐蝕作用氣體或液體（可與多類(lèi)化學(xué)密封隔離器配接在各種腐蝕性環(huán)境使用）
安裝方式：徑向直接安裝連接螺紋 M20 × 1.5 （或其他螺紋尺寸）
等級(jí)：1.5級(jí)
外徑： 150mm
測(cè)量范圍：正壓：0.1MPa⋯⋯60MPa；
 　　　　　負(fù)壓：-0.1～0MPa,-0.1～2.4MPa。
工作條件：
環(huán)境溫度：-40～70℃
相對(duì)濕度：≤ 85%
工作壓力：使用溫度偏離 20 ± 5℃時(shí)，其溫 度附加誤差不大于 0.4%/10℃
 
滑線(xiàn)電阻發(fā)送器技術(shù)數(shù)據(jù)：
起始電阻：6～20 Ω
滿(mǎn)度電阻：340～400 Ω
接線(xiàn)端外加電阻：≤ 6V
外殼材質(zhì)：壓鑄合金鋁
接頭材質(zhì)：銅合金
波登管：銅合金
表盤(pán)：鋁，白地黑字
指針：鋁，黑色
玻璃：普通玻璃
 
YTZ Specifications
Medium: Gas or liquid, whice doesn’t corrode copper alloy (could be used in corrosion
   environments connected chemical seals.)
Mounting: Bottom connection direct thread M20 × 1.5 or other
Accuracy: 1.5%
Diameter: 150mm
Range: Positive pressure 0.1MPa⋯⋯60MPa；
Negative pressure -0.1～0MPa, -0.1～2.4MPa
Working condition:
Ambient temperature: -40～70℃
Relative humidity: ≤ 85%
Working pressure: When working temperature deviates from 20 ± 5℃. The additional temperature error shall not be more than 0.4%/10℃
Technical data of resistance tramsmitterStart resistance: 6～20 Ω
Full scale resistance: 340～400 Ω
Connection end additional resistance: ≤ 6V
Case: Cast aluminium alloy
Socket material: Copper alloy
Bourdon tube: copper alloy
Dial aluminum: white with black division
Pointer: Aluminium, black
Glass: Window glass
 
 接線(xiàn)示意圖 WIRING DIAGRAM