- 类型：
- 膜片压力表
简 介
电阻远传压力表通过仪表内部的滑动电阻发送器把被测值以电量值传至远离测量点的二次仪表上，以实现集中检测和远距离控制，此外本仪表能够同时就地指示压力，（便于现场工艺检查）。本仪表还可以与膜片隔离器（隔离体）连接，制成电阻远传隔膜压力表，可测量腐蚀性较强、黏度大、易结晶介质的压力。
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
仪表由一个弹簧管压力表和一个滑线电阻式传感器组成，当被测压力变化时，弹簧管端产生位移，一方面通过传动系统使指针在度盘上指示相应压力，另一方面带动电刷在电阻上滑行，使被测压力值的变化转换为电阻值的变化，并传至二次仪表上指示相应的压力。
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 主要技术参数
测量介质：对铜合金无腐蚀作用气体或液体（可与多类化学密封隔离器配接在各种腐蚀性环境使用）
安装方式：径向直接安装连接螺纹 M20 × 1.5 （或其他螺纹尺寸）
等级：1.5级
外径： 150mm
测量范围：正压：0.1MPa⋯⋯60MPa；
负压：-0.1～0MPa,-0.1～2.4MPa。
工作条件：
环境温度：-40～70℃
相对湿度：≤ 85%
工作压力：使用温度偏离 20 ± 5℃时，其温 度附加误差不大于 0.4%/10℃
滑线电阻发送器技术数据：
起始电阻：6～20 Ω
满度电阻：340～400 Ω
接线端外加电阻：≤ 6V
外壳材质：压铸合金铝
接头材质：铜合金
波登管：铜合金
表盘：铝，白地黑字
指针：铝，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
接线示意图 WIRING DIAGRAM