电容式压力变送器出现的故障都会引起变送器输出不正常或测量不准确，但经过细心检查，严格按照技术要求使用和安装，及时采取有效措施，问题都可以排除，对不能处理的故障，应将变送器送到实验室或生产厂家做进一步检查。

       Faults in the capacitive pressure transmitter can cause the transmitter output to be abnormal or the measurement is inaccurate,but after careful inspection,strictly use and install according to the technical requirements,take effective measures in time,the problem can be eliminated,and the fault can not be handled.The transmitter should be sent to the laboratory or manufacturer for further inspection.

       施工现场出现的故障，绝大多数是由于使用和安装方法不当引起的，归纳起来有几个方面。

       Most of the failures at the construction site are caused by improper use and installation methods.There are several aspects summarized.

       1、一次元件(孔板、远传测量接头等)堵塞或安装形式不对，取压点不合理。

       1.The primary component(orifice plate,remote transmission connector,etc.)is blocked or installed in the wrong form,and the pressure point is unreasonable.

       2、引压管泄漏或堵塞，充液管里有残存气体或充气管里有残存液体，变送器过程法兰中存有沉积物，形成测量死区。

       2.Leakage or blockage of the pressure guiding tube,residual gas in the liquid filling tube or residual liquid in the inflation tube,deposits in the process flange of the transmitter,forming a dead zone for measurement.

       3、变送器接线不正确，电源电压过高或过低，指示表头与仪表接线端子连接处接触不良。

       3.The transmitter wiring is incorrect.The power supply voltage is too high or too low.The contact between the meter head and the meter terminal is poor.

       4、没有严格按照技术要求安装，安装方式和现场环境不符合技术要求。

       4.It is not installed in strict accordance with technical requirements.The installation method and on-site environment do not meet the technical requirements.

      西安华恒仪表制造有限公司坐落于美丽的秦岭北麓比邻太平森林公园入口—西安市高新技术开发区科技企业加速器，主营西安单法兰液位计，西安双法兰液位计，西安磁致伸缩液位计，西安卫生型压力变送器,西安高精度压力变送器，hart475手操器,静压式液位计，投入式液位计，一个将科技企业由外延式扩张进入内涵式扩张的助推器。同时以西安仪表基地为依托，是专业从事工业自动化仪表及系统的研发、生产、销售和服务的高新技术企业。

       Xi'an Huaheng Instrument Manufacturing Co.,Ltd.is located in the beautiful Qinling Beijiao neighboring Taiping Forest Park entrance-Xi'an High-tech Development Zone Technology Enterprise Accelerator,mainly in Xi'an single flange liquid level gauge,Xi'an double flange liquid level gauge,Xi'an magnetic Telescopic liquid level gauge,Xi'an hygienic pressure transmitter,Xi'an high-precision pressure transmitter,hart475 hand-operator,static pressure level gauge,input level gauge,one will expand the connotation of technology enterprises from epitaxial expansion Expander booster.At the same time,relying on Xi'an Instrument Base,it is a high-tech enterprise specializing in R&D,production,sales and service of industrial automation instruments and systems.

       西安华恒仪表拥有一支卓越的高层次专业技术团队，公司现有员工108人，包括研发人员13人，客座教授3名，高级工艺师3人，高级工程师5人，工程技术人员23人，专职检验员6人。其中包括经验丰富的技术开发、工艺设计和质量管理人员。主要技术人员先后多次接受过美国ROSEMOUNT公司的技术培训，有三十多年的仪器仪表生产及研发经验。早在上世纪九十年代初期，已经开始致力于HART协议仪表的探索和研发，是国内智能仪表及HART协议技术的开拓者，领航者。近年来，公司又与西安交通大学、西北工业大学和西安理工大学等高校建立了紧密的技术合作关系，合作项目有油气两相流，多相流，高性能发动机测试，风洞试验装置等项目。

       Xi'an Huaheng Instrument has an excellent high-level professional technical team.The company has 108 employees,including 13 R&D personnel,3 visiting professors,3 senior craftsmen,5 senior engineers and 23 engineering technicians.6 full-time inspectors.These include experienced technical development,process design and quality management personnel.The main technical personnel have received technical training from ROSEMOUNT in the United States for many times,and have more than 30 years of experience in instrumentation production and R&D.As early as the early 1990s,it has been committed to the exploration and research and development of HART protocol instruments.It is the pioneer and leader of domestic intelligent instrumentation and HART protocol technology.In recent years,the company has established close technical cooperation with Xi'an Jiaotong University,Northwestern Polytechnical University and Xi'an University of Technology.The cooperation projects include oil and gas two-phase flow,multiphase flow,high-performance engine testing,wind tunnel test equipment and other projects.

       公司的主要产品有SMART斯玛特系列压力变送器、液位(界位)仪表、流量计、温度传感器和多参量变送器，产品计量资质，防爆资质齐全，整个生产系统通过ISO9000质量认证体系认证。研发的智能磁致伸缩液位变送器，双隔离静压式水准仪，风荷载变送器等产品获得多项发明，得到市场的一致好评。

       The company's main products are SMART Smart series pressure transmitter,liquid level(boundary)instrument,flow meter,temperature sensor and multi-parameter transmitter,product measurement qualification,complete explosion-proof qualification,the entire production system has passed ISO9000 quality certification.System Certification.The research and development of intelligent magnetostrictive liquid level transmitter,double isolation static pressure level,wind load transmitter and other products have won a number of inventions,which have been well received by the market.