With the advancement of instrument technology, differential pressure transmitters of various brands are developing in the direction of high precision and intelligence.

Differential pressure transmitters are widely used in factories. In order to ensure their normal operation and accuracy, regular inspection and calibration are necessary. A method for on-site calibration without removing the pressure guiding tube is now introduced.

Chongqing Yokogawa Instrument Co., Ltd. (Cys) was founded in 1995 by Yokogawa Electric Co., Ltd., Chongqing Chuanyi Automation Co., Ltd. and Yokogawa electric (China) Investment Co., Ltd., with a total investment of 34.2 million US dollars. Based on the enterprise philosophy of "quality first, pioneering spirit and social contribution", the company has sustained, healthy and rapid development.