WP401 series pressure transmitter using silicon piezoresistive sensors with the international advanced level, with high-precision electronic components, through a rigorous process assembled. Give full play to the technical superiority of the sensor, so WP401 series universal pressure transmitter with excellent technical performance. It is too strong anti-overload and impact resistance, temperature drift, high stability, high measurement accuracy. WP401A Series Universal pressure transmitter optional pressure sensor is a solid state pressure-sensitive chip built with stainless steel diaphragm fully welded stainless steel body. Steel interior perfusion silicone oil. The measured pressure acting on the diaphragm and transmitted to the sensitive chip by silicone oil. Sensitive chip through wires with a dedicated amplification circuit is connected to the transmitter. It utilizes the piezoresistive effect of semiconductor silicon materials to achieve pressure and electrical conversion. Since the electrical signal applied pressure sensitive Wheatstone bridge output chip has a good linear relationship, it is possible to achieve an accurate measurement of the pressure. wp401A pressure transmitter sensor output stable high sensitivity general strain sensor output is only about 10mv, and WP401A diffused silicon sensor full-scale output of about 100mv, interference and noise and other factors is relatively small, the resolution is greatly improved, near zero pressure no dead zone. WP401B pressure transmitter sensor high accuracy and good reproducibility WP401B diffused silicon piezoresistive pressure sensor realized by a sense of pressure, pressure transmission, electric conversion implemented by the same element, without intermediate transformation stage, no pressure hysteresis, no mechanical displacement deformation to ensure that the minimum repeatability and hysteresis error, good linearity, stability, reliability and long life. WP401C pressure sensor transmitter with good temperature characteristics WP401C transmitter thanks to laser trimming, compensation and other advanced computer technologies and ingenious control the spread of concentration to achieve full-scale temperature drift (temperature coefficient of sensitivity) from compensation. To overcome the large temperature coefficient of the semiconductor wafer defect itself, the transmitter zero and span drift achieve a higher level, to broaden the use of temperature zones. WP401 transmitter with high reliability and resistance to interference WP401 transmitter with a stainless steel with a special protective structure, design the lightning, anti-jamming, anti-overvoltage, over a range of flow and other means of protection, improved sealing corrosion and resistance to harsh working environment, perfectly suited to the need for general industrial measurement and control field.