关键词: 温度变送器, 高精度, 双通道, 全类型信号, 电源隔离, 非线性补偿, 温场测量

Abstract: Temperature is one of the most important operational parameters in industrial and agricultural production process. Development of intelligent temperature transmitter can satisfy the demand for production and construction in the domestic petroleum, chemical, metallurgical and electric power sectors. Temperature transmitters of ZYW series are high-precision intelligent temperature transmitter that can be used in eight sophisticated technologies - small signal processing technology, isolated power supply technology, nonlinear compensation for temperature sensor, amplifier unit temperature compensation technology, indexing table of non-standard temperature sensor, intelligent HART communication technology, multi-type temperature signal input technology, dual signal input or average temperature and temperature differential measurement technology. The accuracy of the whole device reaches 0.1 percent while the accuracy for unit conversion reaches 0.05 percent. With a self-correcting function, it has a ±0.1 percent/5 years stability. The series has an independent intellectual property right and is the domestic leader in terms of product functions. It can be widely used for automatic temperature measurement in various industrial sectors.

Key words: temperature transmitter, high accuracy, dual channel, all-type signals, power supply isolation, nonlinear compensation, temperature field measurement