Intelligent pressure transmitter structure and use features

Characteristics of intelligent pressure transmitter

1. With automatic compensation ability, can through the software of thermocouple sensor nonlinearity, temperature drift, drift of automatic compensation. Since diagnosis, after electrify to self-inspection of thermocouple sensor, to check each part of the thermocouple sensor is normal, and make a judgment. Convenient accurate data processing, automatic processing data according to internal applications, such as statistical processing, which can reduce abnormal values.

2. With functions of two-way communication. The microprocessor can not only receiving and processing thermocouple sensor data, but also the information feedback to the thermocouple sensor, so as to adjust and control the measurement process. For information storage and memory, it can store the characteristics of the thermocouple sensor data, configuration information and compensation characteristics, etc.

3. With functions of digital interface and output, output of the digital signal can be conveniently and computer and field bus connections.

smart pressure transmitter of

smart pressure transmitter is generally by thermocouple sensor, microprocessor, memory and modulus, d/a converter. Thermocouple sensor used to detect signal is measured, the materials used for manufacturers. Microprocessor is the core of intelligent transducer, is responsible for integrated processing of data, such as the detection signal linearization, reset, and functional operation range, working unit conversion and diagnosis and communication function. Memory used for storage of various constant for microprocessor calls, program and configuration of transmitter, are generally not erasable. Modulus, d/a converter is the analog signal and digital signal transformation, thermocouple sensor detection signal to the microprocessor must use AD converter, microprocessor, 4 ~ 20 ma output signals must be used d/a converters. Intelligent transmitter to output digital signal communication with DCS, all the way with a com (intelligent scene SFC) Or hand operator to commune with the transmitter. In addition, the intelligent transmitter has backup power supply, so as to avoid power failure data is lost in storage.