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NE89 Temperature Transmitter with Digital Signal Processing (Part 3)

1. Analog Output SignalThe measurement signal is mapped to a 4 to 20 mA linear current output signal within the set range.●Output Signal Refresh RateFor normal temperature measurement applications, a rate at which the output signal is refreshed at least once in 1 second is sufficient; for tim

NE89 Temperature Transmitter with Digital Signal Processing (Part 2)

1.Thermoresistance measurement●Thermoresistance input signal processingThermoresistance sensors are usually connected using a four-wire configuration, which consists of two wires for supplying driving current to the thermoresistance sensor and two wires for measuring the voltage across the th

NE 89 Temperature Transmitter with Digital Signal Processing (Part 1)

Temperature transmitters with digital signal processing have been used in a variety of industrial applications. The analog signals of thermal resistors or thermocouples are processed by them and provided to higher-level controllers. The controller applies the processed signals to the monitoring, con

Using HART Domestic Chip HT1200M to Implement Burst Mode of HART Equipment

Burst-Mode (burst mode) in HART devices is a high-speed data transmission mode, and its mode usually has several data sources. In data buses, burst mode usually becomes a channel designed to cater to one device.Generally speaking, burst mode is an optional mode for HART products, but its use i

Introduction to HART Protocol Burst Mode

1. Review of key points of HART protocolThe HART protocol is one of many fieldbuses suitable for process industries. The physical layer includes RS-485, FSK (Frequency Shift Keying), PSK (Phase Shift Keying), IEEE 802.15.4 (Industrial Wireless), IEEE 802.3 (Ethernet network), IR (infrared). Among th