As SmartLin the absolute pressure and static pressure and temperature compensation sensor chip combine to provide high measurement accuracy and stability under static pressure and temperature over a wide range. SmartLine been fully tested for compliance with Experion? PKS standard, available to ensure the highest level of compatibility and integration capabilities. SmartLine products can easily meet the most demanding requirements of pressure measurement applications. Best-in features: ● precision calibration range of up to 0.065% ● Stability: 0.02% of full scale, kept for five years ● Automatic temperature compensation ● turndown ratio 100: 1 ● fast response time of 100ms ● Alphanumeric display ● External zero, span and configuration features ● supply polarity any connection ● Perfect self-diagnostic function ● Based on ANSI / NFPA 70-202 and ANSI / ISA 12.27.0 integrated temperature transmitter module dual seal design to ensure maximum security ● Standard configuration is fully in line with SIL2 / 3 requirements. ● Fully modular design wire classification: two-wire system: thermal resistance at both ends of a wire connected to each lead-wire resistance signal is called: This lead is simple, but there must be due to the connection wire lead resistance r, r size and length of the wire material factors relating to, so this method is applicable only lead to less accurate measurement occasions; three-wire: Connect one end of the lead in the thermal resistance of the base and the other end connected to the two leads the way called three-wire, in this way usually associated with the bridge supporting the use of temperature transmitters STT25, can better eliminate the effects of lead resistance, industrial process control most commonly used; four-wire system: the root of the thermal resistance of the two the two ends of the connecting wires is called four-wire system, which the two leads provide a constant current I is thermal resistance, the R into a voltage signal U, and then through the other two leads to U lead to the second instrument. Seen this way can lead to completely eliminate lead resistance effect, mainly for high-precision temperature testing. RTD three-wire connection. Three-wire connection to eliminate measurement errors caused by lead resistance. This is because the measurement of thermal resistance of the circuit is generally unbalanced bridge. Thermal resistance as a bridge arm resistance of the bridge, connecting wires (from the thermal resistance to the control room) has become part of the bridge arm resistance temperature transmitter, this part of the resistance is unknown and with changes in ambient temperature, resulting in measurement errors. Three-wire integrated temperature transmitters, wires connected to a power supply terminal of the bridge, the other two are respectively connected to the thermal resistance of the bridge where the arm and the adjacent bridge arm, thus eliminating wire line resistance band to measurement error. Rail temperature transmitter, China-Technology (certification), temperature transmitters provided by Jinan-Technology Limited. Jinan Huahui Technology Co., Ltd. (www.cnhuahui.com/) Shandong Jinan, pressure meters leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. - Technology leader in China with the staff warmly welcome all inquiries negotiations to create Hua Hui Technology better future.