Trade.Information

Product Name: Remote-sealed type of Pressure Transmitters Model STU940

Product Description

OVERVIEW: - The ST3000 Smart Transmitter is a microprocessor-based smart transmitter that features high performance and excellent stability. Capable of measuring gas, liquid, and vapor pressures, and liquid levels, it transmits 4 to 20 mA DC analog and digital signals according to the measured differential pressure. It can also execute two-way communications between the SFC (Smart Field Communicator) or HART® 275 communicator, and, via DE protocol, with the TDCS3000 or 3000X and a database, thus facilitating self-diagnosis, range resetting, and automatic zero adjustment. Remote-sealed pressure transmitters are suitable for the measurement of process fluid pressures (pressures, oil levels, etc.) of process fluids that are highly corrosive, tend to condense, precipitate metal, etc. FEATURES: - Excellent stability and high performance: •Long-term stability is proven in 500,000 installations worldwide. • Unique characterization and composite semiconductor sensors realize excellent temperature and static pressure characteristics. A diverse lineup: • A diverse flange lineup, ranging from small diameter 1.5 inch (40 mm) and 2 inches (50 mm) to 3 inches (80 mm), is available to meet user requirements. • A wide variety of corrosion-resistant materials for wetted parts is also available. Function to correct the temperature of the fill fluid of the capillary section: Changes in the density of the fill fluid caused by temperature fluctuations are calculated, and the output is corrected accordingly. This functionsubstantially reduces (to 1/5 - 1/10) the effect of seasonal fluctuations in temperature. Remote communication: • Either analog output (4 to 20 mA DC), or digital output (DE protocol) is possible. • Two-way communication using digital output facilitates self-diagnosis, range resetting, automatic zero adjustment, and other operations. •HART® protocol communication is available.(Option) APPLICATION: - Petroleum / Petrochemical / Chemical: For the measurement of liquid levels including corrosive fluids at high temperatures, and high temperatures under vacuum Electric power / City gas / Other utilities: For measurement applications that require high degrees of stability and accuracy. Pulp and paper: For lines that need transmitters resistant to chemical liquids,corrosive fluids and th e like. Iron and steel / Nonferrous metal / Ceramics: For lines that require stable measurement under strictly controlled (temperature, humidity, etc.) conditions. Machinery / Shipbuilding: For lines that require stable measurement under strictly controlled (temperature, humidity, vibration, etc.) conditions. FUNCTIONAL SPECIFICATIONS: - Type of protection: JIS C0920 watertight: NEMA3 and 4X JIS F8001 class 2 watertight: IEC IP67 FM Explosionproof approval: Explosionproof for Class I (Gas, steam), Division 1,Group A, B, C, D Dust-ignition fo r Class II (Inflammable dust), Division 1, Group E, F, G Nonincendive for Class I, Division 2, Group A, B, C,D FM Intrinsically safe approval Intrinsically safe for Class I, II, III, Division 1, Group A, B, C, D, E, F, G ATEX Flameproof approval Certificate number: INERIS99ATEX0010 X II 2 GD EExd IIC T6 at -20 < Ta mb < +60°C ATEX Intrinsic safety Certificate number: KEMA03ATEX1225 X II 1 G EEx ia IIC T4 at -20 < Tamb < +60°C Electrical data: Ui = 30V Ii = 100 mA Pi = 1W Ci = 3 nF Li = 0.5 mH SPECIAL CONDITIONS FOR SAFE USE (X) Because the enclosure of the Smart Pressure Transmitter is made of aluminium, if it is mounted in an area where the use of category 1 G apparatus is required, it must be installed such, that, even in the event of rare