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Product Name: Remote-sealed type of Pressure Transmitters Model STH920/STH940/STH960/STH980

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, and liquid levels, it transmits 4 to 20 mA DC analog and digital signals according to the measured 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 pressures (pressures, liquid 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 range of models, including those for general purposes, high-temperature, and high temperature and high-vacuum service, is available to meet user requirements. In addition, the working temperature range of general purpose models has been expanded to 180°C maximum to allow you greater freedom instrumentation. • 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: Change in the density of the fill fluid caused by temperature fluctuations are calculated, and the output is corrected accordingly. This function substantially 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. • For the measurement of liquid levels in small tanks. 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 the like. • For the measurement of liquid levels in small tanks. 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), Div ision 1, Group E, F, G Suitable for Class III (inflammable fiber), Division 1 9 40 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 incidents, ignition sources due to impact and friction sparks are excluded.