Trade.Information

Product Name: JTD Series of Differential Pressure Transmitters Model JTD910A/920A/930A/960A/921A/931A/961A

Product Description

OVERVIEW: - The ST3000 ACE Smart Transmitter is a microprocessor-based smart transmitter that features high performance and excellent stability. Capable of measuring gas, liquid, and vapor flow rates, 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), and, via DE protocol, with the TDCS3000 or 3000X and a database, thus facilitating self-diagnosis, range resetting, and automatic zero adjustment. FEATURES: - Excellent stability and high performance: • Long-term stability has been proven in 500,000 installations worldwide. • Unique characterization and composite semiconductor sensors realize excellent temperature and static pressure characteristics. Wide measuring range (rangeability): • A wide measuring range is available from a single model. This feature is highly effective in taking measurements over a wide range and reducing the need for reserve units. The measuring range of the model JTD920A, for example, is 0.75 to 100 kPa (rangeability = 1 : 135). A diverse lineup: • A wide range of models is available to meet user requirements. They include micro-differential pressure, standard differential pressure,high differential pressure, standard differential pressure/high static pressure, and high differential pressure/high static pressure models. • A wide variety of corrosion-resistant materials for wetted parts is also available. Multiprotocol communication: • Either analog output (4 to 20 mA DC), analog FSK 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. Full after-sales service program: • A wide variety of specialized replacement kits is provided to meet customers' needs when replacing Yamatake transmitters or transmitters from other companies. • From product delivery to replacement, we will service all your needs. Our nationwide service network provides all the backup you require, including trial operation support and regular maintenance. APPLICATION: - Petroleum / Petrochemical / Chemical: • For strict flow control in combination with orifice plates • For measuring pressures and liquid levels in pipes and tanks Electric power / City gas / Other utilities: • For measurement applications that require high degrees of stability and accuracy Draft range applications such as semiconductor equipment manufacturing / Clean rooms: • For applications that require highly stable, accurate measurement Pulp and paper: • For lines that need transmitters resistant to chemical liquids, corrosive fluids and the like. Iron and steel / Nonferrous metal /Ceramics: • For highly stable, accurate measurements such as furnace pressure measurement • 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, etc.)conditions SPECIFICATIONS: - Output / Communication: Analog output (4 to 20 mA DC) Analog FSK output (4 to 20 mA DC) (Frequency shift keying signal transmission system) Digital output (DE protocol) Supply voltage and load resistance: 10.8 to 45V DC. A load resistance of 250 or more is necessary between loops. Fill Fluid: Silicone oil for general purpose models Fluorine oil for oxygen and chlorine models Ambient temperature range: Normal operating range -40 to 85°C for general purpose models -15 to 65°C for general purpose model (JTD910A) -10 to 75°C for oxygen and chlorine models -20 to 70°C for models with digital indicators Operative limits -50 to 93°C for general purpose models -40 to 70°C for general purpose model (JTD910A) -40 to 80°C for oxygen and chlorine models -30 to 80°C for models with digital indicators JIS special explosion-proof models: -20 to 60°C JIS intrinsically safe models: -10 to 60°C Temperature ranges of wetted parts: Normal operating range -40 to 110°C for general purpose models -10 to 75°C for oxygen and chlorine models Operative limits:: -50 to 115°C for general purpose models -40 to 80°C for oxygen and chlorine models JIS special explosion-proof models: -20 to 110°C JIS intrinsically safe models: -10 to 100°C Ambient humidity range: 5 to 100% RH Stability against supply voltage change: ± 0.005% F.S./V Lightning protection: Peak value of voltage surge: 100 kV Peak value of current surge: 1000A Dead time: Approximately 0.4 sec. Damping time constant: Selectable from 0 to 32 sec. in ten stages Waterproof / Dustproof structure: JIS C0920 watertight: NEMA3 and 4X JIS F8001 class 2 watertight: IEC IP67 Explosion-proof structure: JIS special explosion-proof models: (Exd II CT4X) JIS intrinsically safe models: (i3aG4)