Flowmeter offers PROFIBUS-DP option.
Press Release Summary:
FlexMASSter® ST98 Flowmeter provides process flow information, remote instrument health, and diagnostic status. Flowmeter's thermal mass sensing element provides accuracy of ±1% of reading plus ±0.5% of FS, with repeatability of ±0.5% of reading. Standard flow elements have adjustable insertion lengths and are available in sizes 2.6 to 120 in. PROFIBUS offers transmission rates up to 12 Mbaud in deterministic network.
Original Press Release:
FlexMASSter® ST98 Flowmeter Series Is Now PROFIBUS Enabled
High Accuracy Combined With PROFIBUS Speed and Savings
Chicago, IL-October 21, 2002--The highly accurate and repeatable FlexMASSter ST98 Flowmeter from FCI is now offered with the high-speed communication and cost savings of the PROFIBUS-DP protocol option. The ST98 Flowmeter joins the PROFIBUS community of devices, bringing the accuracy and performance of thermal mass flow sensing to process flow measurement.
Ideal for the petrochemical, food/beverage, pulp/paper, water treatment and other processing plants, the ST98 Flowmeter with PROFIBUS provides enhanced process flow information, advanced remote instrument health and diagnostic status. PROFIBUS is a digital communication protocol with years of proven experience and over 400,000 successful applications, with an estimated installed base of about 4,500,000 devices.
The ST98 Flowmeter's advanced thermal mass sensing element delivers precision measurements over a wide flow range. It features an accuracy of ±1% of reading plus ±0.5% of full scale. Highly consistent, the ST98 has a repeatability of ±0.5% of reading. Flowmeters from FCI detect flows ranging from as low as 0.25 SFPS for insertion unit configurations. In-line instruments measure even lower flow rates.
FCI's advanced packaging design allows easy access to termination points and communication ports; the flowmeter comes in integral and remote configurations. The ST98 is available in two classes of enclosure. One is weather-resistant; the second is weather resistant and explosion-proof, meeting standards for hazardous location use. Both enclosures are designed to resist corrosion. Standard signal output is 4-20mA.
The ST98's flow sensing element is comprised of two all-welded 316 stainless steel thermowells that protect resistance temperature detectors (RTDs). One RTD is heated relative to the other, and the temperature difference is proportional to the process flow rate. The standard flow elements have adjustable insertion lengths and are available in sizes 2.6 to 120 inches. The process connection is a ¾ inch NPT or flange compression fitting with a Teflon or stainless steel ferrule. Packing gland assemblies are available for easy installation and removal during normal operation.
PROFIBUS offers the benefit of high-speed communication, with transmission rates of up to 12Mbaud, in a deterministic network that is easy to expand. It also offers open integration through the OPC interface. A study conducted by NAMUR AK 3.5 (standardization committee of the instrumentation and control industry) indicates that PROFIBUS installations can achieve a cost savings of about 40% in planning, wiring, start-up and maintenance over conventional 4-20 mA installations.
Fluid Components Intl is a global company committed to meeting the needs of its customers through innovative solutions to the most challenging requirements for sensing, measuring and controlling air, gas, liquid, flow, level and temperature.
