Instrument and plant engineers responsible for managing processes with a wide range of hydrogen gas applications will find the ST100 Series Thermal Flow Meter from Fluid Components International (FCI) provides precision mass flow measurement in a no-moving parts instrument featuring compliance with the necessary major safety approvals worldwide.
Hydrogen (H2) is one of the fundamental building blocks in the petrochemical industries with many applications.
The manufacture of hydrogen gas typically requires the refining of methane or other light hydrocarbons from natural gas or oil. Light hydrocarbon gas is mixed with steam and then the process continues with a complex series of steps that includes heating in a high temperature furnace to create a chemical reaction, which eventually results in hydrogen gas. Throughout this process, accurate flow measurement is essential with a rugged and reliable air/gas meter.
The ST100 Series Flow Meter is ideal for hydrogen gas production processes and other industrial applications of H2. Offering direct gas flow measurement, no additional sensors or flow calculating devices are required for measurement. Its no moving parts design virtually eliminates wear, breakage and maintenance.
The ST100 Flow Meter can be calibrated to measure H2 or virtually any process gas, including wet gas, mixed gases and dirty gases. The basic insertion style air/gas meter features a thermal flow sensing element that measures flow from 0.25 to 1000 SFPS (0.07 NMPS to 305 NMPS) with accuracy of ±0.75 percent of reading, ±0.5 percent of full scale. With the ST100 meter, H2 also can be measured safely at high flow rates from 0 to 6,600 lb/hr (0 to 3,000 kg/hr) at 29 to 87 psi.
Users can choose multiple communication options: 4-20 mA analog, frequency/pulse, or certified digital bus communications such as HART, Foundation Fieldbus, Profibus PA or Modbus RS485.
This meter offers a graphical, multivariable backlit LCD display. Its readout continuously displays all process measurements and alarm status for easy on-site viewing by technicians, and it can query for service diagnostics.
The ST100 meters utilize constant power thermal mass flow sensing technology that measures flow with 100:1 turndown in ranges from 0.006 to 1850 SCFM [0.01 to 3140 NCMH]. The transmitter/electronics can be integrally mounted with the flow body or may be remote mounted to 1000 feet [305m] away. The transmitter enclosure is NEMA4X/IP67 rated.
FCI products undergo rigorous agency testing and obtain their approvals on the entire instrument, not just the enclosure. Approvals available for the ST100 Flow Meter include: FM, FMc, ATEX, IECEx, EAC/TRCU, CPA, NEPSI, InMetro, and CE approved.