No moving parts flow measurement solutions for small process line applications

AMS Instrumentation and Calibration offers flow meters and flow switches
based on advanced, ultra-reliable thermal dispersion flow measurement for small
process line applications. Plant and process engineers who need accurate flow
detection or measurement of air, gases, or liquids in smaller pipe sizes will
find diverse flow instrument solutions available from Fluid Components
International (FCI).

FCI’s ST75 Series and ST100L air/gas flow meters and FLT93L flow switch are
ideal for use in 0.25-2 inch (DN6 to DN50) pipe or tubing. These flow
measurement solutions excel in applications involving low flows, wide-turndowns,
dirty fluids, HazEx or harsh installations.

FCI’s flow instruments offer multiple advantages in a wide range of
applications such as plant, building or lab gas sub-metering, small inlet
air/gas feed lines for boilers, gas relief valve monitoring, chemical injection,
compressed air systems, cogen or CHP gas fuel measurement and control, sampling
systems, and more.

Many small process line applications are difficult to measure reliably
with high repeatability due to variations in temperature and pressure, as well
as wide flow rates. FCI’s thermal flow meters and switches are unaffected by,
or have on-board compensation for temperature and pressure changes, offer
superior detection of low flow rates, and provide 100:1 turndown as standard.

FCI’s highly reliable, small line air/gas flow meters and air/gas/liquid
flow switches combine state-of-the-art electronics technology with application
fluid-matched flow sensors and laboratory calibration in rugged packages
designed for the most demanding plant operating environments.

Thermal flow sensor technology developed by FCI relies on the
relationship between flow rate and the cooling effect. With no moving parts and
minimal invasiveness, these meters and switches provide a highly repeatable,
accurate, low cost, easy-to-install solution with virtually no maintenance
required over a long life.

FCI’s ST75 Series air/gas flow

FCI’s ST75 Series air/gas flow meters are ideal for line sizes from 6mm
to 51mm. Key features also include gas or air measurement accuracy up to 1% of
reading, ±0.5% full scale; wide 100:1 turndown; ability to measure from 0.01 to
950 NCMH depending on pipe size; electronics housed in a rugged, IP67 rated
enclosure with dual conduit ports in NPT or M20 threading; and dual 4-20 mA
outputs and a 500 Hz pulse output provided as standard.

Models ST75A and ST75AV include HART as well as NAMUR compliant 4-20 mA
outputs and a SIL compliance rating and 2-year warranty. Global agency
approvals for Div.1/Zone 1 HazEx installations include FM, FMc, ATEX, IECEx,
EAC and more.

FCI’s ST100L air/gas flow meters

The best-in-class ST100L air/gas flow meter is a next generation
instrument that combines feature- and function-rich electronics with advanced
flow sensors. Key features include spool piece design configuration in 25-50mm
tubing, schedule 40 and schedule 80 piping; ability to measure air/gas flows
from 0.01 to 3.140 Nm³/h with superior accuracy to ± 0.75% reading, ± 0.5% full
scale, and repeatability of ± 0.5% reading; all-welded design preventing leakage
when used with volatile gases such as hydrogen; and SIL compliance.

Global approvals include FM, FMc, ATEX, CE, CSA, IECEx, EAC, NEPSI and

FCI’s FLT93L flow switches

The FLT93L flow switch is a dual function, dual trip point/ alarm point
precision switch, field settable for trip point on flow rates and temperature.
Key features include setpoint range of 0.015 to 50 cc/sec for water-based
liquids, 0.033 to 110 cc/sec for hydrocarbon-based liquids, and 0.6 to 20,000
cc/sec for air and gases; trip point accuracy of ± 0.5% reading or ± 0.04 fps (±
0.012 mps) (whichever is higher) in liquids and ± 0.5% reading or ± 0.06 mps
(whichever is higher in air or gases); long service life in rugged, harsh
operating environments; aluminium and stainless steel IP67 rated housings; and HazEx
agency approvals for FM, FMc, ATEX, IECEx, EAC, Inmetro and NEPSI, also meeting
CRN and European PED, and SIL 2 compliance.

The FLT93L flow switch is available in numerous wetted materials and
process connection options, and has universal DC/AC power supply. It carries an
industry-leading three-year warranty.

For further
information, please visit the AMS Instrumentation and Calibration website or call 03-9017 8225, or
Freecall (NZ) 0800 442 743.

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