Reliable point level monitoring and control switch for process applications

AMS Instrumentation and Calibration introduces a new point level
monitoring and control switch from Fluid Components International (FCI) for
process and plant engineers.

Designed to support high reliability application environments such as chemical
refining, food and beverage, oil and gas, electric power, metals and mining,
pulp and paper, and water and wastewater treatment among others, the high
accuracy FLT Series switch features dual trip points and relays, SIL 2 rating
for ultra-reliability and full Ex agency approvals on the complete instrument.

Point level monitoring and control are essential in many industrial
processes to prevent over-filling or under-filling, as well as to provide a
reliable ’empty’ notification. Accurate switching ensures continuous plant
operation while interruptions could lead to quality issues, safety problems,
regulatory issues and higher costs.

Providing dependable point level and interface sensing in liquid, gas or
foam, the FLT switch is ideal for heavy duty environments (FLT93S) and small
process connections requiring a fast, responsive switch (FLT93F). The point
level monitoring and control switch is also used for wet/dry detection, sump
level detection, high/low level alarm and control, interface control in
separation vessels, foam and sediment interface control, and agitation

Key features of the FLT93S point level monitoring and control switches
include ability to identify the interface between any type of media including
foam, emulsion layers, liquids and slurries; dual switch point option allowing
one instrument to control two different product interfaces; two or more
switches ideal for controlling product discharge and intake at specified points;
operable over a wide setpoint range in water from 0.003 to 0.9 MPS; level/interface
accuracy of ±6.4mm, and measurement repeatability of ±3.2mm; ability to
withstand operating temperatures from -40¡C to +177¡C; and an optional
configuration available for temperatures from -73¡C to +454¡C.

Built-in temperature compensation thanks to the advanced thermal
dispersion mass flow sensor in the FLT switch ensures repeatable and reliable
operation, even in extreme environments. This automatic compensation adjusts
the instrument for changes in operating environment temperatures to ensure the
trip points will remain accurate, preventing false alarms and improving
end-product quality, maximising safety and also allowing alarms to be set
within a narrower setpoint range.

The FLT switch is hydrostatically proof pressure tested to 240 bar (g)
at 21¡C. Derated with temperature, the maximum operation service recommended is
162 bar (g) at 260¡C. Higher pressure ratings are available with special
construction and test certification.

FCI’s FLT switches come with a wide selection of standard and custom
process connections. The electronic control circuit can be integrally mounted
with the sensing element, or located in a remote location. The standard
enclosure is made from a coated aluminium alloy, which allows use in ATEX
locations and is rated for NEMA Type 4X (IP66) environments. Stainless steel or
fibreglass enclosures are also available.

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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