fc i flow switch guide

7/27/2019 Fc i Flow Switch Guide

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Reliabil ity

Accuracy

Performance

F C I f l o w s w i t c h g u i d e


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eliability, accuracy and performance are the keyproduct features required by FCI customers for

their flow, level and temperature switch applications.

This Selection Guide identifies FCIs flow switch products

with their unique performance features to help you easilyselect the best model for your application.

Fluid Components Internationals

line of flow, level and

temperature switches

U 316 stainless steel with nickel alloy braze

U Suitable for light industrial locations

U Comprehensive 1-year warranty

RF83 Seriesinsertion flow switch is the only thermal device capableof detecting reverse flow for any application. Standard product

features include, but are not limited to:U 316 stainless steel with nickel alloy braze

U Proprietary reverse flow sensor assembly design

U Dual switch point electronics with fail-safe alarms

U Suitable for hazardous locations


12-64B BASIC Seriesinsertion flow switch offers an economicalinstrument for low flow detection in liquids, gases and slurry withsame-day shipments available. Standard product features include,but are not limited to:

U 316 stainless steel with nickel alloy brazeU External control system can be actuated from DPDT relay

U Suitable for hazardous locations

U Global hazardous area system approvals

U Same day shipments


Reliability

FCI has an established worldwide reputation for the design andmanufacture of precision high performance flow, level and tempera-

ture instrumentation. With reliability second to none, the companyhas a global installed instrument base exceeding 250,000 units forcritical customer applications in liquid, gas and slurry processes.FCI is ISO 9001 certified and exclusively features a world class NISTflow laboratory servicing all types of process fluids and gases.Sample calibration fluids include:U Water deaerated and de-mineralized

U Solvents and cleaning fluids

U Oil 30 wt, diesel and hydraulic

U Fuel JP4, JP5, JP8 and others

U Sanitary milk, juice and creams

U Air and gases hydrocarbons and mixed gases

Flow SwitchesFLT93 FlexSwitch Seriesrepresent FCIs most flexible androbust family of flow, level and temperature switches for liquid,gas or slurry services. Standard product features include, butare not limited to:U Insertion and in-line configurations

U All welded 316L stainless steel with optional exoticmaterials/special coatings for extreme enviornments

U Extended temperature and pressure ranges

U Temperature compensation for industry leading accuracyand repeatability performance

U Field configurable flow/level/temperature alarms and inputpower settings

U System fail-safe setup configurability

U Dual analog outputs


U Nuclear qualified


FS2000 Nutec Seriesswitches replace mechanical technologiessuch as paddle and float devices in liquids, gas and slurry while

offering superior flow range sensitivity. Models FS2000L andFS2000H feature patented boundary layer sensing to extend flow detec-tion range. Standard product features include, but are not limited to:U Insertion and in-line configurations

U All welded 316L stainless steel or 304/305 stainless steel

U High purity surface finishes to 10 Ra optional

U Patented non-intrusive design

U Temperature compensation for industry leading accuracyand repeatability performance

U 2 wire loop power or SDPT relay alarm with NPN collector



FR73B and FR78B BASIC Series inline flow switches offer asmall compact instrument package weighing as little as 2.5 ouncesand detecting ultra low flow rates from 0.00016 cc/sec in liquidsand 0.0167 cc/sec in air or gases. Unique product features include,but are not limited to:U FR73B provides a precision linear analog output signal for

extremely low flow rates in either direction. This instrument isideal for chemical injection, gas chromatography, and fluid sampling

U FR78B provides low flow rate sensitivity with fast-response and

is ideal for OEM applications


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Accuracy and Temperature Compensation

FLT93 and NuTec Series switches are precision temperaturecompensated to insure the accuracy of factory and field setalarms when installed in dynamic process applications.

Accuracy combined with temperature compensation results in:U Preventing false alarms or alarm failure

U Maximizing operator and process safety

U Having the option to set alarms within a narrow set point range

The Flow Curves graph (right) illustrates how temperaturecompensated flow switches will not experience signal drift duringtemperature changes. Whereas a non-temperature compensatedflow switch experiences signal drift (as indicated by the red arrow)causing alarm failure.

FLT93S

FLT93F

FLT93C

FS2000

FS2000H

RF83

12-64B

FLT93L

FS2000L

FR73B

FR78B

(fps)

Air

(sfps)

(cc/sec)

(fps)

(cc/sec).01 0.1 1.0 10 100 1K 10K .01 0.1 1.0 10 100 1K 10K .01 0.1 1.0 10 100 1K 10K

(cc/sec)

0.015 to 0.5 0.01 to 2.0 1.0 to 125.0

0.5 to 100.0

0.25 to 120.0

0.25 to 120.0

0.25 to 120.0

1.0 to 40.0

9.4 to 161K

0.6 to 20K

0.0167 to 16.7

4.0 to 15

0.1 to 2.0

0.01 to 5.0

0.01 to 5.0

0.01 to 10.0

0.033 to 110.0

0.00067 to 0.033

0.05 to 25.0

0.1 to 3.0

0.01 to 3.0

0.01 to 3.0

0.05 to 0.5

1.9 to 5390 1.9 to 8980

0.015 to 50.0

0.00016 to 0.021

0.08 to 2.25

Water Hydrocarbons

0.1 to 10.0 0.2 to 20.0 0.25 to 750

Switch Point Range

2.00

1.75

1.50

1.25

1.00

0.75

VoltageOutput,

Vdc

0 1 2 3 4

fps

51F [10.6C]76F [24.4C]139F [59.4C]

signal stabilitywith temperature compensation

signal driftwithout temperature

compensation

Flow Curves

Flow Switch Selection Guide


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= yes x = core strength

U No moving parts

U High repeatability and accuracy

U All welded construction

U Exotic alloys and coatings

U Very low/very high flow rates

U Fast response

U Insertion and inline

Electronics Performance Features Sensor Element Performance Features

System fail-safe

Optional hermetically sealed relays

Factory or field set switch point

Simultaneous dual analog output

Dual SPDT or single DPDT relay

Field configurable power selection and relay probes

Field verification/calibration

7

6

4

3

2

1

5

1

2

3

4

5

6

7


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Operating Theory

Thermal Dispersion Theory of Operation:The typical sensing element contains two thermowell-protectedplatinum resistance temperature detectors (RTD's). One RTD isheated and the other RTD senses the process temperature. The

temperature difference between the two RTD's is related to theprocess flow, level or interface medium. Higher flow rates ordenser media cause increased cooling of the heated RTD and areduction in the RTD temperature difference.

Flow & Level Switch ApplicationsTank inlet flow detection

High level detection

Low level detection

Low flow pump protection

Lube oil flow detection

Seal leak flow detection

Lube oil bearing flow detection

Chemical injection flow monitoring

Level and interface detection

Off-gas flow detection

10

9

8

7

6

5

4

3

2

1

1

2

3

4

5

6

7

8

9

10

HeatedSensor

UnheatedSensor

T

Other Typical ApplicationsU Relief valve leak detection

U Flare gas flow detection

U HVAC flow monitoring

U Drain line flow detection

U Interface control in separation vessels

U Temperature alarm detection

U High flow or level alarms

U Flash or boiling point detection

U Sampling system flow detection and validation

U Reverse flow detection and monitoring


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Rated #1 in Customer Care and Quality

Rated #1 annually in the Control Magazine Reader Poll

24x7x365 customer service toll-free

ISO 9001 certified

World class NIST flow laboratory

FM, ATEX, Cenelec, CSA, CRN system approvals and otherglobal approvals such as CPA (China), SAA (Australia),JIS (Japan), CCE (India)

Flow, level and temperature instrumentation marketinnovator and leader for over 40 years

Industry acclaimed product warranty program

Worldwide Web: www.fluidcomponents.com1755 La Costa Meadows Drive, San Marcos, California 92078 USA | Phone: 760-744-6950* | Toll free: 800-854-1993 | Fax: 760-736-6250*

European Office: Persephonestraat 3-01 5047 TT Tilburg, The Netherlands | Phone: 31-13-5159989 | Fax: 31-13-5799036

*Please note: FCI area code changes from 760 to 442 effective 01/01/09

FCI is ISO 9001 Certified / Conformance to AS9000

Fluid Components International

Fluid Components International (FCI) hasestablished a worldwide reputation for thedesign and manufacture of precision highperformance flow, level and temperature

instrumentation. With reliability second tonone, FCI has placed over 250,000 units inthe field, covering the full range of liquids,gas and slurry process requirements sincethe introduction of their first flowswitch/monitor in 1964.

FCIs products support some of the worldsmost demanding processes in industriessuch as food & beverage, pharmaceutical, chemical, oil & gas, pulp & paper, power & energy, water & wastewater, nuclear, aerospace,military and many others. Customers rely on FCIs broad range of instrumentation and application solutions that range from standardoff-the-shelf devices to customized engineered systems.

FCIs renowned global leadership in Thermal Dispersion technology guarantees product innovation, value and satisfaction to each ofits customers. The companys dedication to supply the highest quality flow, liquid/level interface and temperature instrumentation isextended throughout companys international operations.

W h y b u y F C I ? I

Doc. No. 02MK011519B Copyright 2004 by Fluid Components International LLC. All rights reserved. Subject to change without notice.0708 5K

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