Bronkhorst FLOW-SMS Series Manual do Utilizador descarregar pdf (Página 11)

BRONKHORST HIGH-TECH B.V.

ThecontrolvalveusedintheFLOW‐SMSseriesisastandard,direct

operatedsolenoidvalve(normallyopenedornormallyclosed),

operatedthroughthePID‐controlfunctiononthepc‐boardof the

floworpressuremeter.Thediameteroftheorificeunderthe

plungerisoptimisedforthecustomer’sspecification.



9.17.057 page 11

Controllersorvalvesmaynotoperatecorrectly,ifprocessconditionsvarytoomuch,becauseofthe

restrictionoftheorificeinthevalve.



InstructionsforreplacingaMassFlowMeter(MFM)or

MassFlowController(MFC)module:

MFC

- Removal

EnsurethatthesystemisdepressurisedbeforetakingFlow

moduleapart.

Thepowermustbeoffwhenremovingtheelectricalconnectors.

Loosenthe4bolts(M4)withhexagonheadcounterclockwiseto

releasetheFlowmodule.



- Replacement

Replacethegasketsdependingonthetype:FS‐200CV2xAS‐108,

FS‐201CV1xAS‐115and1xAS‐108,FS‐202CV1xAS‐118and1xAS‐108.

Viton,EPDMorKalrez.

Allwettedpartshavetobeabsolutelyclean,don’tuseoilor

greaseandavoiddust!

ReplacetheFlowmoduleandtightentheM4boltswithhexagon

headbyturningclockwise,tightencrosswisewith2,0Nm.

Reattachtheelectricalconnector.

NowtheFlowmodulehastobetestedforleakageandfunction.

MFM



AvailableMassFlowController/MassFlowMetermodules



Type Type Nominal

Range

Description

Controller(MFC) Meter(MFM)  Range(basedonN2@1bara

FS‐200CV FS‐100C 005 0.06…3upto0,18…9mln/min

FS‐201CV FS‐101C 020 0.16…8upto0,6…30mln/min

FS‐201CV FS‐101C 050 0,4…20upto1,5…75mln/min

FS‐201CV FS‐101C 100 0,8…40upto3…150mln/min

FS‐201CV FS‐101C 200 1,6…80upto6…300mln/min

FS‐201CV FS‐101C 500 4…200upto15…750mln/min

FS‐201CV FS‐101C 1k0 8…400upto30…1500mln/min

FS‐201CV FS‐101C 2k0 16…800upto60…3000mln/min

FS‐201CV FS‐101C 5k0 0,04…2upto0,15…7,5ln/min

FS‐201CV FS‐101C 7k0 0,05…2.6upto0,2…10ln/min

FS‐202CV FS‐102C 10k 0.08…4upto0.3…15ln/min

FS‐202CV FS‐102C 20k 0,16…8upto0.6…30ln/min

FS‐202CV FS‐102C 35k 0,25…12.5upto1…50ln/min

2.13.4 Pressure modules

FLOW‐SMSpressuremeters/controllersrangefrom100mbarupto10bar,

measuringeitherabsolutepressureorgaugepressure,withaveryhighaccuracy

andrepeatability.Theinstrumentsareequippedwithadiaphragmbased

piezo‐resistivesensor.Pressurecontrollersareavailableasforwardcontroller

(P‐600series)andbackwardcontroller(P‐700series).

Theflowgoingthroughthepressurecontrollerdependsonupanddownstream

pressures,orificediameterofthevalveandthedensityofthefluid.

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