Bronkhorst FLOW-SMS Series Manual do Utilizador descarregar pdf (Página 12)

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 12

InstructionsforreplacingaPressureMeter(PM)or

PressureController(PC)module:

- Removal

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

Pressuremoduleapart.

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

Loosenthe4boltswithhexagonheadcounterclockwise to

releasethePressuremodule.



- Replacement

Replacethegaskets2xAS‐108,Viton,EPDM

orKalrez.

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

greaseandavoiddust!

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

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

Replacetheelectricalconnector.

NowthePressuremodulehastobetestedforleakageand

function.

AvailablePressureController/PressureMetermodules

PressureModule Description

Modelnumber Function Smallestrange Highestrange

PS‐502C Meter 2..100mbar 0,2…10bar

PS‐602CV‐NC Controllerforward(NC) 5..100mbar 0,5…10bar

PS‐702CV‐NC Controllerback(NC) 20…100mbar 2…10bar



Pressurerange(FS) Indentificationinmodelkey

(bar) Absolute Relative

0,1‐0,35

350A 350R

0,35‐1,1

1k1A 1k1R

1,1‐6,0

6k0A 6k1R

6,0–21

21kA 21kR

PleasekeepinmindthatthepressureratingforFLOW‐SMSis10baronly.

Inpressurecontrolsystemsthesystemwidelydeterminestheresponsebehaviourofthecontrolloop.

Duringtestingthecustomersystemissimulatedascloselyaspossible.Insomecaseshowever

readjustmentisneededforoptimumperformanceunderactualconditions.

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