Bronkhorst FLOW-SMS Series Manuel d'utilisateur Page 12

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BRONKHORST HIGH-TECH B.V.
ThecontrolvalveusedintheFLOWSMSseriesisastandard,direct
operatedsolenoidvalve(normallyopenedornormallyclosed),
operatedthroughthePIDcontrolfunctiononthepcboardof the
floworpressuremeter.Thediameteroftheorificeunderthe
plungerisoptimisedforthecustomer’sspecification.
9.17.057 page 12
InstructionsforreplacingaPressureMeter(PM)or
PressureController(PC)module:
- Removal
Ensurethatthesystemisdepressurisedbeforetaking
Pressuremoduleapart.
Thepowermustbeoffwhenremovingtheelectricalconnectors.
Loosenthe4boltswithhexagonheadcounterclockwise to
releasethePressuremodule.
- Replacement
Replacethegaskets2xAS108,Viton,EPDM
orKalrez.
Allwettedpartshavetobeabsolutelyclean,don’tuseoilor
greaseandavoiddust!
ReplacethePressuremoduleandtightentheM4boltswithhexagon
headbyturningclockwise,tightencrosswisewith2,0Nm.
Replacetheelectricalconnector.
NowthePressuremodulehastobetestedforleakageand
function.
AvailablePressureController/PressureMetermodules
PressureModule Description
Modelnumber Function Smallestrange Highestrange
PS502C Meter 2..100mbar 0,2…10bar
PS602CVNC Controllerforward(NC) 5..100mbar 0,5…10bar
PS702CVNC Controllerback(NC) 20…100mbar 2…10bar
Pressurerange(FS) Indentificationinmodelkey
(bar) Absolute Relative
0,1‐0,35
350A 350R
0,35‐1,1
1k1A 1k1R
1,1‐6,0
6k0A 6k1R
6,021
21kA 21kR
PleasekeepinmindthatthepressureratingforFLOWSMSis10baronly.
Inpressurecontrolsystemsthesystemwidelydeterminestheresponsebehaviourofthecontrolloop.
Duringtestingthecustomersystemissimulatedascloselyaspossible.Insomecaseshowever
readjustmentisneededforoptimumperformanceunderactualconditions.
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