YOKOGAWA ADMAG TI Series

<5. Functions>
57
IM 01E21A02-03EN
NOTE
Payattentiontothefollowingpointswhensettingtheowratespan.
• Foralinewithasignicantowratechange,settheowratespantothemaximumowrate.
Iftheowrateexceedstheowratespan,theerroroftheowrate%increases.
• Foralinewithastableowrate,settheowratespantoapproximately1.5to2.0timesthe
normalowrate.
• Settheowrateforwhichtheowvelocityiscomparabletotherangefrom0.3to10m/s.
Checktheowvelocityusingthesizingdatadescribedinthegeneralspecications.Ifthe
owvelocityischeckedusingtheparameter,itdisplaysthevalueobtainedbyconvertingthe
speciedowratespantotheowvelocity.
NOTE
Besuretosettheowrateunitrstwhentheowrateunitanditsspanvaluearechangedatthe
same time.
5.1.6 Damping Time Constant Setting
Theowrate-relatedprocessvalue(owvelocity,volumetricowrate,massowrateand
calorie),thedampingtimeconstantforownoise(63.2%response)andthedampingtime
constantforAIFBoutputcanbespecied.Toreduceanoutputuctuationorchangethe
responsespeed,changethedampingtimeconstant(defaultvalue,3.0seconds).
Forapistonpump,etc.,thepulsingowofupto1Hzcanbemeasuredwithanoutputdamping
of 0.1 seconds.
Thesettingcanbeconguredwiththefollowingparameters.
 Flow rate-related process values/frequency
Menu path
Display Devicesetup►Detailedsetup►Provar►(seebelow)
F
OUNDATION
Fieldbus
DeviceConguration►STB►DeviceConguration►Conguration►Process
Variables►(seebelow)
Block
Name
Relative
Index
Parameter
Description
Display F
OUNDATION Fieldbus
STB 39 Velocity►DampAO/F Velocity►VelocityDamping
Speciesthedamping
timeconstantoftheow
velocity value/frequency
output.
STB 31 Volume►DampAO/F
VolumeFlow►VolumeFlow
Damping
Speciesthedamping
time constant of the
volumetricowrate
value/frequency output.
STB 35 Mass►DampAO/F
MassFlow►MassFlow
Damping
Speciesthedamping
time constant of the
massowratevalue/
frequency output.
STB 43 Calorie►DampAO/F Calorie►CaloricDamping
Speciesthedamping
time constant of the
calorie value/frequency
output(onlyavailable
forAXG,notforAXW).