<5. Functions>
87
IM 01E21A02-03EN
Block
Name
Relative
Index
Parameter
Description
Display F
OUNDATION Fieldbus
STB 102 Coef A1 Temperature Coef A1
Speciestheprimary
compensating rate.
STB 103 Coef A2 Temperature Coef A2
Speciesthesecondary
compensating rate.
The density correction calculation can be set using the following procedure.
(1) Settotheuseofthetemperature-correcteddensitybyreferringtoSubsection5.1.9.
(2) Setthefunctionoftheexternaltemperatureinputfunctiontothetemperaturebyreferringto
Section 5.4.
(3) SettherangehighlimitandlowlimitoftheexternaltemperatureinputbyreferringtoSection
5.4.
(4) SetthestandardtemperatureandstandarddensitybyreferringtoSubsections5.1.9and
5.1.10.
(5) Settheprimaryandsecondarycompensatingratesofthecompensationformula.
NOTE
Thedensitycorrectioncalculationisperformedonlywhenitems(1)and(2)abovearespecied.
Iftheyarenotspecied,thedensityisassignedtothexedvaluethatisspeciedinSubsection
5.1.9.
Example:
If the water density is corrected based on the temperature in the following conditions, the result is
obtained as shown below.
Exttemperatureinputrange=0.0to100.0°C,
Standarddensity=1000kg/m
3
,
Standardtemperature=20°C,
Primarycompensatingrate=-0.02,Secondarycompensatingrate=-3.9
F0424.aiTemperature [°C]
Density [kg/m
3
]
950
960
970
980
990
1000
10 20 30 40 50 60 70 80 90 100