YOKOGAWA DPharp EJXC40A, Руководство пользователя

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<7. HART Communication>
7-46
IM 01C25W05-01EN
# Parameter name
Factory default
value
Description
27 Ref fP2 Value of fP2 obtained under steady state operation used as a reference
for blockage detection.
28 Ref fP2 Status Status of Ref fP2
29 Ref fP1 Value of fP1 obtained under steady state operation used as a reference
for blockage detection.
30 Ref fP1 Status Status of Ref fP1
31 Ref BlkF Value of BlkF obtained under steady state operation used as a reference
for blockage detection.
32 Ref BlkF Status Status of Ref BlkF
33 Ref DPAvg Value of DPAvg obtained under steady state operation
34 Ref DPAvg Status Status of DP Avg
35 Lim fDPmax See Table 7.3.2. Upper limit of differential pressure fluctuation (Ratio fDP) used for impulse
line blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
36 Lim fDPmin Lower limit of differential pressure fluctuation (Ratio fDP) used for impulse
line blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
37 Lim fP2max Upper limit of module 2 side pressure fluctuation (Ratio fP2) used for
impulse line blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
38 Lim fP2min Lower limit of module 2 side pressure fluctuation (Ratio fP2) used for
impulse line blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
39 Lim fP1max Upper limit of module 1 side pressure fluctuation (Ratio fP1) used for
impulse line blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
40 Lim fP1min Lower limit of module 1 side pressure fluctuation (Ratio fP1) used for
impulse line blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
41 Lim BlkFmax Upper limit of one-side blockage level (BlkF) used for impulse line
blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
42 Lim BlkFmin Lower limit of one-side blockage level (BlkF) used for impulse line
blockage detection.
This parameter can be entered only when Diag Mode is set to Stop.
43 Lim DPAvgmax Upper limit of DPAvg.
This parameter can be entered only when Diag Mode is set to Stop.
44 Lim DPAvgmin Lower limit of DPAvg.
This parameter can be entered only when Diag Mode is set to Stop.
45 Ref Lim fDPmin 7.0E-10 Lower limit of the average value of the sum of squares of differential
pressure fluctuation (Ref fDP) obtained in reference value measurement.
This is used to decide whether the reference value for impulse line
blockage detection is applicable.
This parameter can be entered only when Diag Mode is set to Stop.
46 Ref Lim fPmin 1.0E-09 Lower limit of the average value of the sum of squares of pressure
fluctuation (Ref fP2, fP1) obtained in reference value measurement.
This is used to decide whether the reference value for impulse line
blockage detection is applicable.
This parameter can be entered only when Diag Mode is set to Stop.
47 Ref Lim BlkFmax 0.5 Upper limit of the F value (Ref BlkF) obtained in reference value
measurement.
This is used to decide whether the reference value for impulse line
blockage detection is applicable.
This parameter can be entered only when Diag Mode is set to Stop.
48 Status group 15 Device status information related to the process
49 Status group 16 Device status information related to the process
50 CRatio fDP Compensated value of fDP used to make the monitoring of Ratio fDP
easier when the flow rate change is extremely large or small.
Sqrt (fDP / Ref fDP) X │ (Ref DPAvg / DPAvg) │
Diag DP Comp Compensation must be selected.