YOKOGAWA DPharp EJXC40A, Руководство пользователя

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<Appendix 2. ILBD Check List>
A2-5
IM 01C25W05-01EN
Checklist (5/5)
No. Items Parameters Result Example
9-b Simulation of Blockage detection operation
• Close completely the valve for the side where
the alarm of Invalid Reference Value is not
generated.
For the case that the high-pressure side value is
closed;
• Record the values of fDP and fP1 after the
certain time,
( Diag Period X Diag Supp Count ), passed.
*: Record the value after checked that the
status is “GOOD”.
fDP*
5.48562E-08
fP1*
7.14085E-11
For the case that the low-pressure side value is
closed;
• Record the values of fDP and fP2 after the
certain time,
( Diag Period X Diag Supp Count ), passed.
*: Record the value after checked that the
status is “GOOD”.
fDP*
3.48562E-08
fP2*
1.12328E-10
• Record the status of Checkbox in Diag
Option .
• Check that the alarms status of “B Blocking” is
set.
Note: If the alarm of “ILBD over range” is generated,
the valve may be closed too much tightly. Open
valve a little and record the updated status of the
parameters.
Diag Option
A Blocking
 
Large Fluct Pres 2
 
Large Fluct Pres 1
 
Pres 2 Side Blocking
 
Pres 1 Side Blocking
 
B Blocking
 
Invalid Ref BlkF
 
Invalid Ref Pres 1
 
Invalid Ref Pres 2
 
Invalid Ref DP
 
ILBD over range
 
• Check that the alarm of “B Blocking” is not
generated.
Diag Error
B Blocking
 