YOKOGAWA DPharp EJX***A Series User Manual

<Appendix2. ILBD Check List>
A2-5
IM 01C25T01-06EN
Checklist (5/5)
No. Items Parameters Result Example
10-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, fSPl, fSPh, BlkF,
and DPAvg after the certain time,
(Diag Period X Diag Supp Count), passed.
*: Record the value after checked that the
status is “GOOD”.
fDP* 7.48562E-09
fSPh* 7.14085E-09
For the case that the low-pressure side value is
closed;
• Record the values of fDP, fSPl, fSPh, BlkF,
and DPAvg after the certain time,
(Diag Period X Diag Supp Count), passed.
*: Record the value after checked that the
status is “GOOD”.
fDP* 7.48562E-09
fSPI* 7.23277E-09
• 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 L
 
Large Fluct H
 
L Side Blocking
 
H Side Blocking
 
B Blocking
 
Invalid Ref F
 
Invalid Ref SPH
 
Invalid Ref SPL
 
Invalid Ref DP
 
ILBD over range
 
• Check that the alarm of “B Blocking” is not
generated.
Diag Error
B Blocking
 

YOKOGAWA DPharp EJX***A Series Specifications

General

Brand	YOKOGAWA
Model	DPharp EJX***A Series
Category	Transmitter
Language	English