Yokogawa EJX930A - Manual (Page 29)

<4. Diagnostics>
4-4
IM 01C25R05-01EN
Integral
Indicator
DTM
display
Status
group
Cause Countermeasure
Value and Status (Data Quality and Limit Status)
Differential
Pressure
(DP)
Static
Pressure
(SP)
External
Temperature
(ET)
DP % SP % ET %
AL.35
P. HI
P high
alarm
5 Input pressure
exceeds
specified
threshold.
Check input. Value:
Measured value
Status:
Good and Not Limited
(0xC0)
Value:
Measured value
Status:
Good and Not Limited
(0xC0)
AL.36
P. LO
P low
alarm
AL.37
SP. HI
SP high
alarm
Input static
pressure
exceeds
specified
threshold.
AL.38
SP. LO
SP low
alarm
AL.43
ET. HI
ET high
alarm
8 Input external
temperature
exceeds
specified
threshold.
AL.44
ET. LO
ET low
alarm
AL.50
P. LRV
Illegal P
LRV
6 Specified value
is outside of
setting range.
Check settings
and change
them as
needed.
Value:
Measured value
Status:
Good and Not Limited
(0xC0)
Value:
Hold value
Status:
Bad and
Constant
(0x30)
Value:
Measured value
Status:
Good and Not Limited
(0xC0)
AL.51
P. URV
Illegal P
URV
AL.52
P. SPN
Illegal P
SPAN
AL.53
P. ADJ
P SPAN
trim err
Adjust settings
and change
them as
needed.
Value:
Measured
value
Status:
Poor
Accuracy
and Not
Limited
(0x40)
Value:
Measured value
Status:
Good and Not Limited
(0xC0)
Value:
Measured
value
Status:
Poor
Accuracy
and Not
Limited
(0x40)
Value:
Measured value
Status:
Good and Not Limited
(0xC0)
P ZERO
trim err
AL.54
SP. RNG
Illegal SP
LRV
Check settings
and change
them as
needed.
Value:
Measured value
Status:
Good and Not Limited
(0xC0)
Value:
Measured
value
Status:
Good
and Not
Limited
(0xC0)
Value:
Hold value
Status:
Bad and
Constant
(0x30)
Value:
Measured
value
Status:
Good
and Not
Limited
(0xC0)
Illegal SP
URV
Illegal SP
SPAN