User guide
    <4.  Diagnostics>
4-2
IM 01C25R05-01EN
4.2  Alarms and Countermeasures
Table 4.1  Alarm Message Summary
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.01 
CAP.ERR
P sensor 
error
1 Sensor problem. Replace 
capsule if the 
error recurs 
after the 
transmitter is 
restarted.
Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant 
(0x30)
CT sensor 
error
Capsule 
temperature 
sensor problem.
Replace 
capsule.
Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant
(0x30)
Cap 
EEPROM 
error
Capsule 
EEPROM 
problem.
Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant
(0x30)
AL.02 
AMP.ERR
Amp 
EEPROM 
error
Amplier 
EEPROM 
problem.
Replace 
amplier.
Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant
(0x30)
CPU board 
error
2 Amplier 
problem.
Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant
(0x30)
ET module 
Com error
4 Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant
(0x30)
ET module 
error
Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant
(0x30)
AL.03 
ET. ERR*
ET sensor 
error
External 
temperature 
sensor 
disconnection.
Check external 
temperature 
sensor.
Value: Hold value
Status: Bad and Constant
(0x30)
Value: Hold value
Status: Bad and Constant
(0x30)
*:  When ET is set as “Fixed” or “Fall back”, this alarm does not occur.










