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ID
Symbols
Message
Cause/Remedy
FE
Loop current read back error
Maintenance demanded
The loop current does not correspond to the expected value.
Check DAC trim settings.
Restore to factory DAC calibration.
If the problem persists, contact Technical Support.
FJ
Process conditions outside the
specification
Process value warning
Uncertain values due to process conditions.
Check installation for abnormal operating conditions.
Fn
Connection error to sensor
electronics.
Maintenance alarm
Potential product damage.
Restart the device.
If error continues, sensor electronics may have a defect.
Repair required. Contact Technical Support.
Fo
Sensor break
Maintenance alarm
Potential product damage.
Sensor has malfunctioned.
A replacement of sensor is recommended.
Contact Technical Support.
Fr
Internal power supply is out of
allowable range.
Process value warning
A replacement of the device is recommended.
Contact Technical Support.
FS
Electronics defect
Maintenance alarm
Defect of device electronics.
A replacement of the device is recommended.
Contact Technical Support.
SA
Non-volatile memory check fail‐
ure
Maintenance alarm
Device electronics error.
Restart the device.
If error continues, device electronics may have a defect.
Repair is required. Contact Technical Support.
Sb
Volatile memory check failure
Maintenance alarm
Device electronics error.
Restart the device.
If error continues, device electronics may have a defect.
Repair is required. Contact Technical Support.
SC
(red)
Invalid device configuration
Configuration error
One or more of parameters are set to invalid values.
Review configuration values and adjust as necessary.
Diagnostics and troubleshooting
12.2 Diagnostic messages
SITRANS P320/P420 with 4 to 20 mA/HART
196
Operating Instructions, 11/2019, A5E44852162-AC