Siemens SITRANS 7MF03.0 - Page 18

ID Symbols Message Cause/Remedy
FS Electronics defect
Maintenance alarm
The transmitter electronics or the sensor electronics is defective.
Replace the transmitter electronics.
Replace the measuring cell.
L - The device is write-protected by a jumper.
LA - Incorrect PIN entered three times. Try again in some minutes.
Lb
(yellow)
User PIN unchanged
Con󹪝guration warning
The default user PIN is being used.
Enter a new user PIN to optimally protect the device.
LL - Button lock is enabled.
LP - Parameters and device functions are write-protected with a user PIN.
SA Non-volatile memory
check failure
Maintenance alarm

The transmitter electronics or the sensor electronics is defective.
Replace the transmitter electronics.
Replace the measuring cell.
Sb Volatile memory check fail‐
ure
Maintenance alarm
The transmitter electronics or the sensor electronics is defective.
Replace the transmitter electronics.
Replace the measuring cell.
SC
(red)
Invalid device con󹪝gura‐
tion
Con󹪝guration error
One or more of parameters are set to invalid values.
Review con󹪝guration values and adjust as necessary.
Diagnostics and troubleshooting
4.1Diagnostic messages
SITRANS P320/P420
18 Service Manual, 11/2023, A5E44914141-AC