Emerson Rosemount5081 - Fact FAIL Procedure

FAct FAIL procedure
FACt FAIL appears if the transmitter factory calibration message has been triggered. A stray
noise spike can cause this message to appear. If the pH reading seems acceptable, reset
the calibration flag.
1. Enter the factory calibration menu by pressing 2 on the IRC ten times.
The display does not change.
2. Immediately press 3.
FActorYCAL appears in the display.
3. Press NEXT.
rEPAir appears in the display.
4. Press NEXT.
ConFIG appears in the display.
5. Press NEXT.
rESEt appears in the display.
6. Press ENTER.
rESEtCFG appears in the display.
7. Press ENTER.
rESEt appears again.
8. Press NEXT.
FActorYCAL reappears.
9. Press ENTER.
FactOn appears in the display.
10. Press 3.
FactOFF appears.
11. Press ENTER to store the settings.
12. Press EXIT repeatedly until the main display reappears.
If the message does not clear or problems persist, the electronics have failed. Replace the
electronic board stack.
Diagnostics and troubleshooting
Instruction Manual 91