Siemens SITRANS T Series - Page 189

ID Symbols Message Cause/Remedy
8J Drift detected, reference volt‐
age VREF
A critical measurement error was detected at the internal voltage
reference.
Reconnect or repair the sensor.
If the problem persists, contact Technical Support.
8L Drift detected at Input 1 A critical measurement error was detected at Input 1.
Reconnect or repair the sensor.
If the problem persists, contact Technical Support.
8n Drift detected at Input 2 A critical measurement error is detected at Input 2.
Reconnect or repair the sensor.
If the problem persists, contact Technical Support.
8o Drift detected, ground voltage
o󹪜set to terminal 3
A critical measurement error is detected on ground voltage o󹪜set to
terminal 3.
Reconnect or repair the sensor.
If the problem persists, contact Technical Support.
bF Con󹪝guration not supported by
device
Device LED 󹪞ashing red: The con󹪝guration is temporarily invalid for
less than 3 seconds, for example during parameter download.
No further action is required by the user.
Device LED lights permanently red: The con󹪝guration is temporarily
invalid for more than 3 seconds, for example if the download is
paused.
Correct and/or resend the con󹪝guration.
bL Device restart due to unexpec‐
ted program error
The main program was inadvertently reset.
Correct and/or resend the con󹪝guration.
If the problem persists, contact Technical Support.
bo Primary variable out of limits Process value has reached the sensor limit.
Review process conditions versus product speci󹪝cations.
bP Non-primary variable out of lim‐
its
A process value that is not mapped to the primary variable has
reached the sensor limit.
Review process conditions versus product speci󹪝cations.
CA Simulation mode The device is in simulation mode and one or more of its device varia‐
bles are not representative of the process.
Disable the simulation to return to normal operation.
Diagnostics and troubleshooting
11.2 Diagnostic messages
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Operating Instructions, 05/2020, A5E41864807-AB 189