WIKA TIF52 - Handbuch (Seite 30)

30 WIKA operating instructions models TIF50, TIF52
GB
14009686.02 03/2012 GB/D
11. Faults
Error messages
HART ® communications errors are reported with the numerical codes 1 - 9. An error
message occurs when a transaction is not successful, despite being retried several times.
An error message is only displayed when an error occurs as a consequence of a command
sent from the display, i.e. only when an operation by the user leads to the error. Errors in the
communication between the control system and sensor are detected but not displayed.
The measuring value line shows "ERROR", the status line shows "HART ® n" whereby "n"
represents the numeric error code. The error message remains displayed until the next key
actuation takes place.
11. Faults
Fault-tree
l = 0 mA
Current loop disconnected
Voltage supply connected incorrectly
(wrong polarity)
Transmitter not connected
l > 20 mA
l < 4 mA
4 mA < l < 20 mA
but wrong values
Process temperature out of range
Sensor connected incorrectly
Sensor break or short circuit
Wrong transmitter configuration