Diagnostics and troubleshooting Proline t-mass I 300 HART
148 Endress+Hauser
Diagnostic
number
Short text Remedy instructions Status
signal
[from the
factory]
Diagnostic
behavior
[from the
factory]
594 Relay output simulation Deactivate simulation switch output C Warning
Diagnostic of process
803 Current loop 1. Check wiring
2. Change I/O module
F Alarm
832 Electronic temperature
too high
Reduce ambient temperature S Warning
1)
833 Electronic temperature
too low
Increase ambient temperature S Warning
1)
834 Process temperature too
high
Reduce process temperature S Warning
1)
835 Process temperature too
low
Increase process temperature S Warning
1)
842 Process limit Low flow cut off active!
1. Check low flow cut off
configuration
S Warning
1)
882 Input signal 1. Check input configuration
2. Check external device or process
conditions
F Alarm
941 Flow velocity too high 1. Check process cond.
2. Increase system pressure
S Alarm
961 Delta temperature Check flow rate S Alarm
976 Mass flow out of
calibrated range
1. Check process cond.
2. Increase system pressure
S Warning
1)
977 Reverse flow detected Check flow direction S Warning
1)
979 Unstable process
conditions
1. Check process cond.
2. Increase system pressure
S Warning
1)
1) Diagnostic behavior can be changed.
11.8 Pending diagnostic events
The Diagnostics menu allows the user to view the current diagnostic event and the
previous diagnostic event separately.
To call up the measures to rectify a diagnostic event:
• Via local display → 141
• Via web browser → 142
• Via "FieldCare" operating tool → 144
• Via "DeviceCare" operating tool → 144
Other pending diagnostic events can be displayed in the Diagnostic list submenu
→ 149
Navigation
"Diagnostics" menu
Diagnostics
Actual diagnostics
→ 149