Endress+Hauser Prothermo NMT81 - General Errors

Prothermo NMT81 Diagnostics and troubleshooting
Endress+Hauser 93
Diagnostics event and event text
The fault can be identified using the diagnostics event. The event text helps you by
providing information about the fault. In addition, the corresponding symbol is displayed
before the diagnostics event.
Diagnostics event
Status symbol Status signal Event number Event text
↓ ↓ ↓
Example
A0013962 A0013956
62 Sensor connection faulty
2 or 3-digit
number
If two or more diagnostic messages are pending simultaneously, only the message with the
highest priority is shown. Additional pending diagnostic messages can be shown in
Diagnostic list.
11.2.2 General errors
Error Possible cause Remedial action
Device does not respond. Supply voltage not connected. Connect the correct voltage.
The cables do not contact the
terminals properly.
Ensure electrical contact between the
cable and the terminal.
Values on the display
invisible
The plug of the display cable is not
connected correctly.
Connect the plug correctly.
Display is defective. Replace display.
"Communication error" is
indicated on the display when
starting the device or
connecting the display
Electromagnetic interference Check grounding of the device.
Broken display cable or display plug. Exchange display.
CDI communication does not
work.
Wrong setting of the COM port on
the computer.
Check the setting of the COM port on
the computer (e.g. FieldCare) and
change it if necessary.
Device measures incorrectly. Parametrization error Check and adjust parameterization.
11.2.3 List of diagnostic events in the operating tool
Diagnostic
number
Short text Remedy instructions Status
signal
[from the
factory]
Diagnostic
behavior
[from the
factory]
Diagnostic of sensor
061 Sensor electronics faulty Replace sensor electronics F Alarm
062 Sensor connection faulty Check sensor connection F Alarm
101 Sensor temperature 1. Check process temperature
2. Check ambient temperature
S Warning
107 Temperature element
open
1. Check probe connection
2. Check elements
M Warning
1)
108 Temperature element
short
1. Check probe connection
2. Check elements
M Warning
1)