Deltabar FMD71, FMD72 Diagnostics and troubleshooting
Endress+Hauser 69
Diagnostic event Cause Corrective measure
Code Description
S841 Sensor range • Overpressure or low pressure present.
• Sensor module defective.
• Check the pressure value
• Contact Endress+Hauser
Service
S945 Pressure limit LP • The configured overpressure or underpressure
limit of the sensor module LP is exceeded.
• Sensor module LP defective.
• Check the pressure value
• Change pressure limit value
• Contact Endress+Hauser
Service
S971 Adjustment • The current is outside the permitted range 3.8 to
20.5 mA.
• The present pressure value is outside the
configured measuring range (but within the
sensor module range, if applicable).
• Check the pressure value
• Check the measuring range
• Check the setting
10.3 Response of output to errors
The response of the current output to errors is defined in the following parameters:
• "Alarm behav. P (050)" → 93
• "Output fail mode (190)" → 94
• "High alarm curr. (052)" → 94
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