Endress+Hauser Waterpilot FMX21 - Troubleshooting Specific to Waterpilot FMX21 with Optional Pt100

Waterpilot FMX21 Diagnostics and troubleshooting
Endress+Hauser 67
"C" messages
Diagnostic event Reason Corrective measure
Code Description
C412 Backup in prog. Downloading. Wait for download to
complete.
C482 Simul. output Simulation of the current output is switched on, i.e. the
device is not measuring at present.
End the simulation
C484 Error simul. Simulation of an error status is switched on, i.e. the
device is not measuring at present.
End the simulation
C485 Measure simul. Simulation is switched on, i.e. the device is not
measuring at present.
End the simulation
C824 Process pressure • Overpressure or low pressure present.
• Electromagnetic effects outside the permitted range.
This message appears for a short time only.
• Check the pressure
value
• Restart the device
• Perform a reset
"S" messages
Diagnostic event Reason Corrective measure
Code Description
S110 Operational
range T
• High temperature or low temperature present.
• Electromagnetic effects outside the permitted range.
• Faulty sensor.
• Check process
temperature
• Check the temperature
range
S140 Working range P
LP/HP
• Overpressure or low pressure present.
• Electromagnetic effects outside the permitted range.
• Faulty sensor.
• Check the process
pressure
• Check sensor range
S822 Process temp.
LP/HP
• The temperature measured in the sensor is higher
than the upper nominal temperature of the sensor.
• The temperature measured in the sensor is lower
than the lower nominal temperature of the sensor.
• Check temperature
• Check the setting
S841 Sensor range • Overpressure or low pressure present.
• Faulty sensor.
• Check the pressure value
• Contact Endress+Hauser
Service
S971 Adjustment • The current is outside the permitted range from 3.8
to 20.5 mA.
• The present pressure value is outside the configured
measuring range (but within the sensor module
range, if applicable).
• The calibration carried out would result in values
that exceed or fall below the nominal range of the
sensor.
• Check the pressure value
• Check the measuring
range
• Check the setting
10.3 Troubleshooting specific to Waterpilot FMX21 with
optional Pt100
Error description Reason Corrective action
No measuring signal 4 to 20 mA cable not connected
correctly
Connect device as per.
No power supplied via the 4 to 20 mA
cable
Check current loop.
Supply voltage too low (at least 10.5 V
DC)
• Check supply voltage.
• Overall resistance greater than
max. load resistance