Diagnostics and troubleshooting Proline Prowirl F 200 PROFIBUS PA
166 Endress+Hauser
Diagnostic information Remedy instructions Influenced measured
variables
No. Short text
842 Process limit Low flow cut off active!
1. Check low flow cut off configuration
• Calculated saturated
steam pressure
• Density
• Energy flow
• Flow velocity
• Heat flow difference
• Low flow cut off
• Mass flow
• Total mass flow
• Switch output status
• Pressure
• Reynolds number
• Specific volume
• Corrected volume flow
• Steam quality
• Degrees of superheat
• Temperature
• Volume flow
Measured variable status
Quality Good
Quality substatus Ok
Coding (hex) 0x80 to 0x83
Status signal S
Diagnostic behavior Warning
Diagnostic information Remedy instructions Influenced measured
variables
No. Short text
844 Sensor range exceeded Reduce flow velocity • Calculated saturated
steam pressure
• Density
• Energy flow
• Flow velocity
• Heat flow difference
• Low flow cut off
• Mass flow
• Total mass flow
• Switch output status
• Pressure
• Reynolds number
• Specific volume
• Corrected volume flow
• Steam quality
• Degrees of superheat
• Volume flow
Measured variable status [from the factory]
1)
Quality Uncertain
Quality substatus Process related
Coding (hex) 0x78 to 0x7B
Status signal S
Diagnostic behavior Warning
1) Diagnostic behavior can be changed. This causes the overall status of the measured variable to change.
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