Troubleshooting – Rockwell Automation 839E Solid-State Flow Sensors User Manual
Page 24
839E Solid-State Flow Sensors User Manual
22
Pub #10000004735 Ver 03, May 2012
Troubleshooting
Error and warning codes
If an error occurs in the electronics, the color of the status LED changes from green to red
and the background illumination of the digital display changes from white to red. A status
LED flashing red and green displays an error or warning code, as outlined below:
• E-code for errors
In the event of an error message, the measured value is unreliable.
• W-code for warnings
In the event of a warning, the measured value is still reliable.
Error Codes
Code
Explanation
E011
Device configuration faulty
E012
Error in measurement or underrange/overrange
E013
Error at heating resistor
E015
Error in EEPROM
E019
Power supply has undervoltage/overvoltage
E020
Error in Flash
E021
Internal memory error
E022
USB power supply
E027
Characteristic does not suit medium
E042
Output current can no longer be generated. Possible cause:
analog output not connected or open circuit.
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