Trouble-Shooting; Errors And Warnings - Endress+Hauser Thermophant T TTR31 Operating Manual

Trouble-shooting

8 Trouble-shooting
8.1

Errors and warnings

If an error in the device occurs, the colour of the status LED changes from green to red and the
digital display illumination changes from white to red. A status LED flashing red and green
signals a warning. The display shows:
• E-code for errors
In the event of an error message, the measured value is uncertain.
• W-code for warnings
In the event of a warning, the measured value is reliable.
Code
E011
E012
E019
E015
E020
E021
E022
E025
E026
E040
E042
28
Explanation
Device configuration faulty
Error in measurement or medium
temperature outside specification
Power supply outside specification
Memory error
Power is only supplied to the device via
the communication interface
(measurement is deactivated)
Switching contact 1 is not open although
it should be
Switching contact 2 is not open although
it should be
VCC (Controller voltage) is out of
working area
Output current can no longer be
generated (only for 4 to 20 mA output,
e.g. load at analog output too high or
open analog output)
Remedy
Reset device (→ Chap. 5.1.7)
Check medium temperature, return
device to E+H where necessary
Check operating voltage
Return device to E+H
Check operating voltage
Switching contact defective,
return device to E+H
Switching contact defective,
return device to E+H
Return device to E+H
Check load.
Switch off analog output via
configuration, if it isn't required,
→ Chap. 5.1.6.
TTR31, TTR35
Endress+Hauser