Endress+Hauser Flowphant T DTT31 - Page 31

Flowphant T DTT31, DTT35 Diagnostics and troubleshooting
Endress+Hauser 31
Code Explanation Remedy
E011 Device configuration is incorrect Perform device reset →  28
E012 Measurement error or medium temperature outside the
measurable range
Check the medium temperature; return the
device to the manufacturer if necessary
E013 Sensor heating defective Return device to manufacturer
E019 Power supply out of specification Check operating voltage
E015
Memory error Return device to manufacturer
E020
E021
E022 Power is only supplied to the device via the communication
interface (measurement is disabled)
Check operating voltage
E042 Output current can no longer be generated (only for
4 to 20 mA output, e.g. load too high at analog output or open
analog output)
Check load; switch off analog output
Code Explanation Remedy
W107 Simulation active
W200 Medium temperature out of specification (>85 °C) Check the medium temperature and adapt it
to the specification if necessary
W202 Measured flow outside the range between the set Low and
High Flow (< –10% or >110%)
Set the High and Low Flow again; reset the
device to the factory default setting if
necessary (PRES function)
W209 Device starting up
W210 Configuration changed (warning code is displayed for approx.
15 s))
W240 Flow velocity too high (> 3 m/sin water), the device is being
operated outside its specified measuring range. The
measurement is uncertain.
Reduce the flow velocity of the medium
W250 Number of max. switching cycles exceeded
W260 Values for High Flow (HIF) and Low Flow (LOWF) are too
close together
Set the High and Low Flow again (values are
further apart); reset the device to the factory
default setting if necessary (PRES function)
W270 Short-circuit and overload at output 1 Check output wiring
W280 Short-circuit and overload at output 2 Check output wiring
W432 Values for High Flow (HIF) or Low Flow (LOWF) could not be
determined with certainty. The device can still be operated,
however. →  20
Set the High and Low Flow again (keep flow
velocity constant!)