Repair; Disposal - Endress+Hauser Flowphant T DTT31 Operating Instructions Manual

Troubleshooting
Code
W107
W200
W202
W209
W210
W240
W250
W260
W270
W280
W432

8. 2 Repair

A repair is not planned.

8. 3 Disposal

Please pay particular attention to the local disposal regulations of your country. When disposing,
ensure that the materials of the device components are separated and processed accordingly.
30
Explanation
Simulation active
Fluid temperature outside specification
(> 85 °C)
Measured flow rate outside the range between
set Low and High Flow
(< -10% or > 110%)
Device starts
Configuration changed (warning code displayed
for approx. 15 s)
Flow velocity too high (> 3 m/s in water), the
device is operated outside its specified measur-
ing range. The measurement is uncertain.
Number of max. switch cycles exceeded
Values for High Flow (HIF) and Low Flow
(LOWF) too close
Short-circuit and overload at output 1
Short-circuit and overload at output 2
Values for High Flow (HIF) or Low Flow
(LOWF) could not be determined with certainty
(→ Page 14). The device can be operated how-
ever.
Remedy
Check fluid temperature and, where
necessary, adapt it to the specifica-
tion
Set High and Low Flow again, reset
device to factory setting where nec-
essary (PRES function)
Reduce flow velocity of the medium
Set High and Low Flow again
(greater distance apart), reset device
to factory setting where necessary
(PRES function)
Check output wiring
Check output wiring
Set High and Low Flow again (keep
flow velocity constant!)
Endress+Hauser
DTT31, DTT35