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26
Display Type
Description
Fault correction
S�Loc
Warning Setting buttons locked via
parameter software, parameter
change rejected�
►
Unlock the unit via IO-Link
interface using the parame-
ter setting software�
UL
Warning Below the display range: tem-
perature value < - 20 % MEW
�
►
Check temperature range�
►
Repeat low-flow adjustment�
OL
Warning Display range exceeded: meas-
ured value > 120 % of MEW
�
►
Check flow range / tempera-
ture range�
►
Repeat high-flow adjust-
ment�
SC1
Warning Switching status LED for OUT1
flashing: short circuit OUT1�
►
Check switching output
OUT1 for short-circuit or
excessive current�
SC2
Warning Switching status LED for OUT2
flashing: short circuit OUT2�
►
Check switching output
OUT2 for short-circuit or
excessive current�
SC
Warning Switching status LEDs for
OUT1 and OUT2 flashing: short
circuit OUT1 and OUT2�
►
Check switching outputs
OU1 and OUT2 for short-cir-
cuit or excessive current�
FAIL
Warning Faulty low-flow or high-flow
adjustment (e�g� the distance
between maximum and mini-
mum flow is too small)�
►
Repeat flow adjustment�
MEW = final value of the measuring range
14 Maintenance
►
From time to time check the sensor tip for build-up�
►
Clean with soft cloth� Stubborn build-up, for example lime can be removed
using a common vinegar cleaning agent�