7
UK
Application examples:
• Detection of coolant emulsion in a machine tool�
• Detection of cleaning liquid in a parts cleaning system�
• Monitoring of hydraulic oil in a hydraulic power unit (only for operation with
coaxial probe)
• Detection of Diesel fuel (only for operation with coaxial probe, in non hazardous
areas!)�
4.3.1 Restriction of the application area
• The unit is not suitable for bulk materials (e�g� plastic granulates)
• If the unit is to be used in acids or alkalis, in hygienic areas or in electroplating
applications: first check the compatibility of the product materials (→ Technical
data sheet) with the media to be monitored�
• Incorrect measurements or signal loss may be caused by the following media:
-Highly absorbing surfaces (e�g� foam)�
-Intensely bubbling surfaces�
-Media which are very inhomogeneous, separate from each other thus forming
separation layers (e�g� oil layer on water)�
►
Check the function with an application test�
> The unit reports any signal loss via IO-Link and provides a defined signal at
the analogue output
(→ 5.2.4)
�
• The unit is not suitable for applications where the probe is subjected to
permanent and high mechanical stress (e�g� strongly moving viscous media or
strongly flowing media)�
• In case of operation with single probe: use preferably in metal tanks� When
installed in plastic tanks, deterioration caused by electromagnetic interference
may occur (noise immunity to EN61000-6-2). Corrective measures: → 6.4.4.
• When operating with a single probe and small tanks (probe lengths shorter
than 200 mm and less than 300 mm distance to the tank wall), interference
from the tank (resonances) may occur in rare cases�
Corrective measures:
(→ 6.1.1)
• In case of operation with coaxial probe: not suitable for viscous media and
media prone to formation of deposit� Maximum viscosity: 500 mPa · s�
