8
4.3 Applications
• Water, water-based media
• Oils, oil-based media (only for operation with coaxial probe)
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)
4.3.1 Restriction of the application area
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 by performing an application test�
► Installation in a steady area (→ 6.1).
> In case of signal loss, the unit displays [E�033] and switches the
outputs to a defined state (→ 11.5).
• 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: Check the compatibility of the product materials (→ 12) with the
media to be monitored
• 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 according to EN61000-6-2)�
Corrective measures: (→ 6.4.4).
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