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UK
5.2.6 Probes for different tank heights
• The unit can be installed in tanks of different sizes� Probes in different lengths
are available� To adapt to the tank height, each probe can be shortened� The
minimum probe length is 10 cm, the maximum probe length is 160 cm�
• Probe and housing can be rotated without restriction� This enables easy
installation and orientation of the head of the unit after installation�
5.2.7 Safe state
• In case of a fault a safe state can be defined for each output�
• If a fault is detected or if the signal quality is below a minimum value, the
outputs pass into the "safe state"� For this case the response of the outputs can
be set via the parameters [FOU1], [FOU2]�
• Temporary loss of signal caused e�g� by turbulence or foam formation can be
suppressed by a delay time (→ 10.5.8 [dFo]). During the delay time the last
measured value is frozen� If the measured signal is received again in sufficient
strength within the delay time, the unit continues to work in normal operation� If,
however, it is not received again in sufficient strength within the delay time, the
outputs pass into the safe state�
In case of heavy foam formation and turbulence, note the examples of how
to create a steady area (→ 6.1.2).
5.3 IO-Link
General information
This unit has an IO-Link communication interface which requires an IO-Link-
capable module (IO-Link master) for operation�
The IO-Link interface enables direct access to the process and diagnostic data
and provides the possibility to set the parameters of the unit during operation� In
addition communication is possible via a point-to-point connection with a USB
adapter cable�
Further information about IO-Link is available at www�ifm�com/gb/io-link�
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