IFM Electronic LR7022 Bedienungsanleitung Und Sicherheitshinweise Seite 26

Functional overview
• The unit displays the current level and signals via two switching out-
puts that the set limits have been reached or that the level is below
the set limit. The setpoint and reset point values and the switching
function of the outputs can be set via the user menu. For each of
the two switching outputs a switch-off delay (max. 5 s) can be set
(e.g. for specially long pump cycles).
• The unit can be installed in tanks of different sizes. 3 probe lengths
are available. To adapt to the tank height, it is also possible to short-
en the probe. The unit can be set to the new probe length via the
user menu.
• The zone between tank bottom and lower edge of the measuring
probe can be entered as offset value (OFS). Thus display and switch
points refer to the real level.
• The display unit can be set: cm or inch..
• The unit can be reset to the factory settings.
• The response of the outputs in case of a fault is adjustable. If a fault
is detected or if the signal quality is below a minimum value, the
outputs pass into the safe state (→ page 37, parameters FOU1 and
FOU2).
• Housing rotatable by 360° for orientation after mounting.
• Probe rotatable by 360° for easier mounting / removal of the probe.
To ensure the unit functions correctly, certain installation
conditions must be adhered to.
Read the following chapter (mounting) carefully and fol-
low the instructions.
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