IFM Electronic LR7022 Bedienungsanleitung Und Sicherheitshinweise Seite 36

For programming carry out the following steps in the indicated order.
Step Programming
1 Access the extended functions
• Press the Mode/Enter button until EF is displayed.
• Press the Set button. The first parameter of the extend-
ed menu is now displayed. You can access the corre-
sponding parameter value by pressing the Set button
again. Pressing the Mode/Enter button accesses the fol-
lowing parameters.
2 Selection of the display unit
Set the required display unit: cm / inch.
Select the display unit before setting values for the para-
meters SPx, rPx, LEnG, OFS. This avoids rounding errors
generated internally during the conversion of the units
and enables exact setting of the values.
Setting at the factory: Uni = cm.
3 Setting of the probe length
This setting is only necessary if the probe length differs
from the delivered length.
On delivery: LEnG = probe length L (see scale drawing
page 41).
• Determine the actual probe length (measured from the
lower edge of the thread to the probe end). Round this
value to 5 mm / 0.2 inch.
• Activate the parameter LEnG. Enter the new value.
For the setting range of the probe length please refer
to the table on page 38
4 Setting of the offset value
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.
Setting at the factory: OFS = 0.
The setting values OFS are indicated in the table on page
38.
Please note: Select OFS, before setting values for the
parameters SPx, rPx and OP. This avoids inadvertent
maladjustment.
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Parameter