LR7009
Electronic level sensor
30
10 Operation
After power-on and expiry of the power-on delay time of approx. 0.5 s the unit is in the RUN mode (=
normal operating mode). It carries out its measurement and evaluation functions and generates output
signals according to the set parameters.
10.1 Operating indicators
[---] continuous
Initialisation phase after power on.
Numerical value + LED 1
Current level in cm.
Numerical value + LED 3
Current level in % of the final value of the measuring range.
LED 7 / LED 8
Switching status of the corresponding output.
[----]
Level below the active zone.
[FULL] + numerical value alternately
Level has reached or exceeded the maximum measuring range (= overflow
warning).
[ΞΞΞΞ]
On delivery the device is not operational.
u
Basic settings are required.
[Loc]
Device electronically locked; parameter setting impossible.
u
For unlocking press the two setting buttons for 10 s.
[uLoc]
Device is unlocked / parameter setting is possible again.
[S.Loc]
If [S.Loc] is displayed when an attempt is made to modify a parameter val-
ue, either an IO-Link communication is active (temporary locking) or the
sensor is permanently locked via software. This locking can only be re-
moved with a parameter setting software.
10.2 Reading the set parameters
u
Briefly press [Mode/Enter] to scroll the parameters.
u
Briefly press [Set] to indicate the corresponding parameter value for about 30 s. After another 30 s
the device returns to the Run mode.
10.3 Changing the display unit in the Run mode
Switching between length indication (cm) and percentage.
u
Briefly press [Set] in the Run mode.
w
The selected unit is displayed for 30 s, the corresponding LED is lit. With each push of the button
the display type is changed.
10.4 Error indications
Indication
Possible cause
Recommended actions
[E.000]
Fault in the electronics.
Replace the device.
[E.031]
Probe detached from the device; possibly incorrect
setting of the probe length.
Check whether the probe is still attached to the device.
Check the parameter [LEnG].
[E.033]
Measurement disturbed by heavy foam build-up or
turbulence.
• Install the device in a still pipe or bypass.
• Set or increment [dFo].
Measurement disturbed by separation layers (e.g.
oil layer on water).
Remove the oil layer by suction, stir the medium, check
the composition.
