Operating Instructions
Level measurement
CleverLevel
®
PL20H/S
Adaptive trigger – hygienic/industrial
3. Symbols in warning signs
Symbol
Warning term Explanation
DANGER
In situations which cause death or serious injuries.
WARNING
In situations which can cause death or serious injuries.
CAUTION
In situations which can cause light or medium injuries.
ATTENTION
For material damage
4. Transport and storage
ATTENTION
Unintended change of measurement characteristics
Correct gas and dust protection can only be achieved by meeting their installation requirements.
f
Handle the sensor with care.
f
Check packaging and sensor for damage.
f
In the event of damage: Do not use sensor.
f
Store sensor where it will be secure against
shock.
Storage temperature: -40 ... +85 °C
Relative humidity: < 98 %
5. Assembly
2
4
1
3
4
4
Fig. 3. Mounting options
1
Overfill protection
2
Limit level, max.
3
Limit level, min.
4
Run-dry protection
The sensor can be mounted on any point in the
vessel.
A sensor mounted at the top of the vessel (1)
ensures against overfilling. Sensors attached
further down detect a maximum (2) or minimum (3)
limit level. A sensor attached at the bottom or on
the outfeed pipe (4) can protect a connected pump
against dry running.
If the sensor is mounted in a pipe, it is
recommended to use window trigger as the trigger
function. The adaptive trigger can have limited
functionality if it is mounted in a pipe.
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