Binary level sensor
LMT0xA
5
3 Intended use
The unit monitors the level of liquid, viscous and powdery media in tanks and pipes. It can be used for
limit detection and run-dry protection. The separate setting of two switching thresholds enables the
detection of two different media (can be used, for example, for phase separation or differentiation of
media).
3.1 Application area
•
Detection of almost all media.
•
Food and hygienic areas.
•
Available process connections: G1/2.
•
Different probe lengths for various mounting positions and for temperature decoupling.
Type
Factory setting
1)
Sensitivity
1)
Probe length
2)
Process connection
LMT01A
Oils, greases, powders
High
11 mm
G1/2
LMT03A
Oils, greases, powders
High
153 mm
G1/2
LMT04A
Oils, greases, powders
High
253 mm
G1/2
1)
Sensitivity adjustable (
Ò
Parameter setting)
2)
Probe length measured from conical sealing edge (
Ò
Technical data)
3.2 Restriction of the application area
•
Not suitable for abrasive media (e.g. quartz sand) and heavy bulk material.
•
Not suitable for ozonised water.
•
For use in aggressive media (acids and alkali):
u
Check the compatibility of the product materials beforehand (→ Technical data sheet).
•
When used in media which are inhomogeneous, separate from each other thus forming separation
layers (e.g. oil layer on water):
u
Check the function by an application test.
•
A large amount of air or gas bubbles may lead to changed switching characteristics. This effect can
be used to implement, for example, run-dry protection or pump protection (key word: cavitation).
u
Check the function by an application test. If required, adapt the sensitivity or set switching delays
(
Ò
Parameter setting).
•
Do not expose the probe tip to intensive sun radiation (UV radiation).
GB
