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Operating instructions: 11109132 09 EN Page 1 / 20
Safety instructions
2019
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This instrument is constructed and tested according to the current EU-
directives and packed in technically safe condition. In order to maintain
this condition and to ensure safe operation, the user must follow the
instructions and warnings given in this instruction.
During the installation local standards have to be observed. Ignoring the
warnings may lead to severe personal injury or substantial damage to
property.
The product must be operated by trained staff. Correct and safe opera-
tion of this equipment is dependent on proper transport, storage, instal-
lation and operation.
All electrical wiring must conform to local standards and the connection
must be made according to the connecting diagrams.
Before switching on the power supply take care that other equipment is
not affected. Ensure that the supply voltage and the conditions in the
environment comply with the specification of the device.
Before switching off the supply voltage check the possible effects on
other equipment and the processing system.
To obtain the specified protection degree, the LFFS must be mounted
with a compliant cable.
Description
The Level Switch LFFS designed to detect levels in tanks, media separation and provide empty-pipe detection or dry-run protection
for pumps.
By means of the FlexProgrammer 9701 the output can be configured to either NPN, PNP or digital output signal. A damping of the
output signal can be activated in case of a fluctuating media level, e.g. during tank filling.
The measurement is precise and unaffected by the mounting position in the tank. In the Flex-software a compensation for foam,
bubbles and condensate as well as viscous media can be set.
The Flex-software also features an adjustment facility making the user able to adjust the sensor to a specific media.
The Level Switch LFFS measures liquids such as water and beer as well as viscous, sticky fluids, such as honey, yoghurt, tooth-
paste and ketchup. Even dry medias can be measured, e.g. sugar or flour.
The Level Switch LFFS is resistant against CIP and SIP agents.
Hygienic installation is also possible with the comprehensive range of accessories, see the overview at page 6.
WARNING
When the top cover is removed, do not look directly at the blue LED with unshielded eyes or damage to retina may occur!
This product contains no replaceable parts. In case of malfunction the product must be shipped to Baumer for repair.
Operating instructions
CleverLevel switch, LFFS
CleverLevel switch, type LFFS is an universal level switch, which
can be used for all applications in liquids and solids with a DC-
value above 1.5
