Seite 1
Design und Spezifikationen können ohne Ankündigung geändert werden
Installationsanleitung 5850-020
www.baumer.com/process
R
74 - 03
Level Switch LFFS
WARNING
This product contains no replaceable parts.
In case of malfunction the product must be shipped to Baumer for repair
Description
The Level Switch LFFS designed to detect levels in tanks, media
separation and provide empty-pipe detection or dry-run protection for
pumps.
A high frequency sweep signal is radiated from the sensor tip into the
tank. The media will act as a virtual capacitor, which together with a
coil in the sensor head, will form a circuit creating the switch point
signal. This virtual capacity will depend of the di-electric value of the
media.
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, youghurt, toothpaste and
ketchup. Even dry medias can be measured, eg. sugar or flour.
The Level Switch LFFS is resistent against CIP and SIP agents.
Hygienic installation is also possible with the comprehensive range of
accessories, see the overview at page 6.
When the top cover is removed
do not look directly at LED
with unshielded eyes or
damage to retina may occur !!
Safety instructions
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
operation of this equipment is dependent on proper transport, storage,
installation and operation.
All electrical wiring must conform to local standards and the connec-
tion 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.
