Selection
Point level vs continuous level: choose the control task first
A point level switch reports pre…
Ler guiaLISEN · BAUMER
Centro de conhecimento
Guias práticos de seleção, instalação, comportamento do processo e substituição.
Artigos técnicos e documentos de referência estão em inglês. As páginas principais estão disponíveis em 20 idiomas.
64 guias técnicos
Selection
How frequency sweep point level detection works
Frequency sweep evaluates the el…
Ler guiaSelection
A complete level sensor selection checklist
Begin with the process and contr…
Ler guiaTechnology comparisons
Replacing a float switch with an electronic level switch
An electronic point switch can b…
Ler guiaTechnology comparisons
Vibrating fork vs electronic point switch
Both technologies can detect a l…
Ler guiaTechnology comparisons
Capacitive vs conductive level switches: what changes?
Conductive sensing depends on an…
Ler guiaTechnology comparisons
Radar vs point level switch: replacement or complement?
A radar transmitter and a point …
Ler guiaTechnology comparisons
Ultrasonic level sensing vs a local point switch
Ultrasonic sensing measures dist…
Ler guiaTechnology comparisons
Hydrostatic level vs point detection in tanks
Hydrostatic measurement derives …
Ler guiaTechnology comparisons
Optical vs electronic point level switches
An optical switch detects a chan…
Ler guiaTechnology comparisons
Guided wave radar and point switches in the same design
Guided wave radar generally meas…
Ler guiaTechnology comparisons
Rotary paddle vs electronic point detection for solids
A rotary paddle detects resistan…
Ler guiaMedia behavior
Detecting foam or ignoring foam: define the objective
“Works with foam” is incomplete.…
Ler guiaMedia behavior
Level switches for sticky products and coating
For sticky media, the critical e…
Ler guiaMedia behavior
Low-dielectric media: why a water test is not enough
A sensor that switches clearly i…
Ler guiaMedia behavior
Oil/water differentiation: what a point switch can tell you
A configurable point sensor may …
Ler guiaMedia behavior
Point detection in powders and granules
Powder and granule applications …
Ler guiaMedia behavior
Selecting a level switch for slurry
Slurry selection must consider b…
Ler guiaMedia behavior
How temperature and viscosity affect point detection
Temperature can change both the …
Ler guiaMedia behavior
Conductivity and dielectric constant in level sensing
Conductivity and dielectric cons…
Ler guiaInstallation
Hygienic mounting: the sensor is only part of the assembly
A hygienic sensor requires a com…
Ler guiaInstallation
G½, BSPP and NPT: why the thread name matters
G½ parallel thread and ½ NPT tap…
Ler guiaInstallation
Nozzle length and sensing-tip position
A point switch must sense the pr…
Ler guiaInstallation
Horizontal and vertical point-switch mounting
A model that permits different o…
Ler guiaInstallation
Seals and gaskets in a level sensor package
The seal is part of the process …
Ler guiaInstallation
Why maximum temperature and pressure cannot be combined
A datasheet may list several max…
Ler guiaInstallation
PEEK, 316L and titanium: evaluate the actual wetted parts
Wetted-material selection requir…
Ler guiaInstallation
M12 connectors, IP67 and washdown service
The installed protection depends…
Ler guiaElectrical integration
PNP vs NPN: match the sensor to the PLC input
PNP and NPN describe different t…
Ler guiaElectrical integration
NO and NC do not define the entire fail-safe strategy
Normally open and normally close…
Ler guiaElectrical integration
20 mA switching load is not a 4–20 mA level signal
A maximum switching current of 2…
Ler guiaElectrical integration
Power-up time and startup logic for level switches
A sensor may need time after ene…
Ler guiaElectrical integration
Damping and debounce: control nuisance switching carefully
Time filtering can suppress brie…
Ler guiaElectrical integration
Using a point switch for pump dry-running detection
A point switch can indicate loca…
Ler guiaElectrical integration
High-level alarms and overfill: define the system function
A high-level switch provides a s…
Ler guiaElectrical integration
Hazardous-area sensor selection: verify the exact configuration
Hazardous-area suitability is sp…
Ler guiaApplications
Level switches for dairy and food processing
Food-processing selection combin…
Ler guiaApplications
Brewery applications: liquid presence, foam and cleaning
Brewery duties need a clear dist…
Ler guiaApplications
Level switch selection for pharmaceutical processes
Pharmaceutical applications need…
Ler guiaApplications
Level switches for chemicals and detergents
Chemical and detergent duties re…
Ler guiaApplications
Water-treatment level switches: more than clean water
Water-treatment applications can…
Ler guiaApplications
Point level detection in oils and lubricants
Oils and lubricants can have a s…
Ler guiaApplications
Specify a complete level sensor package for an OEM skid
An OEM package should define the…
Ler guiaApplications
Point switches for plastic granule hoppers
Granule hoppers need level detec…
Ler guiaTesting & maintenance
How to design a useful level switch sample test
A useful sample test defines the…
Ler guiaTesting & maintenance
Troubleshooting a switch that remains covered after draining
A persistent covered signal can …
Ler guiaTesting & maintenance
Troubleshooting a switch that does not detect product
Failure to indicate coverage can…
Ler guiaTesting & maintenance
Commissioning checklist for a point level switch
Commissioning should verify the …
Ler guiaTesting & maintenance
Maintaining electronic point level switches
No moving float does not mean no…
Ler guiaTesting & maintenance
CIP and SIP: specify the complete cleaning envelope
Cleaning and sterilization can i…
Ler guiaTesting & maintenance
How to review a sensor certificate without overclaiming
A certificate is useful only whe…
Ler guiaTesting & maintenance
Legacy LBFS, LBFS-2 and LBFI: keep the data separate
Similar Baumer family names do n…
Ler guiaProcurement
Lisen or Baumer: compare the required configuration
Compare Lisen and Baumer against…
Ler guiaProcurement
Compare total installed cost, not only sensor price
Total cost includes the sensor, …
Ler guiaProcurement
A spare sensor must match more than thread and voltage
A compatible spare must satisfy …
Ler guiaProcurement
What to include in a level sensor RFQ
A strong RFQ describes the requi…
Ler guiaSelection
LBFS, LBFS-2, PL20 and LFFS: a practical CleverLevel family map
CleverLevel is a portfolio, not …
Ler guiaCommissioning
Window trigger vs adaptive trigger: write a testable requirement
Choose trigger behavior accordin…
Ler guiaElectrical
Why a point sensor with 4–20 mA is not a tank level transmitter
An analog electrical signal does…
Ler guiaElectrical
IO-Link level switches: the commissioning record your PLC team needs
An IO-Link interface makes devic…
Ler guiaProcurement
Comparing Lisen and Baumer: build a like-for-like quotation
Compare the complete configured …
Ler guiaCommissioning
A sample test matrix for foam, coating and recipe changes
A useful sensor trial tests tran…
Ler guiaInstallation
High-temperature sensor selection: separate product, cleaning and ambient limits
High-temperature selection needs…
Ler guiaProcurement
Retrofit an existing level switch: a five-gate review
A replacement should pass mechan…
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