IFM LT3923 handleiding
Handleiding
Je bekijkt pagina 7 van 36
Electronic sensor for level and temperature LT39xx
7
4 Function
This unit has an IO-Link communication interface which enables direct access to process and
diagnostic data. In addition it is possible to set the parameters of the unit while it is in operation.
Operation of the unit via the IO-Link interface requires an IO-Link master.
With a PC, suitable IO-Link software and an IO-Link adapter cable, communication is possible while
the system is not in operation.
The IODDs necessary for the configuration of the unit, detailed information about process data
structure, diagnostic information, parameter addresses and the necessary information about the
required IO-Link hardware and software can be found at www.ifm.com.
4.1 Features of the unit
The unit can be installed in tanks of different sizes.
u Observe the notes on installation!
2 outputs are available. They can be set separately.
OUT1: • Switching signal for level limit value / IO-Link
• Switching signal for temperature limit value / IO-Link
OUT2: • Analogue signal proportional to the level
• Analogue signal proportional to the temperature
4.2 Measuring principle level
The sensor determines the level according to the capacitive measuring principle.
A II
E
An electrical field (E) is generated and influenced by the medium to
be detected. This change to the field causes a measurement signal
that is electronically evaluated.
The dielectric constant of a medium is important for its detection.
Media with a high dielectric constant (e.g. water) generate a strong
measurement signal, media with a low dielectric constant (e.g. oils)
a correspondingly lower signal.
The active measurement zone of the sensor probe is composed of
16 capacitive measuring segments. They generate measurement
signals depending on the degree of coverage.
I: Inactive zone
A: Active zone (16 active segments)
E: Electrical field
Dimensions: www.ifm.com, Ò Data sheet
4.3 Measuring principle temperature
The temperature is detected by a Pt element at the lower end of the probe and electronically
evaluated.
• Media without water content (e.g. oils) are detected directly (in contact with the medium).
• Water-based media can also be detected directly up to temperatures of 35°C.
For temperatures >35°C a climatic tube has to be installed for use in water-based media. That
means that temperature detection is indirect (not in contact with the medium).
Bekijk gratis de handleiding van IFM LT3923, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | IFM |
| Model | LT3923 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 2799 MB |
