Description
The level limit switch Capcont M with integrated evaluation electronic are compact fill level limit switches for supervision of fill levels in liquids and solid materials in containers or pipelins at process temperatures from -30°C to +125°C and process pressures from -1 up to 10 bar.
The sensor is suitable for limit value detection or also as dry run protection in liquids and viscous substances but also in powdery and fine-grained materials, like e.g. grain, flour, powdered milk, mixing food, cement, chalk or gypsum. It can be used in electrically conductive as well as non-conductive materials.
Function
The fill level limit switch Capcont M is a capacitive operating sensor with limit value detection.
Electroden rod, filling material and container wall realizes an electrical capacitor. A fill material changing causes a capacity change that is evaluated by the electronic and is converted into a corresponding switching reaction.
At transgression or underrun of the limit value a switching signal at the PNP switching output is created. This allows a control of relays, contractors, magnetic valves, light signaling units, horn as well as SPS inputs. A plugable yellow LED indicates an active PNP switching output. A possibility for change over the minimum / maximum safety is integrated.
| Spannungsversorgung |
10 V bis 35 V DC |
| Restwelligkeit |
≤ 2 VSS |
| Stromaufnahme |
≤ 10mA Schaltausgänge im Leerlauf |
| Isolationsspannung |
75 V DC |
| Funktion |
PNP-schaltend auf +Vs, Prinzip (NO/NC) |
| Ausgangsspannung |
VS1 ≥ +Vs – 2V |
| Ausgangsstrom |
≤ 250mA strombegrenzt, kurzschlussfest |
| Anstiegszeit |
≤ 30µs RL ≤ 3000 Ω
IL ≥ 4,5mA |
| Verzögerungszeit |
≤ 200ms |
| Schaltzyklen |
≥ 100.000.000 |
| Schalthysteresen |
Abhängig vom Medium |
| Empfindlichkeitsabgleich |
Trimmer mehrgängig |
| Elektrodenstabisolation |
PTFE – Polytetrafluorethylen (Teflon) |
| Prozessanschluss |
Stahl 1.4404 (AISI 316L), Stahl 1.4571 (AISI 316Ti) |
| Anschlussgehäuse |
Aluminium-Druckguss, pulverbeschichtet |
| Kabelverschraubung |
Verschraubung: Messing, vernickelt, Dichtung: CR / NBR |
| Dichtung |
FPM – Fluorelastomer (Viton), EPDM – Etylen-P |
Examples of supplied versions: expand / close
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