Capacitive sensor

Capanivo® - CN 7121 - Synthetic

Application area

The capacitive level limit switch Capanivo® CN 7121 is used as a full, demand or empty detector as well as for leakage detection in all liquid applications. Made entirely of durable, chemical resistant plastic materials, the sensor is ideal for aggressive media.  Even measurement from outside the vessel without direct material contact is possible. Thanks to the innovative IO-Link electronics, sensor data can be digitally transmitted quickly and easily. The sensitivity is adjusted in a user-friendly way via a potentiometer directly at the sensor.

Technical Data

Measurement principleCapacitive
Measuring task
  • Point level measurement
  • Interface level measurement
Version
  • Housing Ø 65 mm
  • Housing Ø 35 mm
Medium
  • Liquids
  • Solids
Mounting position
  • top
  • horizontal
  • angled
  • in down Pipes
  • in Pipes
  • in a Bypass
  • in a Standpipe
  • out of vessel
Ambient temperature-40°C … +85°C (-40 … +185°F)
Process temperature-40°C … +125°C (-40°F … +257°F), CIP/SIP up to 150°C (302°F)
Process pressure-1 bar … +10 bar (-14.5 psi … +145 psi)
Minimum sensitivityDK ≥ 1.5
Housing materialPlastics (PBT/PC)
Housing protection ratingIP68, Type 4X
Threaded connection
  • ≥ G 1″
  • ≥ NPT 3/4″
Flange connection≥ 1″
Wetted materials
  • FKM
  • FFKM
  • PPS
  • PVDF
Mechanical loadprobe: 400 N
Accuracy
Min. immersion length92 mm (3.6″)
Max. immersion length92 mm (3.6″)
Power supply9…33V DC
Signal output
  • Relay
  • Transistor
  • 8/16 mA
  • 4…20 mA
  • IO-Link
Approvals
  • CE
  • ATEX
  • IEC-Ex
  • INMETRO
  • TR-CU
  • General purpose
  • FM
  • CSA
  • KC
  • CCC
  • UKCA
Explosion protectionIntrinsic Safe (Ex i)
Hygienic / Pharma
  • EG 1935/2004
  • FDA
Ship approval
Overfill protection
  • WHG
  • VLAREM
SIL qualification
Further approvals
User Interface
  • PACTware (DTM)
  • Potentiometer
  • IODD
  • IO-Link Master
Optical indicatorLED
Adjustment possibility
  • adjutable sensitivity
  • adjustable output delay
  • switchable logic (Fail Safe High – Fail Safe Low)
  • adjustable switching point
  • adjustable hysteresis