EXtract 821

plastics, extended immersion

Extract 821 is a pneumatically operated retractable probe housing made of plastics to be attached on process tanks or tubing with an extended immersion length up to 207mm. The drive unit inserts the sensor into the process medium and back into the cleaning chamber. When reaching the final position of “measuring” or “service”, the probe housing responds automatically by a pneumatic position signal. Cleaning, rinsing and calibration of the sensor is possible while the process is running.

Datasheet

Your advantages

  • Robust design, integrated scraper
  • Extension of sensor-lifetime and reducing of maintenance efforts
  • Automatic safety lock while sensor is removed
  • Plug and play installation, colour- and size-coded connection system
  • Integrated limit switches
  • Usable in ATEX-areas
  • PVDF, PEEK
  • High stability protection cage in Alloy for option PVDF
  • Immersion length up to 194mm
  • High variation of process connections and sealing materials
  • Up to 10 bar and 140 °C
  • Can be fully automated with electropneumatic control unit EXmatic 470
  • Drive unit free of maintenance

Configuration

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Specifications

Process pressure: 0…10 bar
Process temperature: -10…140 °C
Ambient temperature: -10…70 °C
Immersion length: up to 194 mm
Sensors: 325 mm Ø12 PG13.5
Materials: PVDF / Alloy C22, PEEK
Sealings: EPDM, FPM (Viton), FFKM (Kalrez)
Process connection: Flange DN50 PN16 / ANSI 2“ 150lbs
Cleaning ports: G1/8", G1/4", FNPT 1/4"
Operating power: compressed air 4...6 bar
Limit switches: pneumatic, integrated

Dimensions

Applications

  • For all kind of Ø12-325mm sensors or Ø12-380mm liquid filled sensors with thread PG13.5 (pH-glass- and ISFET sensors, conductivity- or temperature sensors, turbidity and other optical sensors)
  • Chemicals
  • Water treatment
  • Rough processes
  • Requirement of automated sensor cleaning or calibration

Our Probe Housings

Immersion fittings
EXdip 910EXdip 920
Control units for pneumatic retractable housings
EXmatic 470
Control units - accessories
EXconnect 170
Flow-through fittings
EXflow 710EXflow 720