Retractable probe housing EXtract 820M

manualpneumatic

Product overview
EXtract 820M is a manually operated retractable probe housing in plastic designed for installation on process tanks or piping. The manual rotary drive inserts the sensor into the process medium and retracts it into the cleaning chamber. A safety knob locks the unit automatically in the measuring or service position. Cleaning, rinsing and calibration of the sensor can be performed while the process remains running.

Your advantages

• Robust design with integrated scraper
• Automatic locking system with indicators for measurement and service positions
• Automatic safety lock when the sensor is removed
• Safe handling at elevated process pressure due to rotary drive
• Materials for wetted parts: PP, PVDF or PEEK
• Usable in ATEX areas
• Optional high-stability protection cage in Alloy C22 (for PVDF version)
• Immersion length up to 94 mm
• Wide variety of process connections and sealing materials
• Operational range up to 10 bar and 140 °C
• Easy retrofit to pneumatic drive possible

Configuration options

• Material (wetted parts): PP; PVDF; PEEK
• Sealing material (wetted seals): EPDM (FDA/USP VI); FPM (Viton); FFKM (Kalrez)
• Sensor type: 225 mm Ø12 PG13.5 gel-filled; 280 mm Ø12 PG13.5 liquid-filled
• Process connection: Flange DN50 PN16; Flange ANSI 2" 150 lbs; NPT M 1 1/4"
• Cleaning connection: G 1/8" female thread; G 1/4" female thread; 1/4" NPT female thread
• Position feedback: without; electrical (NAMUR)
• Drive unit: manual rotary drive unit

Applications

• For all Ø12/225 mm or Ø12/280 mm sensors with PG13.5 thread (pH glass and ISFET sensors, conductivity or temperature sensors, turbidity and other optical sensors)
• Chemicals
• Water and wastewater treatment
• Rough or abrasive processes
• Sensor replacement under process conditions

Technical information (specifications)
Process pressure: 0…10 bar
Process temperature: -10…140 °C
Ambient temperature: -10…70 °C
Immersion length: up to 94 mm
Sensors: 225 mm Ø12 PG13.5 (standard)
Materials: PP, PVDF/Alloy C22, PEEK
Sealings: EPDM; FPM (Viton); FFKM (Kalrez)
Process connection: Flange DN50 PN16 / ANSI 2" 150 lbs / MNPT 1 ¼"
Cleaning ports: G1/8"; G1/4"; FNPT 1/4"
Drive unit: manual rotary drive unit
Limit switches: optional electrical NAMUR switches

Characteristics / technical specifications

• Process pressure: 0…10 bar
• Process temperature: -10…140 °C
• Ambient temperature: -10…70 °C
• Immersion length: up to 94 mm
• Sensors: 225 mm Ø12 PG13.5
• Materials: PP, PVDF with Alloy C22, PEEK
• Sealings: EPDM; FPM (Viton); FFKM (Kalrez)
• Process connections: Flange DN50 PN16 / ANSI 2" 150 lbs / MNPT 1 ¼"
• Cleaning ports: G1/8"; G1/4"; FNPT 1/4"
• Drive unit: manual rotary drive unit
• Limit switches: optional electrical NAMUR switches