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.
| 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 |
