Tel: +33 (0) 1.39.47.12.22 ; E-mail: contact@larco.fr

PIPE FLUID DETECTOR


DOCIL 501B Probe

  • 501B probe is a pipe fluid detector.
  • It can be used in pipes, for instance, to trigger an alarm if no product is in motion within the pipe.
  • Docil 501B probe can also be used as a low level detector at the bottom of a tank.

PIPE FLUID DETECTOR
DOCIL C 501B PROBE

Détecteur présence produit 510B Larco
Pipe Fluid Detector - Larco
  • DOCIL C 501 B probe's operating mode is based on :
  • LARCO's optical sensor : DOCIL SENSOR
Capteur optique Docil Larco 150
Capeur Docil - Larco

PRINCIPLE OF THE DOCIL SENSOR

  • Docil sensor comprises a glass cone and an electrical circuit including among others an emitting infrared light signal and a receiver.
  • Docil sensor operates following the optical principle of reflection/refraction.

Characteristics
of DOCIL Sensor

  • Accuracy : 0.1mm
  • Response time : <1ms
  • ATEX certified
  • Indeed, when glass cone is not immersed in fluid, optical signal is integrally reflected:
Capteur Docil verre_non immergé_Larco
  • Though, when the cone is immersed in a fluid (hydrocarbon), light signal is refracted, the receiver does not receive the signal anymore and the alarm is triggered:

DOCIL C 501 B DETECTOR'S CHARACTERISTICS

  • Detection : Optical
  • Connection : 1’’ ¼ NPT
  • Simple wiring : for a probe containing 1 or 2 sensors, only one wire 1 pair (type 01-IP-09-EG-FA) is required to connect it to the control system.
Détecteur présence produit 510B Larco
Pipe Fluid Detector - Larco

GLOBAL ARCHITECTURE

The loop including DOCIL C 501B detector, safe barrier and 9533SIL2 control board is SIL2 certified