2852-FCS Remote Mounted Foam Control Switch

2852-FCS Remote Mounted Foam Control Switch

Overview

The 2852-FCM provides reliable monitoring of foaming conditions in process applications. The sensing probe is tuned to the normal operating conditions of the gaseous or air phase in your process. The intrusion of foam around the probe will cause a capacitance change that is monitored by the remote controller. Two alarm setpoints with full differential are available for control and alarm functions.

Typical applications include free water knock-out (FWKO) systems, gas phase separation, pre-compressor main-fold protection, and wastewater treatment facilities. The unique Arjay pulse module circuit makes this unit ideal for foam suppression, interface and control.

Features & Benefits

  • No moving parts
  • Remote electronics via standard twisted pair
  • Explosion proof probe is standard
  • Probe is available with Intrinsically Safe
    option for alternative HazLoc protection
  • High corrosion resistant Teflon and stainless
    steel wetted parts
  • Capacitance technology responds to all
    foam types
  • HF capacitance technology does not require
    routine cleaning
  • Easy calibration and control set-up

Technical Specifications

Control Unit

Operating Temp. -20˚C to +55˚C
Resolution .04 pF at 1,000 pF
Accuracy 0.2% of full scale pF
Power Input 12 vdc or 24 vdc or 100-240 vac +/- 10%
Alarm Relay Two independent 3 amp SPDT dry contacts with differential control
Analog Output 4 mA normal / 20 mA alarm, non-isolated
Communication Modbus RS-485
Enclosure Type 4 / IP 66 painted steel or Type 4X / IP 66 polycarbonate or SS
Optional Light, buzzer, beacon

Probe

Probe -60˚C to +260˚C
PMC -40˚C to +55˚C
Wetted Parts 316SS and Teflon

Documentation

Drawing

Brochure

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