The CF12 Thermal Dispersion Flow Switch with Exproof Housing (GX) comes standard with a Universal Power Supply: 24Vdc or 85 to 264Vac. This unit offers reliable liquid and gas flow detection ideally suited for just about any Flow/ No Flow application. Unlike the CF12 with either the small nylon housing (N1) or the small aluminum housing (G1), the CF12 with large aluminum housing (GX) comes with two independent SPDT relay.

Like all of Sitron’s products, the CF12 can be configured to accommodate our customer’s unique process control requirements. All models can be ordered with a great variety of threaded, flange, or sanitary process connections as well as Halar or epoxy coating for aggressive mediums. The CF12 is also offered with extended necks for higher temperature applications up to 150 ºC. And while the CF12 is designed to monitor flow status of liquids and gases, with its no moving parts technology it can also be an ideal solution for liquid level detection.

The GX comes standard with a glass window which enables visualization of LED switch status. The GX housing comes with the following certifications: UL, cUL, IECEX and ATEX for installation in hazardous environments.

CF12 - Flow Switch

Application: Flow for liquids and gas level for liquids only
Power Supply: DC: 24Vdc (± 10%) / AC: 85...264Vac (50/60hz) and 125Vdc
Consumption: 130mA
Output: Relay (2 SPDT) 5A - 250Vac
Set-Point Range: Liquids: 3cm/s to 3m/s / Gases: 5cm/s to 5m/s
Accuracy: ± 10%
Response Time: 1 to 10s
Gradient Temperature: 15°C/min
Flow Rate Indication: Red led - flow is below setpoint Yellow led - flow is at setpoint Green led - flow is above setpoint
Enclosure Material: Aluminum with Glass window
Electrical Connection: 2 x 3/4” NPT
Process Connection: BSP, NPT, flange, or Sanitary connection
Body Material: 316 S.S (Hallar coating upon request)
Work Temperature: -10 to + 80°C (Sanitary option: peaks of 120°C)
Max Pressure: 100 Bar (others upon request)
Class Protection: IP66
Certification (Optional): ATEX, DEMKO 07 ATEX 0622294 / 0539 II 2 G EX d IIC Gb / 0539 II 2 D Ex tb IIIC Db / IECEx / IECx UL 08.0005U / Ex d IIC Gb / Ex tb IIIC Db
Classification: Class I, Div. 1, Groups B, C, D / Class II, Div. 1, Groups E, F, G / Class III
NEMA Type 4X: Class I Zone 1 A Ex d IIC / Ex d IIC (Canada)

Documentation for download

  • Pump protection
  • High flow alarm
  • Low flow alarm
  • HVAC monitoring
  • Leak detection
  • Supply line control
  • Fill/Drain control
  • Lubricant monitoring
  • Cooling water monitoring
  • Heat exchanger control
  • On/Off valve monitoring
  • Oil flow detection
  • Air flow monitoring

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