The CF420's nominal measuring range is 0.04 to 2.0 m/s. The switch can be set to trip at any value in this range. To calculate the velocity for your application, use the following simple formula: V= Please note that the 4-20mA option is scaled over 0 to 2.0 m/sIf the flow rate is in gallons per minute, you can use the factor:gpm x 0.0000631 = m³/s 1.27 X Q
Q = Flow rate in m³ per second
D = Pipe internal diameter in meters
V = Fluid velocity in meters per second D
2 F420 S ensor +RCF 420 Flow Controller
RCF420 . The F420 is the ideal solution when there is not a lot of space to install even a compact unit or when there is a need for a mounted controller. In addition, the conical shape of the sensor´s tip allows the probe to be installed at almost any angle in the pipe, and if it is miss-aligned, accuracy will not be affected.The F420 is entirely made with 316 S.S. The RCF420 controller can operate with DC or AC supply voltage and provides an analog 4-20mA and relay (NO+NC) output. The RCF420 enclosure is made with ABS and can be mounted on a DIN rail or by using 2 fixing screws. The F420 is very similar to the CF420 with one main difference: The sensor is separate from the eletronics and it does not have an enclosed housing. This gives the F420 the ability to be installed in very small pipes, and be remotely controlled by the
DIMENSIONSWIRING DIAGRAM 4...20mA Output
Power SupplyNO and NC Contacts
Sensor signal Out 4/20mA Sonda 79” (2000mm) 0255075100% Flow Set 1/2” BSP/NPT Adjust L 5/8” Sitron-USA, Inc. 21 West Nicholai St. Hicksville, NY 11801 Ph:(516) 935-8001 Fax: (516) 935-6001 e-mail: www.sitron.cominfo@sitron.com -