Flow Switch

Thermo-Flo ™ Liquid & Gas Flow Switch

Application

Offered in liquid and gas configurations for low-flow detection, the general purpose flow switch is a great choice for a diverse range of relatively clean, non-coating media. Liquid examples include deionized water and sulfuric acid. Gas examples include nitrogen and scrubber exhaust fumes. The 1A relay provides a reliable switch interface with remote devices such as a PLC, SCADA or alarm. The short sensor is intended for use in pipe or ducting from 1/2” to 11/2”; the long sensor is applied in 2” and up. The liquid switch set point may be adjusted from .04 to 3 fps, and the gas switch from 1 to 90 fps.

Features

Adjustable set point with LED for flow or no-flow status indication

Solid state sensor is not damaged by over-ranging flow velocities

Set Point

The clear adjustment knob doubles as an LED to indicate the flow status.

Specifications

Set point range:	FT10: 0.04 to 3 fps (.012 to 0.91 mps) GT10: 1 to 90 fps (0.3 to 27 mps)
Factory set point:	FT10: 0.2 fps (.06 mps) GT10: 10 fps (3 mps)
Repeatability:	±0.5% of set point @ fixed temperature
Response time	1-10 seconds
Set point adjust	Potentiometer
Supply voltage	12-36 VDC
Consumption	70 mA maximum
Contact type	(1) SPST relay
Contact rating	60 VA
Contact output	Selectable NO/NC
Process temperature	F: 32° to 140° C: 0° to 60°
Electronics temperature	F: -40° to 140° C: -40° to 60°
Pressure	150 psi (10 bar) @ 25°C, derated @ 1.667psi (.113 bar) per °C above 25° C
Sensor rating	NEMA 4X (IP65)
Sensor material	1__5: PP-Ryton® 5__5: PVDF
Cable jacket mat	1__5: PP 5__5: PFA
Cable type	4-conductor, #22 AWG (shielded)
Cable length	Standard: 10' (3m) Special order: 25' (7.6m) or 50' (15.2m)
Process mount	3/4" NPT (3/4" G / Rp)
Mount. gasket	Viton®
Classification	General purpose
CE compliance	EN 61326 EMC EN 61010-1 safety