OMEGA™ FST-200 Series flow switches use thermal dispersion technology to create a very accurate and economical method of sensing flow. Monitor fluids from 0.4 to 1.2 specific gravity, 1 to 300 cp, and pulsating flow from 10 to 100 pulses per minute. The sensors incorporate two temperature probes, one of which is heated. The flow of liquid reduces the temperature of the heated probe, decreasing the temperature differential with the non-heated probe. OMEGA’s LVCN-131 and LVCN-141 of controllers can easily be interfaced to perform a variety of control functions.
SPECIFICATIONS Range: 0.04 to 3 fps (liquids) Accuracy: ±5% of setpoint at constant temperature and flowrate Response time: 10 seconds after initial 30 sec warm up Setpoint Drift with Fluid Temperature: 0.5% per °C Voltage Input: 12-36 Vdc@70 mA Contact Output Mode: selectable, NO or NC states Fluid Temperature: 0 to 60°C (32 to 140°F) Max Fluid Pressure (PP or PVDF): 150 psi @ 25°C (77°F) derated @1.667 psi per °C above 25°C (77°F) Wetted Materials: PP and PVDF Cable Specifications: 3 m (10 ft) Max Cable Length: 305 m (1000 ft) Dimensions: 76.2 or 114.3 x 26.7 mm dia. (3.0 or 4.5 x 1.05')
Rated 1 out of
Great product! Unacceptable serviceI have one installed in a housing I made myself, and it has been working perfectly for about a year now.
Date published: 2017-05-12
Rated 3 out of
Flow Switch service replacementsSensors worked good, Many challenges to overcome for DC power supply, DC relay connections, and additions of DC to AC relays for proper operation
Date published: 2020-08-03
Rated 1 out of
Documentation sucksI guess these sensors connect themselves because there is ZERO info on the color code and wiring for NPN or PNP.
No flow data either?????