SenTec

FST120 Display type piston flow switch

FST120 Display type piston flow switch On-line mounting, mechanical flow switch, for liquid or gaseous media. Sturdy plastic, aluminum or stainless steel case  is optional. Minimal pressure loss, good repeatability, pollution resistance, complete isolation of mechanical and electronic parts, suitable for small flow economy. With switch setting scale, users do not need to set on site. LED display switch status, double switch output is available.

Category

The flow switch is mainly installed on-line or plug-in in medium pipelines such as water, gas and oil to monitor the water flow in the water system. When the water flow is higher or lower than a certain set point, the output alarm signal is triggered and transmitted to the unit, and the system can make corresponding indication actions after obtaining the signal. Avoid or reduce host “dry burn”.
The flow switch is to instruct the switch of the system according to the flow.
Set the upper or lower limit for the flow switch. When the flow reaches the limit, the flow switch will send a signal or an alarm, and the system will run or stop. Generally, systems that require flow will use flow switches.
Depending on the system, as well as the flow switch model and other factors, the place of use is also different, which should be determined according to the specific situation.

FST120 Display type piston flow switch used for Gas liquid dual, industrial automation/mechanical equipment/air compression industry/refrigeration and air conditioning.

Parameters

Setting rangeSee parameter table for details
Accuracy±5% total range
HysteresisAt least 0.6L/min depending on the switching point
Switch setting scaleMedium of water, temperature 20°C,the horizontal installation state for calibration.

Installation location medium and temperature changes will have a slight impact on the switch value

LED displayDC power supply LED display switch status, AC without LED display.
OutputDry reed switch, capacity 24VDC/250VAC,100mA
Withstand pressure10bar (plastic), 50bar(aluminum), 100bar(stainless steel)
Average pressure loss0.3bar (at 25L/m in)
Medium temperatureMax 90℃
Protection classIP65
FST120 materialMaterial: shell: P0M plastic piston: POM plastic Spring: stainless steel seal: NBR, Spring: stainless steel seal: NBR
FST120 materialMaterial: shell: anodized alumina piston: POM plastic, Spring: Stainless steel seal: NBR
FST120 X materialcase:stainless steel piston: POM plastic, Spring: stainless steel seal: NBR
Wiring modeM12 connector

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