The Model FS Flow Switch is designed to produce a signal if the flow of material at any critical point is interrupted. This signal can then be used to correct the difficulty and/or warn the operator.

Several switches can be used, each one placed at critical points along the conveying system. A continuous flow of material past the switch holds the paddle-shaft-counter-weight assembly out of the actuated position. If flow stops, the paddle is allowed to pivot and actuate the switch. When this occurs a signal is generated to start or stop supporting machinery, or to activate visual or audible alarm systems.

Model FS is also fully adjustable. The paddle and counterweight assemblies can be positioned at various points along the shaft and rotated to any angular position. The shaft itself will adjust laterally. Inside, the actuating cams can be rotated so that switch actuation will occur at pre-determined points.

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Item #

Ambient Temperature

Enclosure Material

Enclosure Rating (CSA)

Enclosure Rating (UL)

Mounting

Contact Type

Electrical Connection

N/A < 104 °F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X N/A NEMA Type 3S, 4, 4X, 5 N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A < 104 °F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X N/A NEMA Type 3S, 4, 4X, 5 N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A < 104 °F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X N/A NEMA Type 3S, 4, 4X, 5 N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A < 104 °F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X N/A NEMA Type 3S, 4, 4X, 5 N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X; Type 9: Class II, Groups E, F, G N/A NEMA Type 3S, 4, 4X, 5; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X; Type 9: Class II, Groups E, F, G N/A NEMA Type 3S, 4, 4X, 5; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X; Type 9: Class II, Groups E, F, G N/A NEMA Type 3S, 4, 4X, 5; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
N/A -58°F to 104°F N/A 319 Cast Aluminum N/A NEMA Type 3S, 4, 4X; Type 9: Class II, Groups E, F, G N/A NEMA Type 3S, 4, 4X, 5; Type 9: Class II, Groups E, F, G N/A 3 Holes; Surface Mount N/A Dry Contact N/A 3/4" NPT
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