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Application / Function
Application The Soliswitch FTE31 is a paddle point level switch used as a full, empty and demand alarm on silos containing solids. Its construction and materials make the unit suitable for use in the food industry. Certification to dust Zone 10 and dust Zone 20 provides more application possibilities.
ApplicationexampleFunction A reduction gear and synchronous motor rotate the shaft and paddle. If the paddle is stopped by material covering it, the hinged motor in the housing moves from the rest position to the switch position. This movement operates two switch contacts - the first is for external level indication and the second switches the power off to the motor. When the medium level falls below the paddle, the hinged motor returns to its rest position, the two contacts switch to normal operation, and the paddle starts to rotate. Intermittent loads that operate against or even in the same direction of rotation are evened out by using a slip clutch.
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DimensionsTechnical data
Technicaldata Installation Dimensions(ininches)
The installation area must be vibration-freeDimensions in inch
Correct installation:a) Vertically from top of silob) Angled from the topc) From the sided) With protective cover against falling solids Incorrect installation:e) In direction of solids flowf) Installation coupling too longg) Horizontally with shaft length > 300 mm; not valid for version with
strengthened shafth) Angled from below
Power supplySupply voltage 230 V AC (relay 250 V AC)
20 to 28 V DC (relay 250 V AC)Cable entry PG 13.5
Operating conditionsMechanical load Max. 60 N on the shaft;
Max. 1500 N on strengthened shaftLoad in the rope Max. 1500 NOperating pressure 7 to 26 psi (0.5 to 1.8 bar)Ambient tempersture -4 to +140 °F (-20 to +60 °C)Degree of protection IP 65 with closed lid; IP 20 with open lidVibration protection IEC 654-3, dimensions V.S.1
(v < 3 mm/s, 1 < f < 150 Hz)Process temperature -4 to +176 °F (-20 to +80 °C)Solids weight 100 g/lGrain size Up to 50 mm (1.97”)
Mechanical constructionMaterial Housing: Plastic with 30 % fiber glass;
Application / FunctionOverview Technical data Dimensions
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Soliswitch FTE31, thread NPT Order no. Price/pcs. in USDExecution Power Supply 1 to 5 6 to 10 11 to 35Shaft 75 mm; compact 115 V AC, relay 250 V AC, 100 mA -10 A FTE31-B2A111 353.00 328.00 311.00Prices valid until 09.30.2013 in U.S. dollars per unit (not including shipping and applicable sales tax).See Endress+Hauser, Inc. Terms and Conditions of Sale for shipping, tax, and payment terms.
