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- Easy installation
- Optical and automatic rotation control (optional)
- Weight of solids can be adjusted without the need for tools
Specs at a glance
Function Level switch Medium Solids weight ≥ 80 g/l (4.99 lb/ft³) Operating pressure (abs.) 0.5 to 2.5 bar (7.25 to 36.3 psi) Medium temperature –20 to +80 °C (–4 to 176 °F) Soliswitch FTE20
Product / Version Price / pcs. in CAD Order code Version, Length Approval Process Connection; Material Power Supply 1 to 3 4 to 10 11+ Shaft, 75mm / Shaft, 100mm / Shaft, 120mm / Shaft, 200mm / Shaft, 300mm Non-hazardous area NPT1-1/2 male thread; PBT 115VAC 352 328 310 FTE20-AA11xx31 20-28VDC 467 434 411 FTE20-AA11xx11 NPT1-1/2 male thread; 303 115VAC 429 399 377 FTE20-AA14xx31 20-28VDC 543 505 478 FTE20-AA14xx11 Classified areas NPT1-1/2 male thread; PBT 115VAC 505 470 444 FTE20-xx11xx31 20-28VDC 619 576 545 FTE20-xx11xx11 NPT1-1/2 male thread; 303 115VAC 581 540 511 FTE20-xx14xx31 20-28VDC 695 647 612 FTE20-xx14xx11 Prices valid until 30.09.2019 in CAD per unit (not including shipping and applicable sales taxes). See
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Application
The Soliswitch FTE20 is a paddle switch for granular solids. Its robust and compact design makes the point level switch an ideal sensor for detecting the full, empty or refill status in applications with bulk solids, such as in silos containing solids. Typical application areas are point level detection in e.g. cereals, sugar, cacao, animal feeds, washing powders, chalk, dry plaster, cement, granulates and wood chips.
Function
The shaft and paddle are driven using a reduction gear and synchronous motor. If the paddle is stopped by material covering it, the hinged motor in the housing moves from the rest to the switch position. This movement operates two switch contacts; the first is for external level indication and the second switches off the power to the motor.
The paddle starts to rotate once the medium level falls below the paddle, the hinged motor returns to its rest position and the two contacts switch to normal operation. Intermittent loads that operate against or even in the same direction of rotation are evened out by a slip clutch.
Application example
a) Functioning as full sensor
b) Functioning as demand sensor
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Technical data
OutputOutput signal Binary Response time From standstill of the paddle until output of the switching signal: 20°, corresponds to 3.5 s Switching capacity relay EN 61058: 250 V AC 5E4, 6(2) A;
L 1054: 125 to 250 V AC, 5 A; 30 V DC, 8 A;
Min. switching load 300 mW (5 V/5 mA)
Function Detection of full or refill status Automatic rotation monitoring (optional) Detection of blockage or failure of the drive unit Power supplySupply voltage 20 to 28 V DC; 115 V AC; Power consumption Max. 3.5 VA Cable entries 2 × cable gland, M20 × 1.5 (optionally 1 × cable gland M20 × 1.5 and indicator lamp) Operating conditionsSide load on the shaft Max. 60 N Load on the rope Max. 1 500 N Operating press. (abs.) 0.5 to 2.5 bar (7.25 to 36.3 psi) Ambient temperature –20 to +60 °C (–4 to 140 °F) Degree of protection IP 66 Shock resistance as per EN 60068-2-27: 30g Vibration resistance as per EN 60068-2-64: 0,01g²/Hz Medium temperature –20 to +80 °C (–4 to 176 °F) Solids weight ≥80 g/l Grain size ≤50 mm (1.97") Mechanical constructionMaterial – Housing: Polycarbonate
– Captive screw cap: Polyamide
– Cover seal: Silicone
– Shaft / Rope extension / Paddle: Stainless steel
– Process seal: Synthetic/organic fiberelastomer sealing (nonasbestos) NPT versions have no process seal and need to be sealed at the thread by the customer
– Process connections: Stainless steel or PBTShaft seal NBR Shaft speed 1 min-1 Process connection NPT1¼"; NPT1½" Electrical connection Terminals with spring terminal design, Permitted cable cross-sections 2.5 mm² solid, 1.5 mm² flexible with wire end ferrule with plastic ferrule ApprovalsEx approval IECEx Ex ta/tb IIIC Da/Db
FM DIP/II, III/1/E-GDimensions in mm (in inches)
A: Process connection NPT1¼", NPT1½"
B: Indicator light (optional)
L: Length of shaft 75 to 300 mm (2.95" to 11.81")
Installation according to instruction manual.
Electrical connection
Protective ground
N (AC), L– (DC): Power connection
L1 (AC), L+ (DC): Power connection
H1, N/L–: Connection for signaling empty/full status detection (optional)
11: Changeover contact
12: Normally closed contact
13: Normally open contact* Option
Installation
Correct installation positions of the device:
1: Vertical from the top
2: Angled from the top
3: From the side
4: From the side with protective cover against falling solids
5: From belowIncorrect installation positions of the device:
6: In direction of solids flow
7: Installation coupling too long -
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