Measuring Wheels APPLICATION In order to avoid errors when using measuring wheel actuation, it is important that the slip is kept as low as possible. When choosing a profile (surface structure), special attention must be given to the properties the material being measured, such as elasticity, thickness and interaction resistance. Slippage is also influenced by the width of the contacting measuring wheel, the pressure of contact, the tensile stress in the material that is being measured and the angle of wrap. The angle of wrap should be as large as possible. Wheel bodies are made of cast metal or plastics (see designation). The position of the measuring wheel should be chosen such that the material moves away from the bearing of the sensor. Use the following measuring wheels for different transmission ratios of counters: Counter transmission ratio 500:1 50:1 5:1 2:1 1:2 1:5 1:20 CORRECT MEASURING WHEEL OR PULSE GENERATOR WRONG MEASURING WHEEL OR PULSE GENERATOR MEASURING WHEEL CIRCUMFERENCE/ TRANSMISSION RATIO Components 2000 measuring wheel circumference 0.2 m (1/5 yd.) 0.2 m (1/5 yd.) 0.2 m (1/5 yd.) 0.5 m (1/2 yd.) 0.2 m (1/5 yd.) 0.5 m (1/2 yd.) 0.2 m (1/5 yd.) ENCODERS COUNTERS CONTROLLERS INDICATORS RELAYS PRINTERS CUTTERS 339 Measuring Wheels OVERVIEW Profile 1 Profile 2 1 with rims, aluminium with fine cross knurling Used e.g. for threads and yarns Profile 3/4 2 Rubber profile, glued on Used e.g. for paper and cardboard, cable measurement, non-greasy metal, fleece, wood (rough or finished), soft and hard plastic materials; A = soft, highly adhesive rubber coating B = good-grip, low-wear rubber Profile 5 3 Rubber coating with parallel knurling, vulcanized Used e.G for rubber, leather. textiles, floorings, glass 5 With rims, aluminium with parallel knurling Used e.g. for threads, yarns, ribbons 4 Aluminium with parallel knurling Used e.g. for rubber, soft plastic materials, wood with rough surface, certain textiles MEASURING WHEEL circumference/transmission ratio Profile 6 Profile 7 6 Plastic coated Used e.g. for wire, greased metals, steel profiles 340 Components 2000 ENCODERS COUNTERS 7 Card band Used e.g. for carpets and coarse textiles CONTROLLERS INDICATORS RELAYS PRINTERS CUTTERS Measuring Wheels ORDER INFORMATION Aluminium Technical data Circumf. 0.2 m 0.5 m 1/5 yd. 1 Fu PLASTIC 0.2 m 0.5 m Profile Width of contact surf. mm Bore 4.0 mm 6.0 mm 7.0 mm 10.0 mm 0 601 014 0 601 018 0 601 118 0 601 020 0 601 015 -- 0 601 048 -- -- -- 0 601 017 -- -- 0 601 092 0 601 192 -- -- 0 601 049 -- -- 0 601 093 0 601 094 0 601 050 0 601 150 0 601 059 0 601 121* 0 601 052 0 601 063* 0 601 054 0 601 037 0 601 096 0 601 071 0 601 171 -- -- -- 0 601 151 0 601 156 0 601 157 -- 0 601 163 -- -- -- -- -- -- 0 601 301 0 601 300 -- -- -- 1 2A 2B 2A 2B 4 4 5 2A 2B 3 4 5 6 7 1 5 2A 2B 4 12 12 24 24 20,5 20 16,5 25 0 601 023 -- 0 601 026 -- 25 25 16 25 26,5 4 16,5 25 25 -- -- -- -- -- 0 601 034 -- -- -- -- -- -- -- -- -- -- -- -- 1 4 6 4 25 25 0 601 100 -- -- -- -- -- * meets PTB requirements Inquire for other measuring wheels Components 2000 ENCODERS COUNTERS CONTROLLERS INDICATORS RELAYS PRINTERS CUTTERS 341