RFA Ribbon Filament Tension Transducer / Load Cell
A cantilevered load cell designed to measure the tension of a ribbon, filament, wire, cable or very narrow web process.
Patterned after the legendary Model C transducer, the Ribbon Filament Transducer’s cantilevered form factor is ideal for wire, plastic, rubber, metal, glass, composite and other flexible substrates. Three standard wheels are available – ribbon (1-4 inches wide), filament and an adapter wheel which functions as a hub for mounting custom wheels. Three mounting styles are available: Screw, Flange and Pillow-Block.
HOW IT WORKS
Tension is measured by high performance semiconductor strain gauges embedded on a dual cantilevered beam and connected in a full Wheatstone bridge configuration. As the ribbon or filament passes over a rotating wheel assembly coupled to the end of the transducer, the beam deflects slightly in response to tension. This produces a voltage signal proportional to tension. The RFA transducer mounts cantilevered on a machine frame and may be connected to an indicator or controller for display or automatic control of web tension.
For the measurement of web widths wider than 4 inches, see the Narrow Web Transducer.
FEATURES
• 5 year tension-free warranty
• Highly accurate and reliable semiconductor strain gauge technology
• Small enough to meet tight space requirements
• Versatile and easy-to-install
• Wheel face lengths to up to 4 inches
• High performance design and materials for long life
• Load Ratings from 10 – 150 lbs (45 – 667 N) with wide operating range
• Special wheels are available
BENEFITS
• Accurate tension measurement of any narrow web, ribbon or filament
• Improved product quality and consistency from any web or filament process
• Reduced material waste
• Higher production with less downtime
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ELECTRICAL
Excitation: 5 VDC Max (Std), 10 VDC Max (XR Option)
Output: 100 mV/V, Nominal
Strain Gauge: Semiconductor, 120 Ohms (±20 Ohms), Nominal
Circuit Configuration (Pair): Full Wheatstone Bridge
Non-Repeatability: ±1/4% Full Span (FS)
Combined Non-Linearity & Hysteresis:
±1/2% Full Span (FS)
Temperature Range: -10°F to 200°F (-23°C to 93°C)
Temperature Coefficient:
.02% FS per °F, Typical (.036% FS per °C)
Mating Electrical Connector (Mil-Spec) P/N:
106-0050
Connector Pin Assignment:
A = Signal Output (-) D = Signal Output (+)
B = Excitation (+) E = Excitation (-)
C = Excitation (-) F = Excitation (+)
MECHANICAL
Overload Capacity: 4X Load Rating, Minimum
Deflection of Sensor Beam: .005 Inch Max (.127 mm)
Materials: 6061, 7075-T6 Aluminum; 303, 304 Stainless Steel; Black Oxide Alloy Steel
Wheel Weights:
Filament = 0.49 lb (222 g)
Ribbon = 0.45 lb (204 g)
Adapter = 0.64 lb (295 g)
REFERENCE DOCUMENTS
Complete the form below and a DFE Applications Engineer will contact you shortly.
DFE does not share information with 3rd party advertisers.
