NARROW WEB TENSION TRANSDUCERS Model NW

Product catalog summary

Overview: The NW Transducer by Dover Flexo Electronics is a specialized device designed for measuring tension in narrow web materials such as paper, film, and foil. It features a cantilevered idler roll with integrated dual tension sensors, offering high accuracy and corrosion resistance due to its stainless steel and aluminum construction.

Specifications: The transducer is available in three roll diameters: NW0 (2.25 inches), NW1 (3 inches), and NW2 (3.5 inches). It operates with a wide tension range and can be mounted using either a four-bolt flange or a single bolt. The device is compatible with standard Dover Tension Controllers or Indicators and includes an option for a built-in Indicator Display.

Benefits and Features: Key benefits include improved product quality, reduced waste, and no impact on the web such as steering effects or breakage. The transducer is easy to install and requires minimal machinery space. It offers high accuracy and includes an idler roll, eliminating the need for additional purchases.

Options: Various options are available, including Extended Range (XR), Hard Coat (HC), Indicator Option (IND), Metric Mount Stud (MMS), and others. These options allow customization for specific applications, such as increased excitation, tension display, and different roll materials.

Mechanical Specifications: The transducer's load rating is determined by maximum web tension, wrap angle, and roll weight. It is crucial to select the appropriate load rating to ensure accurate tension measurement. The device can handle load ratings from 12 to 400 lbs, with overload ratings of 500 lbs for sizes 0 and 1, and 1000 lbs for size 2.

Electrical Specifications: The transducer requires a 5 Vdc excitation (10 Vdc with XR option) and provides a 500mVdc output (1 Vdc with XR option). It features a half-bridge configuration at each end of the idler roll, with a gage resistance of 100 Ohms.

Installation and Ordering: The transducer can be installed in any orientation, and specific configurations can be ordered by matching labeled digits with desired options. The NW Size 2 transducer is not a direct replacement for the previous NWI model due to differences in electrical connectors and roll positioning.

Catalog excerpts

NARROW WEB TENSION TRANSDUCERS Model NW-1

DOVER FLEXO ELECTRONICS, INC. ISO 9001 CERTIFIED NARROW WEB TENSION TRANSDUCERS

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NARROW WEB TENSION TRANSDUCERS Model NW-2

■ Wide operating tension range. ■ Two mounting styles: four bolt flange or single bolt. ■ Nine roll widths up to 20 inches. Special widths available. ■ Used with any standard Dover Tension Controller or Indicator, or with built-in Indicator Display option (Size 2 only). ■ Requires little machinery space. NW NARROW WEB Tension Transducer The NW Transducer is a specialized bearing-mounted cantilevered idler roll with integrated dual tension sensors for measuring tension in a moving narrow web of paper, film, foil or other material. Constructed of stainless steel and aluminum for excellent corrosion...

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NARROW WEB TENSION TRANSDUCERS Model NW-3

ELECTRICAL Excitation: 5 Vdc (10 Vdc with XR option) Output: 500mVdc, nominal (1 Vdc with XR option) Gage Resistance: Half bridge at each end of idler roll. 100 Ohms (± 20 ohms), nominal, each gage. Non-Repeatability: ± 1/4% FS, typical Combined Non-Linearity and Hysteresis: ± 1/2% FS Temperature Range: -10°F to 200°F (-23°C to 93°C), IND Option: 40° to 104°F (4°C to 40°C) Temperature Coefficient: 0.02% per ° F, typical (0.036% per °C), Mating Electrical Connector: ITT Cannon KPT06F10-6S Electrical Connector Position: Connector position is shown by looking at end of roll. Standard is 6 o'clock,...

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NARROW WEB TENSION TRANSDUCERS Model NW-4

DIMENSIONS FOR AMPLIFIER MODULE FOR IND OPTION Ti26 (shown with DIN Rail Clip option). Power input is 24Vdc THE TENSION CONTROL SPECIALISTS DOVER FLEXO ELECTRONICS, INC. 217 PICKERING ROAD, ROCHESTER, NH 03867 USA • 603-332-6150 • FAX 603-332-3758 E-Mail: [email protected] • Internet: www.dfe.com • ISO 9001 Certified ©2014 DOVER FLEXO ELECTRONICS, INC. ALL RIGHTS RESERVED

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