Product category:
Monitoring and sensor equipment and systems
News Release from: Vishay Nobel | Subject: HTU tension transducer
Edited by the Manufacturingtalk Editorial
Team on 26 June 2000
Web tension measurement with complete
confidence
The Nobel Systems HTU tension transducer measures web tension forces applied across a roll over a range of 5000 to 20,000 pounds using integral horizontal and vertical axis sensors.
The Nobel Systems HTU tension transducer measures web tension forces applied across a roll over a range of 5000 to 20,000 pounds using integral horizontal and vertical axis sensors This innovative and exclusive two-dimensional approach to web tension force measurement (patent pending) enables accurate determination of the true resultant force as well as the applied angle
This article was originally published on Manufacturingtalk on 21 Jan 2002 at 8.00am (UK)
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Not only does this permit installation and measurement at any mounting angle or roll orientation, but it also combines to form an expert diagnostics system that produces the highest level of web tension measurement confidence available today.
Applications include use with paper, roofing, metal strip forming and rubber forming machines, and mining conveyors.
The HTU is machined from a high strength stainless steel.
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Transmitter is for use inside hazardous areas
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Roll force measuring system is retrofitable
A retrofit roll force measuring system provides the mill operator with the continuous monitoring and display of roll separating force and differential balance forces.
This yields a low profile single-piece construction that incorporates tubular sensing sections at each end.
Force sensing elements located on each end of the transducer measure the components applied along the X and Y axes.
Resultant output signals can be used to determine the magnitude and direction of the overall force applied by the web.
Two full wheatstone bridges are mounted internally to each tubular cross section to provide independent sensing as well as protection from hostile environments.
Each bridge is temperature compensated to 120øC (250øF) and dead weight calibrated to precision accuracy.
The cylindrical sensing sections are sealed to meet IP67 requirements.
Environmental sealing ensures long-term reliability for humid, wet, or washdown locations.
Retrofit installations are simplified with the ultra low profile height of just 36.83mm (1.45 inches), resulting in a negligible change in the line profile.
The HTU tension transducer can be mounted directly to framework with an optional pillowblock adapter plate or it can accept top and bottom adapter plates.
(See Figure 1).
These plates mount on integral loading surfaces designed to produce shear forces in the sensing element.
Loading surfaces are located on either side of the longitudinal centre slot and include drilled and counterbored holes to maintain a low profile assembly.
The HTU transducers are factory calibrated and certified with matched output signals to permit on-site push button systems calibration, thus providing minimum start-up time and maintenance-free operation.
The HTU load cell incorporates a symmetrical, universal design that measures the resultant force and angle of any web tension system, independent of wrap angle, with a horizontal or vertical installation.
Special orientation or the selection of a horizontal or vertical transducer is not required. Request a free brochure from Vishay Nobel ...
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