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SITRANS WS100 Belt Weighing Sensor Intro

2009-12-18 09:11   Article Source:N/A   View Times:

SITRANS WS100 belt weighing sensor(speed sensor) is a compact, medium-resolution, pulley shaft-driven belt speed sensor with magnetic mounting. It is ideal for aggregate and mineral processing industries.

belt weighing sensor WS100

■Benefits

* Long bearing life
* Small, light-weight
* Good resolution for accurate measurement, suitable for varying shaft speeds

■Application

SITRANS WS100 belt weighing sensor operates in conjunction with a conveyor belt scale, providing a signal to an integrator (Milltronics BW100 or BW500, or SIWAREX FTC module) which computes the rate of material being conveyed. It is lightweight at 1.22 kg (2.68 lbs) and durable, for easy installation and prolonged bearing life.

The WS100 converts shaft rotation into a pulse train of 8 pulses per revolution. These pulses are typically fed into a Milltronics belt scale controller. The controller interprets the pulses and uses them in the calculation of belt speed, flow rate, and material totalization. In non-belt scale applications, the WS100 can be used to monitor rotational speed when directly connected to a PLC.

The WS100 IS (Intrinsically Safe) version contains an inductive proximity switch which transmits the pulses via a Switch Isolator for hazardous area locations.

The input shaft on the SITRANS WS100 is coupled to the rotating shaft on a belt-driven pulley with a tapped hole, and is externally supported. The unit’s flexible arresting strap stops it from rotating with the shaft, without causing bearing stress, and can be fitted to any rigid member close to the belt weighing sensor. When mounting, ensure the unit and the pulley shaft are concentric to avoid stresses on the unit’s bearings. For mounting using the magnetic connector, ensure the face of the rotating shaft on the belt driven pulley is flat, and has no burrs or damage that may prevent flush mounting of the magnetic connector. Attach the SITRANS WS100 belt weighing sensor to the shaft; the magnetic connector will center itself as the belt driven pulley rotates.

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