Load cell output convertor uses Profibus DP

The WST 3 load cell output convertor, with Profibus DP communication and DIN-rail mounting, provides a convenient weighing solution for food processing and chemicals applications.

The Vishay Nobel WST 3 load cell output convertor, with Profibus DP communication and DIN-rail mounting, provides a convenient weighing solution for food processing and chemicals applications.

The WST 3 integrates easily into an instrument control panel to provide local weight or force indications, with setup and calibration via the front panel.

The WST 3 supports up to eight 350-ohm transducers, with excitation voltage from 8.8 to 5.5V DC.

The WST 3 features a patented analogue-to-digital convertor capable of up to 8,300,000 counts and 0.5 to 300Hz conversion speed at 0.015% accuracy.

This makes the WST 3 suitable for process weighing, force measurement and a wide variety of applications in PC-based and PLC-based control systems.

Communication is via standard RS485/Modbus RTU protocol.

The WST 3 unit is equipped with two relay outputs, which have a response time of less than 20ms, for use in high-accuracy level control applications.

WST 3 transmitters also offer onboard fieldbus communications using the Profibus DP format.

Fieldbus versions of DeviceNet and Modbus Plus also are available through the Gate 3S network module from Vishay Nobel.

A basic version of the Deltacom PC-based remote setup program is included with each WST 3 transmitter.

The software is compatible with Microsoft Windows 95, 98, 2000, NT4, Me and XP operating systems.

The WST 3 is CE-marked, including compliance with the Low Voltage and EMC Directives.

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