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Transmitter/Intelligent Junction Box for Remote Scale System Monitoring

Weight Measurement

Transmitter/Intelligent Junction Box for Remote Scale System Monitoring

Transcell has announced a digital weight transmitter, combined with an intelligent junction box, for high-speed, individual monitoring of up to four individual load cells. The unit is able to measure and transmit filtered weight data to a programmable logic controller (PLC) or other compatible host device, via Modbus protocol or Ether- Net/IPprotocol.
(ed. WoMaMarcel - 27/5/2015)
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According to Transcell Technology, the LCT-2 transmitter/intelligent junction box costs about 50% less than the combination of separate devices.

According to Transcell Technology, the LCT-2 offers major benefits over the conventional topology of separate transmitters, junction boxes and EIP bridges. Cost is especially notable, as the LCT-2 costs about 50 percent less than the combination of separate devices, the company says. Install time is also reduced by 50%, with even more savings on interconnection components.

Another unique feature is the capability to monitor up to four individual load cells, instead of a combined measurement. This adds to the flexibility of use in different applications and provides the operator with much more data.

A calibration-free feature provides for scaling of the LCT-2 to the load cell mV/V calibration data. This eliminates the need for conventional calibration methods utilizing test weights and/or material substitution. In addition, to offset errors due to eccentric loading, a digital corner calibration feature is also available. Both features save time and labor costs.

Based on high-speed analog-to-digital conversion technology, the device can minimize the effects of long, analog homerun cable installations. The sampling rate is adjustable from 4.7 Hz to 4800 Hz, with a resolution of 24 bits. Designed for in-plant applications, several unique capabilities help guard against costly downtime and the resultant product waste. These include real-time scale system diagnostics, capable of immediate fault detection. Dead load cell emulation provides a workaround until a detected fault can be corrected, making the LCT-2 ideal for mission-critical systems requiring single or multiple scales with multiple cells.

The Transcell LCT-2 is designed to be highly flexible and adaptable to virtually any plant environment. Up to 20 industrial network protocols are supported. Modbus RTU and Modbus ASCII are standard. Modbus TCP/IP and Ethernet IP are also available (with additional hardware). Other interface options include Profibus, CAN open, and DeviceNet.

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