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CSL

Colortronic CSL


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CSL stands for Colortronic Smart Load cell. The CSL is a force transducer which can be applied in a wide range of applications in the process control industry.

Operating principle

The Colortronic Smart Load Cell (CSL) uses the principle of measuring the variable resonant frequency of a vibrating wire subjected to an applied load - unknown and variable. Through mechanical means, the applied load is transmitted to the wire, causing a change in its resonant frequency. By monitoring and manipulating the resonant frequency through the on-board microprocessor, the value of the applied load is computed in engineering units. The resultant signal which is fully calibrated is transmitted via RS 485 serial communication to the controller. Data is transferred at baud rates from 2400 to 38400.

Because the resonance frequency is not constantly linear to wire tension, all the various force transducers are linearised and all data is stored in an EEPROM. The temperature compensation takes place with an integrated temperature sensor.

Features

  • Single string vibrating wire transducer with built-in microprocessor
  • Integrated electronic linearisation control
  • Integrated electonic temperature compensation control
  • Integrated digital filter to eliminate vibration
  • Direct digital weight data acquisition
  • Optimal repeatability and stability
  • Extremely high resolution: 0.0001% (1:1,000,000)
  • Serial port RS 485
  • Addressable easy two-way communication
  • No vibration protection required
  • Rugged construction

Technical Information

  • Accuracy: +/- 0.03% (300ppm)
  • Internal resolution: 1,000,000 ppm (parts per million)
  • Load cell capacities: 15, 30, 150, 300, 600 kg
  • Operating temperature: -10 to +50 °C
  • Maximum shock load: calibrated 100 G/uncalibrated 75 G, all directions
  • Transmission distance: max 500 metres (1640 ft.)
  • Measurement intervals: adjustable from 150ms to 4.5s
  • Electrical connection: 7 to 15 V DC max 125 mA (25 °C / 77 °F)
  • Enclosure protection class: IP 65