Consistency measurement system
Metso Automation
The simple and reliable design of the SmartLX Consistency Transmitter provides reliable consistency measurement in mechanical pulp processes without requiring routine maintenance. The SmartLX operates in the electromagnetic near-infrared range, using the ability of fibers to scatter and absorb light. This measurement principle has been developed specifically for mechanical pulp processes where the shear forces caused by fiber flow are too minute to be detected by shear force-based transmitters.
The SmartLX is not affected by flow rate variations and can, therefore, be installed in both laminary and turbulent flow. Its built-in compensation capability ensures that changes in the temperature of either the pulp or its electronic components do not interrupt or distort consistency measurement.
The SmartLX is suited for all pulps consisting of a single grade, or containing a fixed filler ratio, in a consistency range of 0.5% to 5% Cs. It is also good for measuring a variety of low consistency pulps (0.5% to 2% Cs) in SWG, TMP, PGW and CTMP plants, including pulps flowing to screens, exiting the latency removal chest, or rejected from the screen. Specific calibration curves for various pulps are stored in the SmartLX transmitter's memory, making calibration easy. In most cases, one-point calibration is adequate since the transmitter electronics handle the linear calculations.
