The accurate scan averages and high-resolution profiles measured by Valmet IQ IR Moisture Measurement (IQ IR Moisture) provide a solid foundation for machine direction and cross direction moisture controls.
Moisture is a fundamental quality measurement that impacts your production potential. Fast, precise moisture measurements help you avoid quality defects while saving energy by drying at just the right level.
Using no-contact measurement and without wearing and speed limitations of a mechanical filter wheel, the Valmet IQ IR Moisture reliably delivers high-resolution moisture and sheet temperature measurements. Extremely fast IR-based measurements with excellent signal-to-noise ratio reveals even the smallest details. Advanced optical design minimizes passline sensitivity, and built-in standardization compensates for dirt build-up on the sensor window.
The Valmet IQ IR Moisture determines moisture percentage as a pure ratio using the four carefully selected wavelengths with a filler-independent baseline correction model. The percent of moisture determination is independent of sheet composition and environmental effects, eliminating the need for basis weight measurement to determine moisture.
The high-speed sampling and single spot optical design yield very low noise levels, while an InGaAs quad detector keeps measurement stability high. Each Valmet IQ IR Moisture sensor is factory pre-calibrated for applications ranging from tissue to coated and uncoated printing papers and boards.