RET-5533 PeakAsh

RET-5533 PeakAsh

Optical sensor

The RET-5533 PeakAsh measures total consistency 0.01% to 2% and ash consistency from 0.01% to 0.7% in pulp suspensions in the range. It can be calibrated to secure stable and accurate ash consistency based on laboratory ash determination. Ash and total consistency values are independent of variation in pulp brightness or color.

  • Optimize dosage of retention chemicals and save costs
  • Precise ash measure
  • Tight ash and total retention control
  • Facilitates faster grade changes
  • Closed loop ash and retention control

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  • Total consistency from 0.01 to 2% and filler (ash) consistency measurement from 0.01% to 0.7%
  • Optical measurement with two beams after BTG’s patented Peak method
  • Tight retention control through real time results
  • Optimize dosage of chemicals such as retention aids for cost savings and better productivity


The sensor is intended for the installation into a bypass arrangement directly to the papermaking process line. It is rated for voltages of 100 – 240 VAC at 50 Hz / 60 Hz.

Measuring range
Optical measurement for 0.01 to 2 % total consistency and 0.01 – 0.7 % ash consistency.

Wetted parts are made out of stainless steel, EN 1.4404


  • Pressure PN16 (16 bar at 20°C [230 psi at 68°F]), sampling line 2-5 bar
  • Media temperature max. 120°C [248°F] – min. 5°C [41°F]
  • Sample flow 15 – 20 l/min [4 – 5.3 gal/min]
  • pH 4 – 9

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