The Q45H-85 peracetic acid monitor offers real time measurement of low levels of peracetic acid (PAA) solutions to help facilitate reliable chemical feed control for disinfection systems.

PAA is an extremely strong oxidiser, which is widely used in the food industry for disinfection of piping systems and processing equipment. It is also used for spray-washing of food products, and for disinfection of cooling water systems.

The Q45H-85 monitor helps to maintain proper residual values, giving effective pathogen control. It uses a direct sensing polarographic probe that is mounted in a flowcell to measure PAA residuals in a flowing water stream.

The sensor is isolated from the measured sample by a permeable diffusion membrane, which provide long-term stability without chemical reagents and electrode fouling problems. The measurement is selective for PAA, and is not affected by changes in hydrogen peroxide in solution.

Technical information:

  • Range: 0-20.00 PPM Minimum, 0-2000 PPM maximum
  • Display: Large character LCD with LED back-light
  • Response time: 90% in 150 seconds
  • Accuracy: ± 0.5 PPM or 2% of full scale