OzoSense – Residual Ozone

The OzoSense Online Dissolved Ozone Monitor from Pi for the measurement of the ozone concentration in water, is designed to be simple to install and operate, and offers unrivalled stability, accuracy and precision, whilst offering excellent value for money.

The OzoSense range of online dissolved ozone analyzers and dissolved ozone monitors utilize the very latest and best ozone sensors available in the world today. There are two sensors in the OzoSense range. The first is a membraned device which is insensitive to changing pH, uses no reagents, is extremely stable, and has reduced maintenance and reduced whole life costs. The second is a non membraned three electrode sensor, that can operate at higher temperatures and pressures.

Key Benefits

  • Stable and reliable – excellent process control
  • Suitable for all potable, process and salt waters
  • Up to 6 months between maintenance
  • Up to 3 months between calibration
  • Does not respond to residual chlorine
  • Resistant to detergents in the water

Description

Specification

Ozone Sensor Probe

Type:                                                   Membrane covered amperometric polarographic two-electrode system

Measurand:                                       Residual Ozone O3

Range:                                                0.05-0.2, 0.05-0.5, 0.05-2, 0.05-5, 0.05-10 mg/l (ppm)

Resolution:                                        0.01mg/l (10 ppb)

Reproducibility:                                ±5%

Stability:                                              –1% per month (without calibration)

Working Electrode:                          Cathode made of gold

Counter Electrode:                           Silver /silver halide

Membrane Material:                         Micro-porous hydrophillic membrane

Flow Rate:                                          Approx 0.5 l/min (min 0.2 l/min)

Temperature Range:                        >3 up to 50oC

pH Range:                                          pH 2 up to pH 11

Permissible Overpressure:            0.5 bar

Calibration:                                        Manual using a suitable ozone test kit every 1 week to 3                                                                 months, application dependent

Housing Material:                             PVC, silicone, polycarbonate, stainless steel

Dimensions:                                       Diameter approx. 25mm, length 175mm

Maintenance intervals:                    Membrane: 12-36 months

Electrolyte:                                            Every 3 to 6 months

Interference:                                      Cl2 negligible, ClO2 6%