ZIROX Oxygen Probe KS20 Properties The main part of the oxygen probe KS20 is a potentiometric solid electrolyte cell (ZrO2 sensor). Due to different oxygen concentrations at the electrodes (ambient air at reference electrode), a voltage arises which is proportional to the logarithm of the oxygen concentrations. From the cell voltage the oxygen concentration at the measuring electrode can be calculated with the NERNST Law. The KS20 is calibration-, drift- and maintenance-free. During measurements in reducing atmospheres falsifications of the gas composition do not occur from the cooling of the measuring gas in a suction line. The use of high-quality components and materials guarantees long-term stability. If the fuel gas composition is known, it is possible to calculate the air factor X, the CO-, CO2-, H2- and the H2O- concentration. These values can be provided by external electronic units (e.g. ZIROX electronic unit E2000). Applications The KS20 serves the process control and combustion optimization (TUV-Approval according to „TA Luft, 13. und 17. BImSchV”) in power and heating plants as well as in incineration plants. It is also part of regulating oxidizing and reducing furnace gases in ceramic industries. The KS20 was especially constructed for the high temperature range (measurements up to 1400 °C). Sensoren und Elektronik GmbH^

300...1500 mm 25 mm ceramic tube, 28mm steel shaft 1.3.5 kg ALO3 Thermocouple head Special clamps on ceramic socket IP52, IP 65 on request Oxidizing and reducing conditions (100 vol%...10-29 vol% O2) < 5 % rel. error 700.1400 °C 0 mV -33.1 mV Type B (800 °C corresponds to 3.2 mV) Ambient air 5.10 l/h Clamp assignment: Mounting recommendation: stuffing box Option: Immersion sleeve (Probe protection at flow > 10 m/s)