ZIROX® Miniature Probe SS27
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ZIROX® Miniature Probe SS27 Properties Potentiometric oxygen probes, which were developed for exhaust gas measurements in motor vehicles (X-probes), are frequently used in industrial equipment. Due to their construction, the probes have some significant disadvantages: from the uncontrolled heating (steady working voltage) and ceramic coating of the electrodes, which stimulate the diffusion of special gas components, serious measuring errors can result. The SS27 with controlled heater and integrated primary electronics has a great accuracy at comparatively low costs. The main part is the approved ZIROX potentiometric zirconia-based solid electrolyte cell (drift-, calibration- and maintenance-free). The use of high-quality components and materials guarantees long-term stability. Applications The ZIROX® Miniature Probe SS27 serves exhaust gas measurements in large-scale engines, for process control and combustion optimization in small-scale firing equipments and for furnace gas measurements in heat treatment equipments. Further application areas are the optimization of incineration plants and the monitoring of industrial processes under protective or inert gas atmospheres. Sensoren und Elektronik GmbH www,zirox.de ZIROX GmbH • Am Kopprtberg 21 - 17469Greilswald Fmjil" infoS'zirnjt.rf^

Plug assignment: 50...300 mm 10 mm 0.5 kg 64 x 58 x 36 mm IP42, others on request KF25, KF40, screw thread M18 x 1.5 24 V DC 17 W Approx. 5 min 0.200 mV (0.300 mV on request) 15 ppm...20.6 vol% O2 (0.200 mV) 0.13ppm...20.6 vol% (0.300 mV) < 5 % rel. error Max. 300 °C 700 °C Max. 50 °C, rel. humidity < 80 % Approx. -2.-8 mV (compensable) 4-20 mA (0-5 V, 0-10 V on request) Calculation of oxygen concentration The oxygen partial pressure is calculated with the NERNST equation. For normal pressure applies: 9(02) = 20.64 * e <"46'42 U/T) 9(02): oxygen concentration in vol% 20.64: oxygen...