Optical dissolved oxygen sensor

Modbus RTURS-485

The oxygen sensor uses luminescence-based optical measurement technology and measures reliably and precisely. The low maintenance and small amount of consumable materials needed by the sensor provide immediate returns on investment. Only the membrane cap must be replaced every two years. The sensor can also be used in applications with a very weak water flow. The oxygen sensor is available with a 10-meter or a 2-meter cable. Low operation costs thanks to low maintenance (no electrolyte replacement) Larger calibration interval thanks to low deviations No polarisation voltage necessary High degree of measurement accuracy, even at low concentrations Fast response time No minimum inflow (no oxygen consumption) Measurement principle - Luminescence Parameter - Dissolved Oxygen Measurement range - 0...20 mg/L 0...20 ppm 0...200 % Measurement accuracy - ± 0.1 mg/L ± 0.1 ppm ± 1 % Resolution - 0.01 Measurement interval - > 5 s Resolution (temperature) - 0.01 °C Accuracy (temperature) - 0.5 °C Membrane Cap - No cross-sensitivity with : pH 1 – 14 ; CO2, H2S, SO2 Cross-sensitivity to Organic solvents, such as acetone, toluene, chloroform or methylene chloride Chlorine gas Material - Standard Version in passivated Stainless steel 316L body, strainer and screw, For Seawater application Version in Titanium body, strainer and screw, Cable : polyurethane jacket Steam gland : Polyamide Patch with active material (black) – Membrane : Optical isolation silicon Dimensions (L x Ø) - 146 mm x 25 mm - ~ 5.7˝ x 1˝ Weight stainless steel - ~ 450 g ~ 1 lbs Weight titanium - ~ 300 g - ~ 0.7 lbs Interface - RS-485 (Modbus RTU) Power consumption - 1 W