Lambda sensors

D 4 | Oxygen Sensor Type Code LSM 11Oxygen Sensor Type Code LSM 11“Lean” SensorOverviewThe oxygen sensor type LSM 11 is a thimble construction,zirconium dioxide sensor with integrated heater element.This sensor is a galvanic concentration cell with solidelectrolyte permitting measurement of oxygen concentrationin exhaust gas. These sensors have an output signalthat is both stable and insensitive to interference, as wellas being suitable for extreme operating conditions. Sensoroutput ranges from lambda = 1.00 < > 2.00, in certainapplications. This sensor has various application possibilitiesincluding;Combustion ProcessesOil burnersGas burnersCoal-fired systemsWood-fired systemsIndustrial furnacesEngine Management SystemsLean-burn enginesGas enginesMeasuring & Analysis ProcessesSmoke measurementGas analysis ( In conjunction with Air / Fuel ratio meter )Dimension drawing.A Signal voltage, B Heater voltage, C Cable sleeve and seals,D Protective tube, E Protective sleeve, L Overall length. ws White,sw Black, g Grey.ø22,6M18x1,5 6eø1228,2D10,5SW 22L66 L-20021,8CEgwssw73B+- AXX+-Lambda sensor in exhaust pipe (principle).1 Sensor ceramic, 2 Electrodes, 3 Contact,4 Housing contact, 5 Exhaust pipe, 6 Ceramicprotective coating (porous).Exhaust gas5 61 243AirU sCharacteristic curve: Propane gas(lean range).U SSensor voltagemV302010U H = 12 VϑA = 220°C01.0 1.2 1.4 1.6 1.8 2.0 λ3.31 5.71 7.54 8.98 10.14%O2Characteristic curve: Complete range.1 Closed-loop control Ï = 1; 2 Lean controla Rich A/F mixture, b Lean A/F mixtureU SSensor voltagemV800600400200a1U H = 12 VϑA = 220°C0.8 1.0 1.2 1.4 1.62Excess-air factor λb1.8 2.0Bosch Automotive Aftermarket 2009 | 2010