Lambda Sensor LSU 4.9 Datasheet - Bosch Motorsport

1 Application: Lambda to Exhaust gas temperature: 930 C (1,030 for ashort time) Hexagon temperature: 600 C thread : Weight: 120 gThis Sensor is designed to measure the proportion ofoxygen in exhaust gases of automotive engines (gas-oline or Diesel).The wide band Lambda Sensor LSU is a planarZrO2 dual cell limiting current Sensor with integratedheater. Its monotonic output signal in the range oflambda to air makes the LSU capable of be-ing used as a universal Sensor for Lambda 1 measure-ment as well as for other Lambda ranges. The con-nector module contains a trimming resistor, whichdefines the characteristic of the main benefit of the LSU is the robust designcombined with the high Bosch production Lambda Sensor operates only in combinationwith a special LSU-IC, used in most BoschMotorsport ECUs and Lambda control units like ll find this unit and more on our homepage atElectronics/ Sensor to Fuel compatibilitygasoline/Diesel/E85 Exhaust gas pressure bar (higher with de-crease accuracy)Exhaust gas temperaturerange (operating)

2 < 930 CExhaust gas temperaturerange (max.) for short time< 1,030 CHexagon temperature< 600 CWire and protective sleevetemperature< 250 CConnector temperature< 140 CStorage temperature range-40 to 100 CMax. vibration (stochasticpeak level)300 m/s2 Technical SpecificationsVariationsLSU with automotive (Series production type, notavailable from BoschMotorsport)Mating length cmLSU with Motorsport connectorConnectorAS607-35 PNMating connectorAS007-35 SNWire length to cmMechanical DataWeight w/o wire120 size22 mmTightening torque40 to 60 NmElectrical DataPower supply H+ VSystem supply V to VHeater power steady WHeater control frequency 100 HzNominal resistance of Nernstcell300 OhmBosch Motorsport | Lambda Sensor LSU Sensor LSU current load for Nernstcell250 ACharacteristicSignal outputIP measAccuracy at Lambda at Lambda at Lambda [mA]lambdaUA [V], v=17UA [V]

3 , v= note: UA is not an output signal of the Lambda Sensor , butthe output of the evaluation circuit. Only IP correlates with theoxygen content of the exhaust gas. Amplification factor v=17 istypically used for lean applications ( Lambda >1), amplificationfactor v=8 is typically used for rich applications ( Lambda <1).Heater StrategyU13 VConnectors and WiresConnectorPlease see variationsMating connectorPlease see variationsSleevefiber glass / silicone coatedPin 1 Pump current APE / IPPin 2 Virtual ground IPN / VMPin 3 Heater voltage H- / Uh-Pin 4 Heater voltage H+ / Uh+Pin 5 Trim resistor RT / IAPin 6 Nernst voltage UN / REWire lengthPlease see variationsVarious Motorsport and automotive connectors are available NotesThis Lambda Sensor operates only in combination with a specialLSU-IC, used in most Bosch Motorsport ECUs and Lambda controlunits like LT4.

4 You ll find this unit and more on our homepage atAccessories/Expansion Lambda Sensor should be installed at point which permits themeasurement of a representative exhaust-gas mixture, whichdoes not exceed the maximum permissible at a point where the gas is as hot as the maximum permissible far as possible install the Sensor vertically (wire upwards).The Sensor is not to be fitted near to the exhaust pipe outlet, sothat the influence of the outside air can be ruled exhaust-gas passage opposite the Sensor must be free ofleaks in order to avoid the effects of the Sensor against condensation Sensor is not to be painted, nor is wax to be applied or anyother forms of treatment.

5 Use only the recommended grease forlubricating the find further application hints in the offer drawing at NoteThe Sensor is not intended to be used for safety related applica-tions without appropriate measures for signal validation in the ap-plication RestrictionsDue to embargo restrictions, sale of this product inRussia, Belarus, Iran, Syria, and North Korea is InformationLambda Sensor LSU automotive connectorOrder number Motorsport | Lambda Sensor LSU | 3 Lambda Sensor LSU Motorsport connectorOrder number recommendationRecommended design of the mating thread in the exhaust pipe: THexagon > 600 Cor TGas > 930 CBosch Motorsport | Lambda Sensor LSU | 3 Represented by:Europe: Bosch Engineering GmbHMotorsportRobert- Bosch -Allee 174232 AbstattGermanyTel.

6 : +49 7062 911 9101 Fax: +49 7062 911 America: Bosch Engineering North AmericaMotorsport38000 Hills Tech DriveFarmington Hills, MI 48331-3417 United States of AmericaTel.: +1 248 876 2977 Fax: +1 248 876 Engineering Japan Queen s Tower C, 2-3-5 MinatoMirai Nishi-ku, Yokohama-shiKanagawa 220-6218 JapanTel.: +81 45 650 5610 Fax: +81 45 650 , New Zealand and SouthAfrica:Robert Bosch Pty. LtdMotorsport1555 Centre RoadClayton, Victoria, 3168 AustraliaTel.: +61 (3) 9541 Bosch Engineering GmbH 2022 | Data subject to change without notice51882123 | en, V, 02.

7 Nov 2022