Portable LSU4.9 Air Fuel Ratio Analyzer DLE60DA70DLE120 Engine Carburetor Adjustment Small Metal Design Drone Accessories

New Upgrade,Add All Based on the OriginalCNCAluminum alloy casing,More Beautiful.The New Model Supports Air-Fuel RatioAFRValue andLAMBDAValues Displayed Simultaneously,Meet different customer needs.

It Also Supports the Rapid Adjustment of Drone Carburetor Engines,For Motorcycle Users,This Tool Is Also Very Useful,Whether It Is Modified to Electronic Injection,FlashECU,Or Adjusting the Carburetor Is Very Helpful,This Process Can Be Quantified and Displayed through Specific Numerical Values,Highly recommended!

This Tool Uses BoschLSU4.9To Measure the Concentration of Oxygen in Exhaust Gas,Real-Time Display of Engine Air-Fuel Ratio,Provide an Intuitive Reference Basis for Debugging the Engine Carburetor,According to the Numerical Value, the Oil Needle Range Can Be Adjusted to the Appropriate Range,No More Guessing.

LSU4.9WithLSU4.2The Main Difference Is,LSU4.9The Measurement Is Based on the Reference Pump Current,AndLSU4.2The Measurement Is Based on the Air in the Natural Environment.
LSU4.2The Principle of Measuring the Air-Fuel Ratio Is to Control the Oxygen Balance between the Pump Oxygen Chamber and the Reference Air Chamber,The Pump Current Reflects the Actual Air-Fuel Ratio,However, in Actual Work,Reference Air Is Easily Contaminated by Engine Exhaust or Other Pollution Sources,Once the Reference Air Is Contaminated,The Characteristic Curves of Sensors Will Be Shifted,Thus Affecting the Accuracy of Measurement.
AndLSU4.9The Oxygen Sensor Is Completely Separated from the Reference Air,Compare the Actual Pump Current with a Calibrated Reference Pump Current,The Actual Air-Fuel Ratio Is Reflected through the Pump Current,Therefore, the Characteristic Curve of the Sensor Will Not Be Interfered by the External Environment.Thanks to BoschLSU4.9Wide Range Oxygen Sensor,This Air-Fuel Ratio Analyzer Can Be Automatically Calibrated after Being Powered on,No Need for Tedious Calibration Steps with Old-Fashioned Sensors

Conventional Model Aircraft Two-Stroke Gasoline Engine,When the Amplitude of Oil Needle Adjustment Is Relatively Small,Even an Experienced Master Cannot Accurately Judge the Difference Brought by This Slight Difference.But for Continuous Work3,4For Drones for Hours,This Small Difference May Lead to a Large Difference in Fuel Consumption.Therefore,Through This Air Fuel Ratio Analyzer,Can Display the Current Combustion State of the Engine in Real Time,You Can Amplify This Small Difference Quantitatively.Just Need to Adjust the Oil Needle,Uselambda(λ)Maintain at0.95Left and right,You Can Maintain a Relatively Ideal Working State,Both Ensure Life,Lower Fuel Consumption.Of Course,Due to the Inherent Physical Properties of the Carburetor,It Is Not Possible to Maintain the Entire Working Range of the Engine0.95Left and right. Instant:You Adjusted It at Full Throttle0.95,May Be at Medium SpeedlambdaCan Only Reach0.8(Rich in Oil). When You Adjust the Medium Speed to0.95,Full Throttle May Reach1.2Above(Poor Oil),So This Requires a Choice,Try to Adjust the Interval of the Engine's Long-Term Working State to an Appropriate State.This Is Also Why Carburetors Are Not as Good as Electronic Fuel Injection Systems.

When using,Replace the Exhaust Pipe with an Oxygen Sensor,Just Need to Adjust in High Speed StateHOil Needle,Make the ScreenlambdaWorth it0.95Left and right,At Idle,AdjustmentlambdaWorth it0.8Both Left and Right Are Acceptable,No Need to Worry about Engine Adjustment Anymore.

AvailableDLE60,DLE120And Other Conventional Exhaust Pipes with Sensor Interfaces,It Can Also Be Customized According to Customer Needs.If the Customer Makes It,Only Need to Weld OneM18X1.5,Height10mmJust Connect the Left and Right Connectors to the Exhaust Pipe.

Can be used3SLithium Battery or12VBattery powered,Do Not Plug in or Unplug the Sensor When the Power Is on,The Sensor Should Not Be Dropped or Exposed to Water When Heated,Otherwise the Internal Ceramic Structure Will Be Easily Broken.Reserved One Way0-5vAnalog Signal Output,Can Be Used asECUFeedback Control Signal,If You Need This Option, Please Inform the Seller in Advance.