Speedometer Calibration

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Speedometer calibration uses electronic signals to measure the actual output of the speedometer and compare it to the established output standard that is set by the manufacturer of the vehicle. If a difference between the instrument reading and the accepted standard is determined and verified, the calibration device can tune the speedometer in order to provide the correct speed measurement. Read More…

Speedometer Calibration Speedometer calibration is the process of adjusting speedometers to match industry standards of precision for measurements of speed in vehicles. Accuracy of a speedometer is important, both in order to help car owners drive safely and because it directly works with the car's odometer to measure distance.

Leading Manufacturers

West Conshohocken, PA  |  610-825-3310

For over 40 years, Strainsert Company has been an industry leader in manufacturing calibration services. Our goal is to provide calibrating services that are thorough and accurate, and we have experience serving a variety of applications.

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Strainsert Company $$$

Chatsworth, CA  |  818-423-4071

At Micro Quality Calibration we are considered the first western commercial laboratory designed for precision measurements. Since 1978, our calibration laboratory & repair facility has done instrument calibration & equipment calibration. Calibration is done under strict controls. ISO-9000 certified. We are successful because we provide the best service and are committed to excellence.

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Micro Quality Calibration Inc. $$$

Duncan, SC  |  864-433-9771

Working with measurement instruments and providing calibration services since 1967, we are the company you want to contact. We meet special gaging requirements and perform equipment calibration and repair in our A2LA 17025-accredited calibration laboratory. We look forward to your contact.

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MSI-Viking Gage, LLC $$$

Scottsdale, AZ  |  800-948-5555

Interface specializes in calibrating services including load cell calibration and gage calibration services. Our calibration services are utilized for nearly any force measurement application and this even includes custom designs. These are very easy to use and our products offer consistent results. Call us if you have questions about our calibrating services.

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Interface, Inc. $$$

Hartland, MI  |  810-225-4601

Internally-known, Dynamic Technology is an NVLAP®-accredited calibration services facility. We conduct vacuum and pressure calibration; mass and torque calibration; temperature calibration and electronics calibration. We have a physical/dimension laboratory and can perform repair services as well.

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Trescal $$$
placeholder image Strainsert Company Micro Quality Calibration Inc. MSI-Viking Gage, LLC Interface, Inc. Trescal

This process makes the speedometer readings more exact and, as a result, the odometer reading more exact as well. The accuracy of speedometers is important because it ensures users they are driving within legal limits and avoiding expensive moving violations and high insurance costs, as well as other safety hazards.

As with most electronic instruments, speedometers should be calibrated regularly to ensure proper performance. In order to ensure that the torque created by the magnetic field reflects the speed of the car accurately it must be calibrated. Calibration services must take a number of factors into account concerning the machine being calibrated, such as gear rations in the drive cable, final drive ratio in the differential and the diameter of the tires.

As a speedometer becomes older, more frequent calibration may be required. Aftermarket modifications to the vehicle, such as new wheels with a different size diameter, low tire pressure, extra weight in the vehicle and environmental conditions can also result in erroneous readings on the speedometer and odometer. If aftermarket changes occur, the user must make the proper adjustments in the calculations to recalibrate the car. This can be done by manipulating that hairspring, the permanent magnet or both. Doing this will optimize the efficiency of a vehicle.