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. Our team of engineers can find a solution to your application, no matter how stringent your demands. Contact us today and let us know how we may assist you.

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Strainsert Company $$$

Orangeburg, NY  |  845-770-3000

AALFA-KAL Metrology Laboratory, division of Aalborg Instruments & Controls, offer calibration services on meters and controllers on various products. Our laboratories are fully equipped to perform NIST traceable flow calibrations for rotameters, mass flow meters and mass flow controllers. We can also calibrate NIST traceable approved “in-house” equipment to certify our primary calibration devices.

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AALFA-KAL Metrology Laboratory $$$

Elk Grove Village, IL  |  847-364-2600

Graftel maintains a complete calibration lab for gas flow, liquid flow, air velocity, RH/dew point and temperature. Calibration work is accredited to ISO 17025 and performed in compliance with ANSI/NSCL Z540-1-1994 requirements. Laboratory equipment is maintained in accordance with MIL-STD-45662A.

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Graftel LLC $$$

North Olmsted, OH  |  440-343-4024

Caltech Service is a service company committed to customer satisfaction. We are an ISO 17025 accredited calibration service. All of our service technicians have over 30 years experience in the temperature process calibration field. By providing regularly scheduled service, we develop a detailed knowledge of a customer's control process, responding with expertise to any potential control problem.

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Caltech Service Corp. $$$

Grass Valley, CA  |  530-268-1860

Micro Precision develops and maintains calibration services and repair services that assure levels of accuracy for your T & ME and gage blocks to high-end electronics. We also have a calibration laboratory, software and pressure calibration to meet your needs. IS0 9001:2000, ISO 17025, NIST Traceability.

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Micro Precision Calibration Inc. $$$

Morristown, TN  |  866-521-3823

Total customer satisfaction is our promise here at Precision Calibration Systems. If you’re looking for fast and accurate calibration services, you’ve come to the right place. The scope of our capabilities includes analytical balance, caliper, digital thermometer, electrical measure, electrical source, hardness testers, micrometers and so much more. Contact us today!

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Precision Calibration Systems $$$
placeholder image Strainsert Company AALFA-KAL Metrology Laboratory Graftel LLC Caltech Service Corp. Micro Precision Calibration Inc. Precision Calibration Systems

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.