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Regular calibration is the key service activity to ensure accurate weighing results. 

All calibrations are performed using certified equipment or standards that have the accuracy of measurement traceable to the International Standard (SI) through National Institute of Standards and Technology (NIST). NIST is a non-regulatory government agency that develops technology, metrics, and standards to drive innovation and economic competitiveness at US-based organizations in the science and technology industry.

Every balance, scale and measuring device requires calibration, maintenance, and occasional repair to sustain a high level of accuracy and functionality. If the balance is not accurate, all data related to weight-prepared standards will contain the same degree of error. Balance or scale calibration is essential to achieve accurate weighing results.

Weight Check’s expertly trained technicians provide onsite calibration service and support of equipment ranging from heavy duty industrial scales in harsh environments to high precision laboratory balances in controlled environments.

Image by Wade Austin Ellis
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What We Do

A Certificate of Calibration is an official document of record for instrument calibration and provides traceability to the National Institute of Standards and Technology (NIST).

Our certificates report results of the balance or scale readings at the time the calibration was performed and compares them to a reference value traceable to NIST.


In addition to issuing a Certificate of Calibration, Weight Check affixes calibration stickers to your equipment at the time of calibration.

The accuracy of balances and scales becomes less reliable over time. This is the result of normal wear and tear caused by regular use, environment, and other external factors. Periodically scheduled balance calibration in combination with frequent routine testing greatly enhances the life of your balance or scale and its weighing accuracy.

Calibration is a quantitative comparison. To check the reading of a balance or scale, a reference weight is placed on the weighing pan. The error is defined as the difference between the measured value (the reading) and the true value (the reference weight).

A properly maintained weighing device assures the quality of your products, eliminates low or high weights, and insures a correct inventory. Our team provides a visual weighing equipment inspection that can reveal if damage has been done to your weighing device—such as corrosion, dirt, debris, static—which could affect accuracy.

Routine maintenance can save your company both time and money. Equipment that is running at peak performance can extend the life of the product exponentially.

Weight Check offers customized service for single units as well as quantity discounts for two or more units. 

Within our inventory of scales, balances and weights, we offer instruments to meet a wide range of weighing requirements. Setup and calibration services are available for many of our instruments.

  • Mettler Toledo

  • Ohaus

  • Sartorius

  • Denver

  • A&D

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