As an accredited calibration lab ISO/IEC 17025, Control Company offers you an exceptional calibration service for your devices to ensure accuracy. We created the Traceable® Certificate for each device that is an internationally recognized and standardized method for describing measurement procedures and product accuracy.
Industries relying on measurement devices for critical data and information often require or recommend those devices be calibrated on a periodic basis. Although the concept of calibration has been around for quite some time, the term can mean a variety of things. At its simplest definition, calibration is a process to certify the accuracy of a measurement device. This gives the end user confidence that the data being used from the device has a high certainty of being reliable according the device specifications.
Calibration methods come in various forms. Batch calibration indicates a sample of product form a manufactured lot was tested and confirmed to meet specifications. Individual calibration indicates each device produced was tested and certified. Accredited calibration means each individual device was tested and the procedure for testing was in accordance with a quality standard, usually ISO 17025. Additionally, that process has been reviewed and certified by a third-party accreditation expert called a metrologist. Accredited calibration offers the highest level of certainty that the device is accurate and reliable to use.
Measurement devices involve complex electrical and mechanical design consisting of many individual components to build the device, each of which affects the device’s operation and performance. Due to the complexity, a single batch of nonconforming components could result in the devices not meeting product specifications. Without calibration, the manufacturer would release the devices to the market not knowing they are defective.
The phrase “Traceable to NIST” is coined in the calibration community, but not commonly understood to those not familiar with calibration. Across the globe, government national laboratories maintain universal measurement standards for various parameters such as temperature, time, and distance. For a measurement device to be deemed accurate, it must be compared to one of these standards, directly or indirectly, through a series of comparisons. Accredited calibration laboratories are required to quantify the accuracy of their calibration processes; this is called calibration uncertainty. Lower calibration uncertainties indicate more accurate and controlled processes, which are needed to certify measurement device with tight specifications.
Standard calibration periods vary depending on type of device and industry use. Common practice is to calibrate annually for most types of devices.
To determine your calibration frequency, the best practice is to start with an annual calibration, with modifications able to be made over time dependent on the device stability history and regulatory guidance. It is also important to consider the application risk when determining calibration intervals. For sensitive application requiring high device accuracy, a shorter calibration interval may be needed.
AS FOUND calibration data is calibration data acquired prior to any repairs or adjustments being made to the device. Essentially, it is the condition of the device “as found” when arriving to our facility for calibration. This provides the user an opportunity to ensure that the instrument was reading accurately, and within specification, while it was in use. It offers valuable information and documentation to support an end user's test results, and it also provides record-keeping on the instrument's long-term linearity and stability.
AS LEFT calibration data is calibration data acquired after any repairs or adjustments are made to the device, i.e. the condition the device was left before shipping back to you. The condition of the device used to acquire the as left data will be the same condition in which you will receive your device.
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