Calibration involves comparing the measurements of an instrument or a device to a known reference or standard to ensure accurate and reliable results. To streamline this process, this module automates both entering accuracy specifications for standards used in calibration and datasheet templates for UUTs.

Workflow

The process for entering accuracy specifications for standards and datasheet templates for UUTs typically involves several steps. Let's start with the process of entering accuracy specifications for standards.

First, the user must select the model of the standard to be used in the calibration. Then, the user must record the accuracy and parameters of all measurement ranges, of all the functions of the standard to be used in the calibration. This is because each range and function of the standard may have different levels of accuracy. The software has both a built-in units of measurement converter (e.g. a range for a DC voltage measurement may be expressed in volts and its accuracy in millivolts), and can understand most accuracy expressions (e.g. +/- floor value, ppm of IV, % of FS, etc).

Now let's look at the process of creating datasheet templates for UUTs. To create a new datasheet template, the user must select the model of the UUT and enter all the necessary information about the procedure such as the calibration procedure, list of standards to used, any relevant comment, a template name and the test points. Each test point includes the function/range to be tested, nominal value, and tolerance specification. The process of creating a template is enhanced with an autocompletion tool, advance cloning/deletion functionalities, import/export among other neat features like being able to be synced to a Tablet or handheld device (On-Site calibration module).

Once the list of test points and standards are recorded, the software has all the elements to ease the calculation of TAR and Measurement Uncertainties, cause it may automatically assign the measurement ranges from the accuracy specifications tree that can calibrate the nominal value (if multiple competing ranges fit the criteria it will automatically select the range with best accuracy, by default) . This helps to ensure that the calibration results are accurate and reliable (e.g. 4:1 TAR ratio) and obtain traceability.

It's important to note that the datasheet template must be approved before it can be used in a production calibration. This is to ensure that the calibration procedure and test points are appropriate for the UUT and that the measurement uncertainty is within acceptable limits.