When I purchase a device or use the National Instruments Calibration Services, I get a Certificate of Calibration that has many different dates and pieces of information. What do those mean?
The Instrument Certificate that National Instruments provides is divided into three main sections, as shown in the image below:
The first section of the document refers to your device. (For example: DAQCARD-4350). This section contains the information regarding the calibration status of your card. You will find here:
For you to know that National Instrument's testing is valid, we include the calibration of the instruments we used to test your device. This section is also referred to as Standards Used, which enlists the manufacturer, model, tracking number, calibration date, and calibration due date of the instruments used to test your device.
Note: It is normal to see a very short period between the Calibration Date and Calibration Due Date in this section. This is because National Instruments constantly checks that the instruments used are operating in their best condition, to make sure your device complied with the most detailed specifications.
Besides the hard data provided, NI includes some texts with explanations and disclosures regarding your device and the information we present. This section includes notes that are relevant to you and the calibration auditors when interpreting the numbers shown in the document.
Some NI devices or modules do not need to be calibrated and therefore do not have a Calibration Interval. Any NI device or module that has Warranted Specifications will need to be calibrated, and should have a Calibration Interval listed in the Specifications or Datasheet.
If your device does not have Warranted Specifications and does not require calibration then neither the Specifications nor Datasheet will define a Calibration Interval. Similarly, if your device does not require calibration and you use the Instrument Certificate Generator, no Calibration Date or Calibration Interval will be listed in the Board Information.
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