CalEasy uses instruments to perform calibration and calibration verification. CalEasy’s instrument drivers are called Standards and can be interchanged to accommodate different instruments from different manufacturer. To provide interchangeability, CalEasy uses a DLL with a predefined instrument interface (functions/API) for each driver type. Each calibration program requires certain functions and capabilities to perform calibration and for each function, the user must supply a DLL that have supports the required functional interface.
For example: the GX5960 series of digital I/O PXI instrument requires three standards:
DMM - digital multi-meter.
MATRIX - switch matrix.
PS - power supply.
When configuring the calibration setup, the user must have standard DLLs to each one of these standards.
In addition to the standards, the user must ensure that the selected instruments will meet all the required capabilities as specified by the specific device that is being calibrated. For example: In order to calibrate the GX5960 the DMM must have DC, AC, 2 Wire measurement and must be accurate to 6 ½ digits, etc.