IEC 61298-2 isn't just about static accuracy; it's about timing. These tests evaluate how quickly a device responds to a sudden change in input (Step Response) and how it handles oscillating signals (Frequency Response). Who Should Follow IEC 61298-2?
Verify that the device provides the same output for the same input multiple times.
Create a standardized data set that can be compared against other manufacturers or models. Key Testing Procedures Covered iec 612982
The standard defines how to conduct multiple test runs over a short period to see if the device can replicate its own results consistently. 4. Step Response and Frequency Response
Determine the intrinsic error of the device. IEC 61298-2 isn't just about static accuracy; it's
Before you can understand how an instrument fails or drifts in extreme heat or vibration, you must first establish its "baseline." Testing under allows engineers to:
The difference in output at the same input point depending on whether you are "going up" or "coming down" the scale. 2. Dead Band Testing Verify that the device provides the same output
The standard requires a series of "calibration cycles." Typically, this involves increasing the input signal in steps (e.g., 0%, 25%, 50%, 75%, 100%) and then decreasing it back to zero. This reveals: How closely the output follows a straight line.
While Part 1 of the series covers general considerations, provides the "how-to" for conducting tests. It defines the specific procedures to determine how an instrument performs when environmental and operational factors (like temperature, humidity, and power supply) are kept at a constant, "ideal" state. The Importance of Reference Conditions
To verify that the equipment they have purchased meets the technical specifications required for their specific process.