Iec 61298-2 ~upd~ Jun 2026

Additionally, the reference conditions defined in the standard (e.g., 20°C) are not always achievable in the field. Therefore, the are often more practically valuable than the reference accuracy figure.

: It is used to characterize novel technologies, such as inkjet-printed temperature sensors and PCB-based pressure sensors. iec 61298-2

| Standard | Relationship to IEC 61298-2 | | :--- | :--- | | | General test procedures, terminology, and conditions for all three parts. | | IEC 61298-3 | Tests for influence quantities – often confused with Part 2, but Part 3 focuses on dynamic effects (step response, settling time), not environmental influences. | | IEC 60770 | Transmitters for industrial-process control – general methods for evaluating performance. Overlaps but is less detailed than 61298. | | ANSI/ISA-75.02.01 | Control valve flow capacity testing – not related directly, but often referenced in the same control loop. | | Standard | Relationship to IEC 61298-2 |

The supply voltage is varied between its minimum and maximum specified limits (e.g., 12V to 42V DC for a loop-powered transmitter). The output deviation is measured. A well-designed transmitter should show negligible change (<0.005% of span per volt). Overlaps but is less detailed than 61298

While it does not replace field validation, any serious evaluation of a pressure, temperature, or flow transmitter begins with IEC 61298-2. It remains a cornerstone document for instrument engineers, calibration technicians, and quality assurance professionals in the process industries.