When using a decade box to calibrate a temperature transmitter, what other tool may be necessary?

When calibrating a temperature transmitter using a decade box, having a resistance to temperature table is essential. This tool helps translate the resistance values set by the decade box into the corresponding temperature readings that the transmitter should be outputting.

Temperature transmitters often operate on the principle of resistive temperature detectors (RTDs) or thermocouples, where the output signal changes based on the resistance of the sensor. The resistance to temperature table provides a reference for understanding at which resistance value a specific temperature corresponds, thus allowing for accurate calibration of the transmitter's output based on the resistive input provided by the decade box.

In this context, while a millivolt to resistance table and a millivolt to temperature table can be useful tools in related scenarios, they do not directly assist in the calibration process when working specifically with resistance inputs and temperature outputs. Therefore, relying on the resistance to temperature table is crucial for achieving effective and accurate calibration.