Note: Allow at least 15 minutes for bath temperature stabilization, after initial turn on. Once the bath temperature dials have been set, do not change the setting or another 15 minutes will be required for temperature stabilization. Having exactly the right temperature is not necessary!
When measuring the resistance of an RTD with a DMM, the resistance of the lead wires must be taken into account for best accuracy. Therefore, you should check the resistance of the leads connected to the RTD and then subtract this from the resistance measured to get the true RTDs resistance.
5. Connect a 100* Ice-point Platinum (coefficient 0.00385) 4-wire RTD to a DMM measuring resistance. Take the necessary readings to complete table 1. Use the appropriate RTD table to determine the temperature from the measured resistance. Show one example calculation of a table interpolation.
Note, take into account the glass thermometer correction factor (recorded in step 2).
6. Explain possible sources of error.