Question….
We have quite a few RTD and Transmitters throughout our facility.
Within our group we have had several conversations around the calibration of these devices.
Calibration Option #1
Calibration Option #2
Option #1 does not account for any issues with the RTD itself should the RTD have resistance loss due and is dependent on Fluke and Transmitter Only
Option #2 calibrates the entire loop but takes considerably more time do to the use of the Dry Block.
We have quite a few RTD and Transmitters throughout our facility.
Within our group we have had several conversations around the calibration of these devices.
Calibration Option #1
- Check PLC readout and record temperature
- Remove RTD wires and connect to Fluke Process Calibrator and Record RTD Temperature
- Connect Fluke to Transmitter and Source 10%, 50%, and 90% of scale to PLC
- Record Readings and make adjustments as needed
Calibration Option #2
- Place RTD into Dry Block and Set to 10%, 50%, 90% of Scale
- Record Temperatures from PLC
- Adjust RTD Transmitters as needed
Option #1 does not account for any issues with the RTD itself should the RTD have resistance loss due and is dependent on Fluke and Transmitter Only
Option #2 calibrates the entire loop but takes considerably more time do to the use of the Dry Block.
- Is the use of the dry block even necessary? Can the calibration be performed using only the Fluke (or a decade box).