Newsletters

Secondary System Temperature Sensor Calibration

 
Accurate measurement of nuclear plant feedwater temperature is a critical part of determining reactor thermal power when performing plant calorimetric calculations. Any uncertainty in the determination of feedwater mass flow is directly affected by uncertainties in the measurement of feedwater specific volume, which is determined using feedwater temperature and pressure inputs at the feedwater venturi or other flow measurement device.

For the past 20 years, AMS has offered precision feedwater RTD calibration services at the AMS Technology Center, allowing plants to accurately measure feedwater temperature to facilitate accurate determination of feedwater specific volume and venturi nozzle expansion factors. The calibration services are performed in a fully computerized and modern laboratory equipped with state-of-the-art temperature calibration equipment with direct traceability to NIST.

Some plants participate in the feedwater calibration assurance program using two sets of feedwater RTDs so they always have accurately calibrated RTDs. Call AMS for details.
 
AMS Newsletters:

AMS Winter 2011 Newsletter
 
Spring 2010 Newsletter