18-10-2010, 01:13 PM
DIRTFT
Do It Right The First Time
Do It Right The First Time
Concept:
All parameters needed for measurement and validation are “local” to the sensor
Sensor sends only high quality data to DCS for process control
Hardware
UOP Guided Wave 300P Spectrometers
Multiplexed applications
~200 analyzer years experience
Bi-directional MODBUS link to DCS
Analyzer returns MEASUREMENT and STATUS value for control action
DCS sends commands and key process parameters
Example Applications
Measurement Validation
Adaptive Sensor
Auto Calibration Maintenance
Measurement Validation
Sensor validates EACH measurement by combining:
Calibration Model Statistics
Outlier detection, fit parameters . . .
Hardware parameters
System voltages, scan time, detector noise . . .
Process (environmental) Data
Pressures, temperatures, flows . . .
For more information about this article,please follow the link:
http://www.googleurl?sa=t&source=web&cd=...ensors.ppt&ei=-fm7TI6hOYemcJ79hO0M&usg=AFQjCNFiijSIaai9urconCWmvogvWouYpw