An important consideration for successful implementation of spectroscopic analyzers is the ability to continually validate the performance of the analyzer system’s hardware components. The ASTM D6122 standard addresses this concern by out lining testing requirements.
The Stability Monitoring System SMS™ is a hardware/software package that continuously monitors the accuracy and precision of the analyzer thus ensuring the NIR-O analyzer is producing validated spectra for your applications. The SMS exceeds the requirements of ASTM D6122 for analyzer validation without the need for consumables or human interaction. A fiber optic jumper cable must be installed on channel 6 or 12.
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The NIR-O™ process analyzer and LAB NIR-O™ laboratory analyzer are at the core of a comprehensive system that includes the spectrometer, one or more NIR probes, fiber optic cables, and scanning and analysis software. OmniView is the software controlling all aspects of a NIR-O analyzer, and OmniLab controls LAB NIR-O. This software provides full control of the analyzer operations, diagnostics, data manipulation, maintenance and event logging, trend graphs and alarms, calibration model security, and control of inputs and outputs.
Our NIR-O process analyzer is the core of a comprehensive system that includes the spectrometer, one or more NIR probes, fiber optic cables, and OmniView™ scanning and analysis software. The SMS is an optional, added component for NIR-O which includes hardware and software to perform analyzer validation according to ASTM methodology.
Typical SMS Level 0 Validation Process
A flow chart depicting a typical SMS level 0 validation flow diagram (Fig 1). The SMS operation is seamlessly integrated into the OmniView control software. SMS provides assurance that all of the ASTM required measurements are conducted at the appropriate time and will send a signal or message to the control system if a validation issue is encountered.
The performance tests identified in the ASTM practice are diagnostics that can be used to detect changes in analyzer performance. This validation provides assurance that the measurement produced by the analyzer is a result of equipment that is operating properly. Since this is a hands-off procedure, it can be conducted in the background with no human intervention. The validation is done with an internal filter having a characteristic spectral signature. There are no liquids or other external sampling modes that are necessary.
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