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NetScanner™ 9816/98RK Rackmount Ethernet Intelligent Pressure ScannerThe Model 98RK Scanner Interface Rack houses up to eight 16 channel Model 9816 Pneumatic Intelligent Pressure Scanners networked via the Ethernet interface. |
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Series 9816/98RK Features
Series 9816/98RK Applications
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The chassis provides hub circuitry for up to twelve 10BaseT connections as well as scanner power supply and pneumatic connections. The chassis supports networking as many as three external remote NetScanner™ System components such as the Model 9022 Liquid Pressure Scanner or the Model 9032 Barometer in addition to interfacing with the host computer. Model 9816 Pneumatic Intelligent Pressure Scanners integrate 16 silicon piezoresistive pressure sensors of any pressure range with a microprocessor in a convenient rackmounted housing. Each field-replaceable pressure sensor incorporates a temperature sensor and an integral EEPROM for storage of calibration data as well as sensor identification information such as pressure range, factory calibration date, and user-managed last or next calibration date. Integrating the EEPROM within the sensor enables simple field replacement of transducers with automatic uploading of sensor data during power up. The microprocessor uses the data from the EEPROM to correct for sensor zero, span, linearity and thermal errors. It also performs digital temperature compensation of the sensors to reduce thermal errors by a factor of ten or more over conventional sensor compensation. The microprocessor also controls the actuation of an integral manifold to execute on-line zero or span calibrations upon request. This capability virtually eliminates sensor zero drift error and provides guaranteed system accuracy of up to ±0.05% FS (Full Scale) after rezero. The 9016 can sample using up to three concurrent scan lists at continuous rates up to 100 measurements per channel per second in engineering units. Pressure data in engineering units is output through a 10 Mbit Ethernet interface supporting both TCP and UDP protocols. The scanner is supplied with comprehensive Visual Basic-based software called NUSS for PC compatible computers. Firmware upgrades are made available at no charge via PSI's website and can be downloaded to the scanner over the Ethernet interface using NUSS. The Model 98RK chassis with integral Model 9816 scanners form a central component of the NetScanner™ System. Multiple NetScanner components measuring a variety of parameters and sharing the same command set can be networked to form a distributed intelligent data acquisition system.
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