Pressure Scanner Interface and Power Supply

The Chell ScanPSU is an interface that facilitates the connection of the Pressure Systems ESP scanners to third party acquisition systems. The interface accepts a single DC supply and provides the +/- 12 and 5 volt scanner supplies. All supplies are high stability and low noise and in addition to this, two discrete supplies are used for the 5 volt excitation for the two scanners to remove any cross talk. This allows scanners to be removed or replaced without invalidating the calibrations. The interface includes the level shifting electronics to adapt open collector, 5 or 12 volt logic to the CMOS levels that the scanners use. The power supply is a housed in an aluminium case and is potted to provide increased reliability in harsh vibration environmentsLStat

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