It means that the pressure reading when the zeroing part of the analytical method is done it is outside the limits. It could mean that the sample outlet is plugged, the sample fill solenoid is stuck or the pressure transducer is damaged.
Gary is the Manager for the Multiwave Photometer, Reid Vapor Pressure Analyzer and Dynamic Reflux Sampler. He recied a BS in Chemistry from Fairmont State Unitversity. He joined ABB in 1989 as an Application Engineer for the Multiwave Phtometer and later moved into product management.
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