Abstract: A pH system that is able to compensate for variations in pressure and conductivity is disclosed. The system includes a pH sensor, a pressure sensor and optionally a conductivity sensor, the outputs of each are transmitted to a controller. The controller multiplies a compensation coefficient by the difference in pressure between the measured pressure and a threshold pressure. This result is then added to the measured pH value. Further, the compensation coefficient is a function of the conductivity of the solution. In some instances, the compensation coefficient is calculated by raising the conductivity to a power and multiplying that result by a constant. This pH system may be incorporated into various bioprocessing systems, such as multi-column chromatography systems and viral inactivation systems.

Abstract: The present disclosure provides a cargo bar having high load strength. The cargo bar generally comprises an outer sheath and an inner cylindrical telescoping portion. The telescoping portion has a ribbed section with ribs formed from the walls of the telescoping portion. Fastened to the outer sheath is a handle mechanism comprising a handle frame and a lever, the lever having teeth for gripping the ribs of the inner telescoping portion. The handle may be moved from an open position to a closed position, thereby extending the inner portion away from the outer portion through the interaction of the teeth with the ribs of the inner bar. Increased strength is provided by the ribs formed from the walls of the telescoping portion.