The invention features a novel isolated Family B DNA polymerase, a Thermococcus polymerase JDF-3, and mutant recombinant forms thereof. The device includes a bench that is supported in a generally horizontal use position and that is pivoted so that it can be moved up to an upright stowed position and held in place in the stowed position. The dynamic search algorithms may alter a sequence of reference voltages used to successively approximate the analog input voltage based on one or more characteristics of the analog input voltage.