An insulative material is applied to one or more selected probe tips to disable those probes, and the probes are brought into contact with a semiconductor die. The barrier unit comprises a surface having a regular polygonal perimeter with a plurality of substantially parallel sides, each of which terminates in at least one loop integral with the surface. The frame assembly includes a raised rectangular step above which the rear portion of the hold-down is positioned, with the protruding ridge adapted to fit over the step such that the protruding ridge overhangs the step and properly aligns the finger-like front portion of the hold-down with the knife sections of the sickle bar. The polar and equatorial lobes of a magnetic particle such as SPIO produce signals from excited water molecules near the particle which are frequency offset above and below the frequency of signals from water molecules unaffected by the particle. The invention can determine whether both a first device and a second device are accessible and if both the first and second devices are determined to be accessible, transmitting a first subset of the information to the first device from the server and transmitting a second subset of the information to the second device from the server. An exemplary apparatus can include hydrocarbon well instruments, a SCADA system, a process integration server andor dynamic field data analyzing computer, and memorycomputer readable media storing a dynamic field data analyzing computer program.