Comparator/reference checks for permanently installed hygrometers. The useful result is not defined by the instrument name alone: the measurement point, sample or equipment condition, range, response, pressure and temperature, possible interferences, installation, data interfaces, and reference basis determine whether a configuration is appropriate.

Blue Dragon Technology uses the Core relationship map to identify relevant instruments, then qualifies the final configuration against the project. The system boundary may also include sampling or mounting hardware, utilities, signal integration, alarms, verification, FAT/SAT, commissioning, training, spares, and controlled documentation.