After proper notice and hearing, the Zoning Hearing Board may, by special exception, authorize the following signs:
A. Time, temperature and/or public information signs may be erected in any zoning district without regard to regulations governing occupancy, height projections or movement, except that all such signs shall conform to §§ 600-1713 through 600-1715, if it is shown to the satisfaction of the Board that such sign, which may also be an identity sign, has the primary function of informing the public. Such signs may also be erected by right if they conform to the regular sign requirements.
B. Other signs which do not lend themselves to the ordinary processes of measurement, because they are integrated in the design of the building structure, or signs designed for a special purpose which makes strict application of this Part difficult or signs that re-create landmark historic signs, may be permitted by the Board when the Board finds such signs to be in conformity with the intent of this Part and appropriate to the type of development or structure to which they are related.