Model-independent determination of $Z^{\mathrm{\prime }}$ couplings at LEP 200

All couplings of a new heavy gauge boson to ordinary fermions can be determined in a model-independent way at a large $e^{+}{e}^{-}$ collider for large enough statistics. No such determination is possible at LEP 200, however, because its design integrated luminosity is too low for existing and forthcoming limits on $Z^{\mathrm{\prime }}$ interactions. At any rate, it should be possible to distinguish between models for $Z^{\mathrm{\prime }}$ masses $<1TeV$, or to set limits of this order on $Z^{\mathrm{\prime }}$ masses for definite models. These are (preliminary) $1\sigma$ limits. We neglect systematic errors and assume an integrated luminosity of $0.5f{b}^{-1}$.