$9\mathrm{.}14.$ Tuning constants for a PI controller for the following process are to be determined.

$G_p^{\text{'}}(s)G_v(s)G_s(s)=\frac{7\mathrm{.}5e^{-2\mathrm{.}3s}}{8\mathrm{.}5s+1},G_d(s)=\frac{100}{5s+1}$

The control objectives are essentially the same as used in this chapter. A colleague has calculated several sets of values for the controller gain and integral time. Determine which of these sets of constants, if any, is acceptable and explain why or why not.