Constraints on photoionization models for the obscurer in NGC 3783. Dotted black lines give the constraints on total column density allowed by our X-ray spectra in Mehdipour et al. (2017). Solid colored lines specify lower limits on the column densities of the indicated ions. Allowed photoionization solutions lie in the space above these lines. Dashed colored lines give upper limits on the column densities of the indicated low-ionization ions. Allowed photoionization solutions lie in the space below these lines. The shaded parallelogram shows the allowed parameter space, and the magenta dot gives the solution used for fitting the X-ray spectra in Mehdipour et al. (2017).