"not in scale" is correct and can be used in written English.
It is an idiom that means something is not proportional or relative to something else. Example: The cost of the project did not match the benefits, so it was not in scale.
Since no feasible amount of reading can fix that, what's called for is a change not in scale but in strategy.
The software virus attack appeared to be similar in kind, but not in scale, to the "ILOVEYOU" virus that temporarily paralyzed tens of millions of computers last month, penetrating networks in government and companies worldwide.
But my sense of belonging is a little less, and I have a slight (and perhaps slightly embittering) feeling of betrayal – similar in kind though not in scale to those loyal communities in the old empire such as the Anglo-Indians, who came to believe in the end that they had hitched their fortunes to the wrong star.
It also suggests that the state and city recognize Governors Island as more than real estate: Its history and location give the island the potential to become one of the great civic undertakings in New York City, a rival in beauty, if not in scale, to Central Park and Prospect Park.
A simplified scheme of geometry is schematically drawn in Fig. 1 (not in scale).
3D representation (not in scale) of the mechanical ((Omega_{M})) and hydrological ((Omega_{H})) domains.
Vishneva is not huge in scale; she does not have the lay-down-the-law quality that one often sees in great ballerinas.
A tube map is not an in-scale representation of the city you are in.
It is reminiscent of some stepped Mayan pyramid, not least in scale, but is entirely natural.
The stations would be somewhat modest affairs, numerous but not grand in scale like Union Station.
