Replacement of autoclave Me-24 temperature controller. Autoclave Me-24 which is used as a passivity equipment of metal in order it rate of corrosion has four haeting systems including their temperature controllers. Replacement of the temperature controllers are inevitable implemented because the controllers is impossible because of both expiry in component and module level of the controllers. Therefor replacement with similar type and performance has to be implemented. This paper describes technical consideration, step design and results of test measurement in the controller repalcement, so that the autoclave can work normally as before.