Metex Ms 9150 Manual Meat
What are you seeking from the manual? If you're not an EE and don't intend to repair it, then I assume that you want to know its basic functionality and methods of operation. That kind of information will likely be very similar between models. Characteristics that differ between models might be things such as the maximum frequency of the function generator, extra features of a more expensive version, etc., most of which would be apparent when you run into the limitations or don't find the features.
Metex Ms 9150 Manual Meat Bar
Nevertheless, the fundamental concepts and operation will similar. Hence, my original recommendation. Note, too, that others have said that the manuals are sparse.
So, they apparently don't go into great detail about the instruments that comprise the combo. All the more reason to take a look at any that you can, to see what you're up against as far as even getting the information you desire should you be able to locate the manual for the correct model.