I just received a response from a tech at Lincoln Electric concerning this new machine and wanted to share...
Rob,
The Pipeliner 200 D and the Classic 300 D are both tapped-output machines
so they are similar in that regard, but they do have different generator
systems due to the capacity of the machines. I am not sure why your
Classic 300 D seems to be ramping up when an arc is struck, or why it runs
colder than what you are expecting. It is not something I can
troubleshoot from these comments. This may be something that a Lincoln
field service shop needs to evaluate. You can contact Jeff Spraggins in
our Service Dept. per the above if you need help locating a Lincoln field
service shop.
The SAE-300 does not use taps to set the coarse current. Instead it has a
continuous coarse current dial. When used along with the OCV/fine current
dial, it has Dual Continuous Control, similar to the SAE-400, SAE-500 and
the old SAE motor-generator units. It was compared against a Pipeliner 200
D and it produced better welding results becuase of the ability to tune the
arc better to what an operator prefers for pipe welding. We had similar
comments on field test. We have not had an opportunity to compare this to
the Classic 300 D yet, but I am anticipating similar results.
The new SAE-300 does not require a Custom Arc dial to adjust engine speed
and OCV. It is also anticipated that an owner will never need to "roll
the rack" on this product to improve the sweet spot for welding output.
If you are thinking of buying a new welder, especially for pipe welding,
this would probably be an excellent choice for you.
No one presently working at Lincoln Electric knows with certainty what SAE
stands for. It has been around for so long that all the retirees who might
have known are no longer living! One guess has been "Sheld Arc
Electrode". It could also be "Shield Arc Equipment". I wish I knew for
sure too!