How do I get past the security guards?

Hint 1 of 8:

You don't have much time in this part of the game.

Hint 2 of 8:

It might help to read the plan before you enter the Sludgeworks, and take
note of the access code.

Hint 3 of 8:

There's only one thing that you can use in this room.  Look at the
control panel.