Pulsing is normal
To change the pressure/calibrate the controller, you can do it yourself or get it to do it automatically...
You have 3 buttons on the controller face
Press and hold the left and right of the 3 until 'cal' is on the screen.
*Scroll all the way down until you get to 'aut'
Press enter (the right button of the 3)
After a few seconds the controller will settle on a number*
(Skip this if doing it manually)
Select a number/pressure setting
Press enter
Controller calibrated