Garrett 712120 VNT Hella 6NW 008 412 actuator.
Garrett 712120 VNT Hella 6NW 008 412 actuator.
(11-04-2009, 09:36 PM)300SD81I know. The one I have is maybe 3x older than the benz(11-04-2009, 04:53 PM)winmutt I like the #2 and particularly the alarm idea in #3.
My pressure sensors came in the fedex truck today. I am just going to suck it up and buy a scope since I can't find a decent one to borrow.
You shouldn't need too good of a scope if your only using it to look at the PWM output. Mines older than my Benz and completely out of calibration, but I can still find 140Hz pretty easily. Just connect your scope to 60Hz AC, mine can take up to 300V, so I just use wall power, but it shoudln't be took hard to find a transformer that outputs 5, 9 or 12 VAC. Adjust it so that 60Hz takes up 7 units on the display, then connect your PWM to the scope, only changing the voltage sensitivity, 140Hz should be 3 units.
(11-04-2009, 09:36 PM)300SD81I know. The one I have is maybe 3x older than the benz(11-04-2009, 04:53 PM)winmutt I like the #2 and particularly the alarm idea in #3.
My pressure sensors came in the fedex truck today. I am just going to suck it up and buy a scope since I can't find a decent one to borrow.
You shouldn't need too good of a scope if your only using it to look at the PWM output. Mines older than my Benz and completely out of calibration, but I can still find 140Hz pretty easily. Just connect your scope to 60Hz AC, mine can take up to 300V, so I just use wall power, but it shoudln't be took hard to find a transformer that outputs 5, 9 or 12 VAC. Adjust it so that 60Hz takes up 7 units on the display, then connect your PWM to the scope, only changing the voltage sensitivity, 140Hz should be 3 units.