I build a manual pushbutton without chatter, so the rectangel is up to 5 V very fast (i measured it with a Tektronix oscilloscope ). When i let of the pushbotton, the voltage decrease to 0 V. But i control the length by hand.

Release: 5.19
ADC212-100: V13 on LPT1

The signal is a rectangle.

Thanks for help

Hi, I have a problem with the trigger of the ADC-212/100: So when I set the trigger to 1ms/unit everything works fine, but i need a unit about 1us/unit. The triggger doesn't work. The trigger doesn't starts at 1V, it starts when i press the "go" button directly. Can everyone tell me what is wrong: h...