What does the Display Zero function do?
The Display Zero function allows you to display zero when the input is below a specific value.
This is useful in situations where there is noise around zero and you do not want to display this on the APM. For example, if you are monitoring a 600VAC circuit you may want to set Display Zero to 10 so that the meter will display 0.000 volts when the input is below 10 volts.