Measure Noisy AC Voltages
The following applies to these APMs:
- M1 & M2 Meters
- Volt Meter
The APM automatically measures noisy AC voltages.
It samples the voltage input at a rate of 62 KHz. The samples then go through a digital low-pass filter before being displayed. The low pass filter allows frequencies below about 5 KHz to pass through but block higher frequencies.