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. 

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