Practice question

What is the standard method for testing the detection zone of an inductive loop detector?

  1. Walking across the loop with a metal clipboard
  2. Driving a standard passenger vehicle over the loop at the normal approach speed and verifying detection on the controller
  3. Measuring the loop inductance with an LCR meter
  4. Checking the LED indicator on the detector amplifier card

Answer: B — Driving a standard passenger vehicle over the loop at the normal approach speed and verifying detection on the controller

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