Which range is correct for the Scan Delay timer?

• A. 0 to 60 seconds
• B. 5 to 60 seconds
• C. 15 to 120 seconds
• D. 10 to 180 seconds

Answer: (C)

The key idea is balancing enough time for the sensor signals to settle and collect stable data against keeping the scanning cycle efficient. If the delay is too short, transient noise or sensor warm-up effects right after a scan can be mistaken for signals, leading to false alarms. If the delay is too long, the overall scanning process becomes sluggish and throughput drops.

A range of 15 to 120 seconds provides a practical middle ground: long enough for reliable stabilization and data integration, but not so long that it unduly slows operations. The other options either start too close to zero, risking instability and false readings, or extend too far, which would hamper responsiveness. Hence, 15 to 120 seconds is the best fit for a reliable yet efficient scanning cadence.