This article provides Meantime Between Failure (MTBF) information for AccuTouch Technology.

AccuTouch touchscreens have a calculated Mean Time Between Failures (MTBF) of over 490,000 hours. This value is derived from a combination of product return data and observed hours of usage in the field. Below is a breakdown of how this figure was determined.

MTBF Definition and Assumptions

• Probability of Survival (R): 0.989
  This reflects the reliability of the touchscreen over a specified time period.

• Estimated Median Usage (t): 5,420 hours per year
  Usage assumptions range from:

  • Minimum: 8 hrs/day, 5 days/week, 52 weeks/year → 2,080 hrs/year

  • Maximum: 24 hrs/day, 365 days/year → 8,760 hrs/year
    The median usage of 5,420 hrs/year is used for the calculation.

MTBF Formula and Calculation

The standard reliability formula is:

Plugging in the known values:

Summary

The MTBF for AccuTouch touchscreens is approximately 490,012 hours, indicating high reliability and long operational life in real-world conditions.