Strategic Maintenance Planning Ltd.’s. HolisTech™ Web CMMS now has included as standard functionality ‘Mean Time Between Failure’ (MTBF) and ‘Mean Time to Repair’ (MTTR) reporting within its Analytic module. The formula for these analytics are as follows:
Mean Time Between Failure (MTBF) = (Actual Runtime – Total Time of Equipment Failure) / Number of Equipment Failures
Mean Time to Repair (MTTR) = Total Time of Equipment Failure / Number of Equipment Failures
Above is a screen shot of the MTBF and MTTR analytic for the date range 17/09/13 – 17/19/14. The bar charts have drill down functionality and summarise the MTBF and MTTR as a total and for each period within the date range. In this example, for the equipment included within the analytic (as per the defined filter), the following results are shown:
MTBF = 6.67hrs.
MTTR = 2.82hrs.