Preventive Maintenance and Calibration

Preventive maintenance should be performed at regular intervals to ensure optimum performance and prolonged lifespan of the machine.  The maintenance frequency is dependent on the operating environment of the machine and its usage.  High volume usage and/or excessive contaminant or dust levels generally require more frequent maintenance.

System calibration should be performed at the OEM’s recommended interval, which may be as frequent as every quarter.  Performance tests should be conducted annually to ensure the system meets its published accuracy specifications.

Bravo offers a bundled service package, normally performed annually and biannually, that combines preventive maintenance, calibration and performance testing into one on-site event.  All calibrations include as-left performance test data.  Customers can choose an optional ISO 17025 accredited calibration that includes as-found data, as-left data and measurement uncertainties.

In-Circuit Test Systems Currently Supported

  • DigitalTest
  • GenRad / Teradyne GR227X, GR228X, TS8X
  • GenRad GR Accelerate
  • IPTE TSR
  • Teradyne 18XX, Spectrum
  • Agilent 3070 Unix Systems

GenRad / Teradyne Accuracy Verification

Performance tests ensure that an instrument is in proper operating condition and that each instrument function meets its accuracy specification.  This presents a unique challenge when considering an in-circuit tester that consists of several instruments and even more instrument functions.  Bravo’s System Verification Program (SVP) meets that challenge.  The SVP is a comprehensive battery of automated tests that checks the full range of GenRad / Teradyne 228X and Test Station instrument functions against their accuracy specifications.

The SVP uses external reference standards along with the Bravo “smart” fixture, which stores all test performance data for later archival.  The program generates a system test report and a calibration report that includes out-of-tolerance limits, test uncertainty ratio, and measurement uncertainty.