4-39. EVALUATION AND INTERPRETATION
To calculate the mAs produced by the exposure, multiply the mA used by the
measured exposure time.
4-40. PREVENTIVE MAINTENANCE
The automatic exposure timer system should be checked routinely every six
months, following any service repair work on the AET system, and when suspected
4-41. CORRECTIVE MAINTENANCE
Contact a service representative or engineer if one or more than one of the
standards are not met.