Tables Used

QM2 - Instrument Register.
QM6 - Measurement Register - it is researched when there is an attempt to delete an instrument. When there are registered measurements, the system will not allow to delete it.
QMR - Reducers/Tolerances Register - when you delete an instrument, reducers and Tolerances registered for it will be delete in this file.
QA2 - General Text Register - it has the Historic and Complement texts.
SI3 - Departments Register - it shows you the Department to which the instrument belongs.                                  
QMG - calibration point Register to instruments of Calibrator type or Complete Calibrator.                                        
QMK - Range Register associated with the Family  - it is used to verify which ranges are associated with the Instrument Family, to request the Tolerances/Reducers typing.    
QM9 - Range Register.