VI
13.4 Maintenance ........................................................................................................................... 169
Appendix A Specifications .............................................................................................................. 170
A.1 Electrical Safety Classifications ............................................................................................ 170
A.2 Power Supply ........................................................................................................................ 170
A.3 Battery ................................................................................................................................... 170
A.4 Machine Specifications ......................................................................................................... 171
A.5 Display Specifications ........................................................................................................... 171
A.6 Technical Specifications ........................................................................................................ 171
A.7 Operating, Storage and Transportation Environment ........................................................... 173
A.7.1 Operating Environment ................................................................................................. 173
A.7.2 Storage and Transportation Environment ..................................................................... 173
A.8 Transducer Specifications ..................................................................................................... 173
Appendix B Ultrasound Intensity and Safety ................................................................................ 174
B.1 Ultrasound in Medicine ......................................................................................................... 174
B.2 Ultrasound Safety and the ALARA Principle ......................................................................... 174
B.3 Explanation of MI/TI .............................................................................................................. 175
B.3.1 MI (Mechanical Index) ................................................................................................... 175
B.3.2 TI (Thermal Index) ......................................................................................................... 175
B.3.3 Display of MI/TI ............................................................................................................. 176
B.4 Acoustic Output ..................................................................................................................... 176
B.4.1 Factors that Contribute to Uncertainty in the Output Display ....................................... 176
B.4.2 Differences between Actual and Displayed MI/TI ......................................................... 176
B.4.3 Measurement Uncertainty ............................................................................................. 176
B.4.4 Acoustic Power Default Settings ................................................................................... 177
B.5 Operator Control Features .................................................................................................... 177
B.6 Prudent Use Statement ......................................................................................................... 177
B.7 References for Acoustic Output and Safety .......................................................................... 177
B.8 Transducer Acoustic Output Data ......................................................................................... 178
Appendix C Order List ..................................................................................................................... 179
Appendix D EMC Information.......................................................................................................... 181
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