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ii
Measuring Differential Pressure ................................................................. 12
Measuring Velocity ..................................................................................... 14
Velocity Measurement ............................................................................ 14
Measuring Flow .......................................................................................... 16
The Setup Menu......................................................................................... 17
Clearing Sample Data ................................................................................ 18
Recall ......................................................................................................... 19
Maintenance............................................................................................... 19
Cleaning.................................................................................................. 20
Replacing the Batteries........................................................................... 20
Specifications ............................................................................................. 22
Agency Approvals................................................................................... 24
Replacement Parts..................................................................................... 24
Accessories and Optional Items ................................................................. 25