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Users Manual
16
Measuring Flow
1. Press F.
2. The Meter requests the duct shape and size. The Meter stores the last duct shape and
size that is entered. If the duct is different than the stored version, press D or E
to find the proper duct type for the measurement (rectangular or round).
3. Press I to select the duct type.
4. If the duct is rectangular, use D and E to select the X dimension and press I
to store it. Use D and Eto select the Y dimension. Hold D or Eto
increase the rate of change. Press I to store it.
5. If the duct is round, use D and E to select the duct diameter and press I to
store it.
6. To measure flow, refer to Steps 2 - 3 in "Measuring Velocity".
Note
If Measure Velocity measures negative on the display, check to make sure that the
hoses are attached to the correct ports on the Meter and the pitot tube.