User Manual

gpm Average Frequency **UUT Hz Counts/GAL UUT K (Hz × 60)/NK gpm Error (% FS)
15.00 769.7 3078.59 14.90 –0.65
9.06 466.1 3086.75 9.03 –0.38
5.49 285.2 3118.64 5.52 0.65
3.32 171.7 3103.95 3.32 0.17
2.00 103.6 3101.80 2.01 0.10
**UUT = Unit Under Test
If this meter produced an actual linear output, the K factor calculation for the Unit Under Test would be exactly the same for
each measurement point. Inspection of the UUT K in the example provided shows that this is not the case and indicates that
this meter is not a perfectly linear device.
Many programmable displays allow for linearization and can provide a better match of the displayed flow values with the
actual flow values by incorporating more measurement points. In the example, the unit would be programmed for six points,
the five data points and a zero point, and use pairs of input values to accomplish the linearization.
DIMENSIONS
Figure 9: Dimensions
Programming Manual
Page 17 November 2013