Appendix; Mean-Section And Mid-Section Methods - Hach FH950 User Manual

Description
• Link connector
• Weight hanger
• Weight pin
• 6.8 kg (15 lb) lead weight
Thumb screw kit (includes four thumb screws)
Universal sensor mount
USB cable

Appendix

Mean-section and Mid-section methods

The user can select the Mean-section or the Mid-section method for flow calculations. The Mean-
section method divides the cross-section into individual flow segments. Pairs of adjacent verticals are
the limits of the segments. The two edges of the cross-section are given values of 0 for the velocity
and depth. The total flow is the sum of the partial flows of all segments.
definitions and the equation for the Mean-section method.
Figure 15 Mean-section method
Where:
V = velocity at vertical
b = distance to vertical from bank
h = depth at vertical
32 English
Table 10 General accessories (continued)
Item no.
43025
43030XX01
43035M
43040
9073200
75015
9070800
Figure 15 shows the