FH950 User Manual English - Hachflow
FH950 User Manual English - Hachflow
FH950 User Manual English - Hachflow
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Table 10 General accessories (continued)<br />
Description<br />
Item no.<br />
• Weight pin 43035M<br />
• 6.8 kg (15 lb) lead weight 43040<br />
Thumb screw kit (includes four thumb screws) 9073200<br />
Universal sensor mount 75015<br />
USB cable 9070800<br />
1 Cable is ordered separately by the foot.<br />
Appendix<br />
Mean-section and Mid-section methods<br />
The user can select the Mean-section or the Mid-section method for flow calculations. The Meansection<br />
method divides the cross-section into individual flow segments. Pairs of adjacent verticals are<br />
the limits of the segments. The two edges of the cross-section are given values of 0 for the velocity<br />
and depth. The total flow is the sum of the partial flows of all segments. Figure 15 shows the<br />
definitions and the equation for the Mean-section method.<br />
Figure 15 Mean-section method<br />
Where:<br />
V = velocity at vertical<br />
b = distance to vertical from bank<br />
h = depth at vertical<br />
q = flow at vertical<br />
The Mid-section method also divides the cross-section into individual flow segments. With the Midsection<br />
method, the segments are not between verticals but are defined by half of the distance to<br />
<strong>English</strong> 31
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