FLUME SELECTION
The
FLUME SELECTION
menu will only appear in
FLOW
mode.
Use
È
and
Æ
to select the correct Flume or Weir.
Use
È
and
Æ
again to select the Size then
È
to
Store?
and
Æ
to
Yes
.
Press
È
or
Ç
to store flume selection and get to
CALIBRATION
mode.
TRAPEZOIDAL: This menu selection supports 60° trapezoidal flumes only.
CUSTOM FLUMES: Experimental or empirical data for any flume or weir can be reduced to an
equation of the form
Q = K Hn
where:
Q
is flow volume
K
is as scaling factor which includes flume size and units of flow measurement
n
describes the flume non-linearity
H
is the level being measured
Use the Greyline Utility program
FIND K&n.exe
to determine
K
and
n
constants from entered data. Select
CUSTOM
for flumes or weirs not listed in the Menu. At the
K:
prompt enter a ‘K’ constant. At the
n:
enter an ‘n’ constant.
SLT32 Level & Flow Monitor
Manual Series B.11
Page 10
Store?
Yes
CALIBRATION
FLUME SELECTION
FLOW MODE ONLY
V-Notch
>
Palmer Bowlus >
Leopold-Lagco >
Rect. Weir
>
Rect.Weir w/EC >
Khafagi
>
Trapezoidal
>
Custom
More>
22.5 30 45 60
0
9
4"
6"
8"
10">
12"
15"
18">
21"
24"
42">
6" 8" 10" 12" >
18" 24" 30" 36">
Size 1.000 ft
Size 1.000 ft
Size 1.000 ft
Sml
Lrg
ExLrg
K =
1.0000
N =
1.0000
Parshall
>
1"
2"
3"
6
>
9"
12"
18" >
24"
36"
48" >
UNITS/MODE
