NT 208D GB1
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8-4 : « Q Settings » menu ( Flow / Fluid )
∇
Choice of Flow unit:
( l/h …tot … m3/s );
∇
Scale (graphics on PC only) :
Outputs: see menu « General »
∇
Product (+ / -) :
If WATER: C = 1300 to 1600 m/s
If OTHER:
∇
Fluid Characteristic
and speed of sound range :
∇
Hydraulic corrections (+ / -)
N.B.: they concern only S.E. probes
Prefer mode AUTO.
∇
Entry of Coefficient K
H
or following
data to do its calculation
:
If MANUAL: entry of coefficient
depending on profile : Laminar = 1.333
or Turbulent = 1.02 to1.08
If AUTO: entry of parameters:
∇
Fluid viscosity:
∇
Pipe roughness:
As well as the critical Turbulent /
Laminar flow transition:
∇
Critical Reynolds Number (Rey C)
∇
Transition range (LBR):
(
Recommended values)
Q unit = m
3
/h
Qmax (unit)
+/xxxxx.x
Product =
WATER / OTHER
Viscosity (cst)
x.x
Delta C = xxx m/s
Co = xxxx m/s
K Hydro =
AUTO / MANUEL
K Hydro = 1.xxx
Roughness ( m m)
xx.xx
LBR = 3
Rey C = 2800
