Rh longitud, Nivel = p ÷ (pe × d), M = d × pe × v – GF Signet 9900 Transmitter User Manual
Page 53: V = π × r, V = l × a × h, V = a × l
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Transmisor 9900
53
Referencia técnica para medición de nivel, volumen
y masa
El 9900 puede efectuar automáticamente cálculos
de nivel, volumen y masa:
● Presión a nivel
● Masa
● Volumen
Conversión de presión a nivel:
Nivel = P ÷ (PE × D)
donde P = Presión
PE = Peso específi co del fl uido
D = Densidad del agua
Si la presión está en lb/pulg.²:
Nivel (metros) = 0,703069 x (P/PE)
Si la presión está en bares:
Nivel (metros) = 1,019715 x (P/PE)
Conversión de masa
m = D × PE × V
donde m = masa del fl uido
D = Densidad del agua = 1000 kg/m
3
PE = Peso específi co del fl uido
V = Volumen del fl uido (m
3
)
m (kg) = 1000
×
PE
×
V
r
h
Longitud
A
Apéndice
Cálculos de volumen
Cilindro vertical:
V = π × r
2
× h
donde r = radio del cilindro
h = altura del fl uido
Recipiente rectangular:
V = l × a × h
donde a = ancho
l
=
longitud
h
=
altura
Cilindro horizontal:
V = A × L
donde A = área del segmento
L = longitud del recipiente
donde r = radio del recipiente
h = altura del segmento
(
)
⎥
⎦
⎤
⎢
⎣
⎡
−
Ч
⎟⎟⎠
⎞
⎜⎜⎝
⎛
−
−
⎟
⎠
⎞
⎜
⎝
⎛
−
Ч
Ч
=
−
2
cos
1
2
h
rh
h
r
r
h
r
r
A
2
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