Proline Promass E 100
8 Endress+Hauser
Input
Measured variable Direct measured variables
• Mass flow
•
Density
• Temperature
Calculated measured variables
• Volume flow
• Corrected volume flow
• Reference density
Measuring range Measuring ranges for liquids
DN Measuring range full scale values
min(F)
to
max(F)
[mm] [in] [kg/h] [lb/min]
8 ³⁄₈ 0 to 2 000 0 to 73.50
15 ½ 0 to
6 500 0 to 238.9
25 1 0 to 18 000 0 to 661.5
40 1½ 0 to 45 000 0 to 1 654
50 2 0 to 70 000 0 to 2 573
80 3 0 to 180 000 0 to 6 615
Measuring ranges for gases
The full scale values depend on the density of the gas and can be calculated with the formula below:
max(G)
=
max(F)
· ρ
G
: x
max(G)
Maximum full scale value for gas [kg/h]
max(F)
Maximum full scale value for liquid [kg/h]
max(G)
<
max(F)
max(G)
can never be greater than
max(F)
ρ
G
Gas density in [kg/m³] at operating conditions
x Constant dependent on nominal diameter
DN x
[mm] [in] [kg/m
3
]
8 ³⁄₈ 85
15 ½ 110
25 1 125
40 1½ 125
50 2 125
80 3 155
To calculate the measuring range, use the Applicator sizing tool → 88
Calculation example for gas
• Sensor: Promass E, DN 50
•
Gas: Air with a density of 60.3 kg/m³ (at 20 °C and 50 bar)
• Measuring range (liquid): 70 000 kg/h
• x = 125 kg/m³ (for Promass E, DN 50)
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