Endress+Hauser Proline Promass E 500 - Input; Direct Measured Variables

Proline Promass E 500 PROFIBUS PA Technical data
Endress+Hauser 263
16.3 Input
Measured variable Direct measured variables
• Mass flow
• Density
• Temperature
Calculated measured variables
• Volume flow
• Corrected volume flow
• Reference density
Measuring range Measuring range 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 range for gases
The full scale value depends on the density and the sound velocity of the gas used. The full scale value can be
calculated with the following formulas:

max(G)
= Minimum of (
max(F)
· ρ
G
: x ) and
(ρ
G
· (c
G
/2) · d
i
2
· (π/4) · 3600 · n)

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 Limitation constant for max. gas flow [kg/m³]
c
G
Sound velocity (gas) [m/s]
d
i
Measuring tube internal diameter [m]
π Pi
n = 2 Number of measuring tubes
DN x
[mm] [in] [kg/m
3
]
8 ³⁄₈ 85
15 ½ 110
25 1 125