Technical data
Proline Promass 80
92
Hauser
Influence of medium pressure
The table below shows the effect on accuracy of mass flow due to a difference between calibration
pressure and process pressure.
Design fundamentals
Dependent on the flow:
• Flow
Zero point stability ÷ (Base accuracy ÷ 100)
– Max. measured error: ±Base accuracy in % o.r.
– Repeatability: ± ½ · Base accuracy in % o.r.
• Flow < Zero point stability ÷ (Base accuracy ÷ 100)
– Max. measured error: ± (Zero point stability ÷ measured value) · 100% o.r.
– Repeatability: ± ½ · (Zero point stability ÷ measured value) · 100% o.r.
o.r. = of reading
DN
[mm]
[inch]
[% o.r./bar]
8
3/8"
–0.002
15
½"
–0.006
25
1"
–0.005
40
1 ½"
–0.005
50
2"
–0.005
o.r. = of reading
Base accuracy for
Mass flow liquids
0.15
Volume flow liquids
0.15
Mass flow gases
0.50
