Proline Promass 80S, 83S
Hauser
15
Influence of fluid pressure
The table below shows the effect on accuracy of mass flow due to a difference between calibration
pressure and process pressure.
Design fundamentals
o.r. = of reading
BaseAccu = base accuracy in % o.r.
BaseRepeat = base repeatability in % o.r.
MeasValue = measured value (in flow units consistent with the zero point stability value
→
13)
ZeroPoint = zero point stability
Calculation of the maximum measured error depending on flowrate
Calculation of the repeatability depending on flowrate
Example for maximum measured error
A0016709
E = Error: Maximum measured error as % o.r. (example Promass 83S)
Q = Flow rate as %
DN
Promass S
[mm]
[in]
[% o.r./bar]
8
³
⁄
₈
"
–0.002
15
½"
–0.006
25
1"
–0.005
40
1½"
–0.005
50
2"
–0.005
Flowrate (in flow units consistent with the zero
point stability value
→
13)
Maximum measured error in % o.r.
A0021332
A0021339
A002133
A0021334
Flowrate (in flow units consistent with the zero
point stability value
→
13)
Repeatability in % o.r.
A0021335
A0021340
A0021336
A0021337
ZeroPoint
BaseAccu
⋅
100
³
± BaseAccu
ZeroPoint
BaseAccu
⋅
100
<
ZeroPoint
MeasValue
⋅
100
±
½
⋅
ZeroPoint
BaseRepeat
⋅
100
³
½
⋅
ZeroPoint
BaseRepeat
⋅
100
<
ZeroPoint
MeasValue
⋅
100
½
⋅
±
E [%]
0
10
20
30
40
50
60
0
0.5
1.0
1.5
2.0
2.5
70
80
90
100 Q [%]
Содержание Proline Promass 80S
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