Proline Promass 80E, 83E
14
Hauser
Repeatability
Base repeatability
Design fundamentals
ä
14.
o.r. = of reading; 1 g/cm
= 1 kg/l; T = medium temperature
Mass flow and volume flow (liquids)
Promass 83E:
• ±0.075% o.r.
• Calibration option mass flow 0.1%: ±0.05% o.r.
Promass 80E:
• ±0.10% o.r.
Mass flow (gases)
Promass 80E, 83E: ±0.35% o.r.
Density (liquids)
±0.00025 g/cm³
Temperature
±0.25 °C ± 0.0025 · T °C (±1 °F ± 0.003 · (T – 32) °F)
Influence of fluid
temperature
When there is a difference between the temperature for zero point adjustment and the process
temperature, the typical measured error of the Promass sensor is ±0.0002% of the full scale value / °C
(±0.0001% of the full scale value / °F).
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
ä
13)
ZeroPoint = zero point stability
Calculation of the maximum measured error depending on flowrate
DN
Promass E
[mm]
[inch]
[% o.r./bar]
8
³
⁄
₈
""
no influence
15
½"
no influence
25
1"
no influence
40
1½"
no influence
50
2"
–0.009
80
3"
–0.020
o.r. = of reading
Flowrate (in flow units consistent with the zero
point stability value
ä
13)
Maximum measured error in % o.r.
A0021332
A0021339
A002133
A0021334
ZeroPoint
BaseAccu
⋅
100
³
± BaseAccu
ZeroPoint
BaseAccu
⋅
100
<
ZeroPoint
MeasValue
⋅
100
±
Содержание Proline Promass 80E
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