Endress+Hauser Proline Promass 80 - Repeatability; Flow measurement

10 Technical data PROline Promass 80
86 Endress+Hauser
• Special density calibration (optional), not for high-temperature version
calibration range = 0.8...1.8 g/cc, 5...80 °C:
Promass F: ±0.001 g/cc
Promass M, A, H: ±0.002 g/cc
Promass I: ±0.004 g/cc
• Standard calibration:
Promass F: ±0.01 g/cc
Promass M, E, A, H, I: ±0.02 g/cc
Temperature
±0.5 °C ±0.005 x T (T = fluid temperature in °C)
Repeatability Flow measurement
• Mass flow (liquid):
Promass F, M, A, H, I:
±0.05% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
Promass E: ±0.20% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
• Mass flow (gas):
Promass F, M, A, I: ±0.25% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
Promass E: ±0.35% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
• Volume flow (liquid):
Promass F: ±0.05% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
Promass M, A: ±0.10% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
Promass E: ±0.25% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
Promass H, I: ±0.20% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
o.r. = of reading
Zero point stability: see “Max. measured error”
Calculation example (mass flow, liquid):
Given: Promass 80 F / DN 25, flow = 8000 kg/h
Repeatability: ±0.05% ± [1/2 x (zero point stability / measured value) x 100]% o.r.
Repeatability
→ ±0.05% ± 1/2 ⋅ = ±0.0556%
Density measurement (liquid)
Promass F: ±0.00025 g/cc (1 g/cc = 1 kg/l)
Promass M, H, E, A: ±0.0005 g/cc
Promass I: ±0.001 g/cc
Temperature measurement
±0.25 °C ±0.0025 x T (T = fluid temperature in °C)
Influence of medium
temperature
When there is a difference between the temperature for zero point adjustment and the
process temperature, the typical measured error of the Promass F, M, A, H and I sensor
is ±0.0002% of the full scale value / °C. The typical measured error of the Promass E
sensor is ±0.0003% of the full scale value / °C.
0,9 kg/h
8000 kg/h
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100 %⋅