Cubemass DCI
Endress+Hauser 11
Flow values (examples)
Basis for calculations→ ä 11.
Repeatability Basis for calculations→ ä 11.
o.r. = of reading
Mass flow and volume flow (liquids)
• ±0.05% o.r. (mass flow)
• ±0.05% o.r. (volume flow)
Density (liquids)
• ±0.0005 g/cc
1 g/cc = 1 kg/l
Temperature
±0.25 °C ± 0.0025 · T °C
(±0.5 °F ± 0.0015 · (T – 32) °F)
T = Fluid temperature
Influence of medium
temperature
When there is a difference between the temperature for zero point adjustment and the process temperature,
the typical measured error is ±0.0002% of the full scale value / °C (±0.0001% of the full scale value / °F).
Influence of medium pressure The tables below shows the effect on accuracy of mass flow due to a difference between calibration pressure
and process pressure.
Basis for calculations Depends on the flow:
• Flow ≥ zero point stability : (basic accuracy : 100)
- Max. measured error: ±basic accuracy in % o.r.
- Repeatability: ±½ · basic accuracy in % o.r.
• Flow < zero point stability : (basic 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
Flow rate Maximum measured error
[kg/h] [lb/min] [% o.r.]
0.1 0.0037 0.8
0.7 0.0257 0.114
2.5 0.0919 0.1
15 0.5513 0.1
DN Medium pressure
[mm] [inch] [% o.r./bar] [% o.r./psi]
1 1/24" −0.001 −0.00007
2 1/12" 0 0
41/8" −0.005 −0.0004
6¼" −0.003 −0.0002
o.r. = of reading
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