Proline Promass 80
Technical data
Hauser
85
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
Performance characteristic
Promass I
Maximum measured error
The following values refer to the pulse/frequency output.
The additional measured error at the current output is typically ±5
μ
A.
Design fundamentals
87.
o.r. = of reading; 1 g/cc = 1 kg/l; T = medium temperature
• Mass flow and volume flow (liquid): ±0.15% o.r.
• Mass flow (gas): ±0.50% o.r.
• Density (liquid)
±0.0005 g/cc (under reference conditions)
±0.0005 g/cc (after field density calibration under process conditions)
±0.004 g/cc (after special density calibration)
±0.02 g/cc (over the entire measuring range of the sensor)
Special density calibration (optional):
– Calibration range: 0.0 to 1.8 g/cc, +10 to +80 °C (+50 to +176 °F)
– Operation range: 0.0 to 5.0 g/cc, –50 to +150 °C (–58 to +302 °F)
• Temperature: ±0.5 °C ± 0.005 · T °C; (±1 °F ± 0.003 · (T - 32) °F)
DN
Promass H Zirconium 702/R 60702
Promass H Tantalum 2.5W
[mm]
[inch]
[% o.r./bar]
[% o.r./bar]
8
3/8"
–0.017
–0.005
15
½"
–0.021
–0.005
25
1"
–0.013
–0.050
40
1 ½"
–0.018
–
50
2"
–0.020
–
o.r. = of reading
Base accuracy for
Mass flow liquids
0.15
Volume flow liquids
0.15
Mass flow gases (only Tantalum 2.5W)
0.50
