Comparison inline sensors / measuring tubes |
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Vortex
flow sensors
VA Di |
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Gaseous mediums |
air/gases |
air/gases |
air/gases |
Liquid medium |
liquids resembling water |
- |
- |
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Main areas of application |
measurement in unpolluted gases,
not liable to condensation |
stationary measuring also in particle and condensation-laden gases |
air mass flow measurement, pressurized air quantity measurement |
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Measurable variable |
actual flow rate |
actual flow rate |
standard flow ratemass flow |
Measuring ranges in stages |
0.2...120 m/s |
0.4 ... 40 m/s |
0.08...200 Nm/s |
Volume flow measuring ranges in stages |
bis 1132 m3/h |
0.7 ... 4523 m3/h |
0.04 bis 988 Nm3/h |
Maximum working pressure above atmospheric |
1 MPa /10 bar |
1 MPa /10 bar |
2,5 MPa /25 bar |
Working temperature range |
-40 °C...+550 °C |
-10 ... +180°C |
-10 °C...+240 °C |
Temperature measuring range (with integrated sensor Pt100) |
- |
- |
-10 °C...+240 °C |
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Ex-protection zone 0 / category 1 (gases) |
yes |
yes |
yes |
Ex-protection zone 1 / category 2 (gases) |
yes |
yes |
yes |
Ex-protection zone 20 / category 1D (dust) |
yes |
yes |
yes |
Ex-protection zone 21 / category 2D (dust) |
yes |
yes |
yes |
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Materials in contact with the medium |
stainless steel, aluminium, PVDF, ... |
stainless steel ... |
stainless steel, ... |
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Measuring tube inside diameter Di in stages |
9.7 - 100 mm |
25 ... 200 mm |
8 - 41.8 mm |
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Sensor with directional sensing |
FAR |
VAR |
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