【Notification of Manufacturer Change for Panasonic Industrial Devices SUNX Products and Panasonic Industrial Devices SUNX Tatsuno Products】
From April 1, 2024, the terms "Panasonic Industrial Devices SUNX Co., Ltd." and "Panasonic Industrial Devices SUNX Tatsuno Co., Ltd."
in this page and in the manuals and other documents to be downloaded will all be replaced with "Panasonic Industry Co., Ltd." and applied accordingly.
Business > Industrial Devices > Automation Controls Top > Service & Support > FA Technical Support > Technical Guide (FA Sensors) > Flow sensors > Precautions for prorer use
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P1(MPa) Absolute pressure |
P1(MPa) Gauge pressure |
P2(MPa) Absolute pressure |
P2(MPa) Gauge pressure |
Acoustic velocity / Sub-acoustic velocity |
Calculated flow rate value (ℓ/min.) | |||||
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ø0.1mm ø0.004 in |
ø0.2mm ø0.008 in |
ø0.3mm ø0.012 in |
ø0.4mm ø0.016 in |
ø0.5mm ø0.020 in |
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Suction | 0.1013 | 0 | 0.0313 | -0.07 | Acoustic velocity | 0.090 | 0.360 | 0.810 | 1.440 | 2.250 |
0.1013 | 0 | 0.0413 | -0.06 | Acoustic velocity | 0.090 | 0.360 | 0.810 | 1.440 | 2.250 | |
0.1013 | 0 | 0.0513 | -0.05 | Acoustic velocity | 0.090 | 0.360 | 0.810 | 1.440 | 2.250 | |
0.1013 | 0 | 0.0613 | -0.04 | Sub-acoustic velocity | 0.088 | 0.352 | 0.792 | 1.408 | 2.200 | |
0.1013 | 0 | 0.0713 | -0.03 | Sub-acoustic velocity | 0.082 | 0.329 | 0.740 | 1.315 | 2.055 | |
0.1013 | 0 | 0.0813 | -0.02 | Sub-acoustic velocity | 0.072 | 0.287 | 0.645 | 1.147 | 1.792 | |
0.1013 | 0 | 0.0913 | -0.01 | Sub-acoustic velocity | 0.054 | 0.215 | 0.483 | 0.859 | 1.343 | |
Blow (leakage detection) |
0.1113 | 0.01 | 0.1013 | 0 | Sub-acoustic velocity | 0.057 | 0.226 | 0.509 | 0.905 | 1.414 |
0.1213 | 0.02 | 0.1013 | 0 | Sub-acoustic velocity | 0.080 | 0.320 | 0.720 | 1.280 | 2.000 | |
0.1413 | 0.04 | 0.1013 | 0 | Sub-acoustic velocity | 0.113 | 0.453 | 1.018 | 1.810 | 2.828 | |
0.1613 | 0.06 | 0.1013 | 0 | Sub-acoustic velocity | 0.139 | 0.554 | 1.247 | 2.217 | 3.464 | |
0.1813 | 0.08 | 0.1013 | 0 | Sub-acoustic velocity | 0.160 | 0.640 | 1.440 | 2.560 | 4.000 | |
0.2013 | 0.1 | 0.1013 | 0 | Acoustic velocity | 0.179 | 0.716 | 1.610 | 2.862 | 4.472 | |
0.3013 | 0.2 | 0.1013 | 0 | Acoustic velocity | 0.268 | 1.071 | 2.410 | 4.284 | 6.694 | |
0.4013 | 0.3 | 0.1013 | 0 | Acoustic velocity | 0.357 | 1.426 | 3.209 | 5.706 | 8.915 | |
0.5013 | 0.4 | 0.1013 | 0 | Acoustic velocity | 0.445 | 1.782 | 4.009 | 7.127 | 11.137 | |
0.6013 | 0.5 | 0.1013 | 0 | Acoustic velocity | 0.534 | 2.137 | 4.809 | 8.549 | 13.358 |
P1(MPa) Absolute pressure |
P1(MPa) Gauge pressure |
P2(MPa) Absolute pressure |
P2(MPa) Gauge pressure |
Acoustic velocity / Sub-acoustic velocity |
Calculated flow rate value (ℓ/min.) | ||||
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ø0.7mm ø0.027 in |
ø1.0mm ø0.039 in |
ø1.5mm ø0.059 in |
ø2.0mm ø0.079 in |
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Suction | 0.1013 | 0 | 0.0313 | -0.07 | Acoustic velocity | 4.411 | 9.002 | 20.254 | 36.007 |
0.1013 | 0 | 0.0413 | -0.06 | Acoustic velocity | 4.411 | 9.002 | 20.254 | 36.007 | |
0.1013 | 0 | 0.0513 | -0.05 | Acoustic velocity | 4.411 | 9.002 | 20.254 | 36.007 | |
0.1013 | 0 | 0.0613 | -0.04 | Sub-acoustic velocity | 4.312 | 8.800 | 19.801 | 35.202 | |
0.1013 | 0 | 0.0713 | -0.03 | Sub-acoustic velocity | 4.028 | 8.220 | 18.494 | 32.878 | |
0.1013 | 0 | 0.0813 | -0.02 | Sub-acoustic velocity | 3.512 | 7.166 | 16.125 | 28.666 | |
0.1013 | 0 | 0.0913 | -0.01 | Sub-acoustic velocity | 2.631 | 5.370 | 12.083 | 21.480 | |
Blow (leakage detection) |
0.1113 | 0.01 | 0.1013 | 0 | Sub-acoustic velocity | 2.772 | 5.657 | 12.727 | 22.626 |
0.1213 | 0.02 | 0.1013 | 0 | Sub-acoustic velocity | 3.920 | 8.000 | 17.999 | 31.998 | |
0.1413 | 0.04 | 0.1013 | 0 | Sub-acoustic velocity | 5.543 | 11.313 | 25.454 | 45.252 | |
0.1613 | 0.06 | 0.1013 | 0 | Sub-acoustic velocity | 6.789 | 13.856 | 31.175 | 55.423 | |
0.1813 | 0.08 | 0.1013 | 0 | Sub-acoustic velocity | 7.840 | 15.999 | 35.998 | 63.996 | |
0.2013 | 0.1 | 0.1013 | 0 | Acoustic velocity | 8.765 | 17.888 | 40.248 | 71.552 | |
0.3013 | 0.2 | 0.1013 | 0 | Acoustic velocity | 13.119 | 26.774 | 60.242 | 107.096 | |
0.4013 | 0.3 | 0.1013 | 0 | Acoustic velocity | 17.474 | 35.660 | 80.236 | 142.641 | |
0.5013 | 0.4 | 0.1013 | 0 | Acoustic velocity | 21.828 | 44.547 | 100.230 | 178.186 | |
0.6013 | 0.5 | 0.1013 | 0 | Acoustic velocity | 26.182 | 53.433 | 120.224 | 213.731 |
Note 1 : | In case of any leakage from tubes, etc., actual values will differ greatly from calculated values. When measuring flows, make sure that there is no leakage from any tubes. |
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Note 2 : | In case of any points in the tubes which are narrower than the diameter of the suction nozzle, flow rate will be restricted and may turn out to be lower than the calculated values. In addition, suction verification may not be possible in such cases. |
Note 3 : | The effective cross-section area is a guide only. If the nozzle is long and narrow, the effective cross-section area may be smaller than the area at the tip of the nozzle. |
Note 4 : | Response times are determined by the internal volume of the tube from the flow sensor to the suction nozzle (pinhole). If carrying out highspeed sensing, reduce the internal volume of the tube as much as possible such as by locating the flow sensor as close as possible to the suction nozzle. |
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Requests to customers (Automation Control Components & Industrial Device) [Excluding specific product]
Requests to customers (Automation Control Components & Industrial Device) [For specific product]
Requests to customers (FA Sensors & Components [Excluding motors])
Requests to customers (Dedicated to industrial motors)