Chapter 1 Introduction | Series 24-HP Instruction Manual |
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As shown in Figure 1-3, Innova-Mass™ meters exhibit a constant Strou- hal number across a large range of Reynolds numbers, indicating a con- sistent linear output over a wide range of flows and fluid types. Below this linear range, the intelligent electronics in Innova-Mass automatically corrects for the variation in the Strouhal number with the Reynolds num- ber. The meter’s smart electronics corrects for this non-linearity via its simultaneous measurements of the process fluid temperature and pres- sure. This data is then used to calculate the Reynolds number in real time. Innova-Mass meters automatically correct down to a Reynolds number of 5,000.
Corrected range
0.3
Linear range
0.2
0.1
0.0
103 | | 104 | 10 5 | 10 6 | 107 | 10 8 |
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| | | 5000 | Reynolds Number, Re | |
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Figure 1-3. Reynolds Number Range for the Innova-Mass
Temperature Measurement
Innova-Mass Flow Meters use a 1000 ohm platinum resistance temperature detector (PRTD) to measure fluid temperature.
