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KROHNE
KROHNE H250-RR Variable Area Flow Meter
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المعاملات الرئيسية
Accuracy
±1.6% of measured value (VDI/VDE 3513-2, qG=50%); optional precision calibration
Measuring Principle
Variable area (float) — all-metal H250 with M40 indicator
Variant
H250/RR low-flow cone/float combinations (DN15 / 1/2")
Turndown
10:1 standard; optional 100:1
Process Temperature
Up to −196…+400 °C depending on configuration / modules
Process Pressure
Up to ~1000 barg / 14500 psig depending on design
| المعامل | القيمة |
|---|---|
| Accuracy | ±1.6% of measured value (VDI/VDE 3513-2, qG=50%); optional precision calibration |
| Measuring Principle | Variable area (float) — all-metal H250 with M40 indicator |
| Variant | H250/RR low-flow cone/float combinations (DN15 / 1/2") |
| Turndown | 10:1 standard; optional 100:1 |
| Process Temperature | Up to −196…+400 °C depending on configuration / modules |
| Process Pressure | Up to ~1000 barg / 14500 psig depending on design |
| Connections | Flange DN15…150 / ½…6"; also NPT, G, hygienic |
| Outputs Modules | Mechanical indicator; optional NAMUR/reed limits, 4…20 mA HART, FF/PA, totalizer LCD |
| Protection | IP66/IP68 / NEMA 4X/6; optional IP69K |
| Ex | Universal Ex concept (Ex i / Ex d / Ex t / Ex nA) |
| Application | Low-flow liquid/gas process measurement without auxiliary power |