KROHNE OPTIFLUX 1000 EN - Manual (Page 29)

TECHNICAL DATA
6
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OPTIFLUX 1000
www.krohne.com 04/2014 - 4000846303 - HB OPTIFLUX 1000 R03 en
6.3 Measuring accuracy
Each flowmeter is standard wet calibrated under reference conditions by direct volume
comparison. The performance of the flowmeter is defined and documented in an individual
calibration certificate.
Reference conditions
• Medium: water
• Temperature: +10...30°C / +50...86°F
• Pressure: 1 bar / 14.5 psi
• Inlet section: ≥ 5 DN
• Electrical conductivity: ≥ 300 μS/cm
Accuracy
Figure 6-2: Flow velocity vs. accuracy
X [m/s]: flow velocity
Y [%]: deviation from the actual measured value (mv)
Sensor diameter Converter
type Accuracy Curve
DN10...150 / 3/8...6" IFC 050 0.5% of mv above 0.5 m/s
below 0.5 m/s, deviation ± 2.5 mm/s
3
DN10...150 / 3/8...6" IFC 100 0.4% of mv + 1 mm/s 2
DN10...150 / 3/8...6" IFC 300 0.3% of mv + 2 mm/s 1