Technical data, 4 measuring accuracy – KROHNE OPTIFLUX 2000 EN User Manual
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TECHNICAL DATA
6
39
OPTIFLUX 2000
www.krohne.com
4/2014 - 4000839504 - HB OPTIFLUX 2000 R04 en
6.4 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
• Operating pressure: 1 bar / 14.5 psi
• Inlet section: ≥ 5 DN
• Electrical conductivity: ≥ 300 μS/cm
Accuracy
Figure 6-4: Flow velocity vs. accuracy
X [m/s] : flow velocity
Y [%]: deviation from the actual measured value (mv)
Sensor diameter
Converter
type
Accuracy
Curve
DN25...1200 / 1...48"
IFC 050
0.5% of mv above 0,5 m/s,
below 0,5 m/s, deviation ± 2.5 mm/s
1
DN25...1200 / 1...48"
IFC 100
0.3% of mv + 1 mm/s
3
DN25...1600 / 1...64"
IFC 300
0.2% of mv + 1 mm/s
4
DN1800...3000 / > 64"
IFC 300
0.3% of mv + 2 mm/s
2