KROHNE OPTISWIRL 4070 Quickstart EN - Manual (Page 24)

4
TECHNICAL DATA
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OPTISWIRL 4070
www.krohne.com 06/2010 - 4000122102 - QS OPTISWIRL R04 en
Technical data
4.1 Technical data
INFORMATION!
•
The following data is provided for general applications. If you require data that is more
relevant to your specific application, please contact us or your local representative.
• Additional information (certificates, special tools, software,...) and complete product
documentation can be downloaded free of charge from the website (Download Center).
Measuring system
Application range Flow measurement of liquids, gases and vapours
Operating method / measuring principle Karman vortex street
Measured value Measured value Measured value Measured value
Primary measured value Number of separated vortices
Secondary measured value Operating and standard volumetric flow, mass flow
Signal converter Signal converter Signal converter Signal converter
Versions Compact
Option: Ex version
Measuring sensor Measuring sensor Measuring sensor Measuring sensor
Standard Basic device in flange version (with integrated temperature measurement)
Basic device in sandwich version (with integrated temperature
measurement)
Optional Basic device with additional pressure measurement
Basic device with additional pressure measurement and shut-off valve for
pressure sensor
Dual measuring device in both flange and sandwich version (redundant
measurement)
Dual measuring device in flange version with additional pressure
measurement
Display and user interface Display and user interface Display and user interface Display and user interface
Local display 2 lines, 10 characters per line
Operating and display languages German, English, French
Measuring accuracy
Reference condition Water at 20ºC
Air at 20°C and 1.013 bar abs.
Accuracy Based on volume flow
Liquids ± 0.75% of measured value (Re ≥ 20000)
± 2.0% of measured value (10000 < Re < 20000)
Gases and steams ± 1.0% of measured value (Re ≥ 20000)
± 2.0% of measured value (10000 < Re < 20000)
Pressure and temperature compensation: ±1.5% of measured value (Re ≥
20000); ±2.5% of measured value (10000 < Re < 20000)
Repeatability ± 0.1% of measured value
Long-term stability ± 0.01% of measured value
QS_OPTISWIRL4070_R04_en_122102_PRT.book Page 24 Monday, June 7, 2010 8:51 AM