- Products
- Condition monitoring
- Water flow meter
- SU ultrasonic flowmeters for water and oil based media
- SU2621
Ultrasonic flow meter
SU2621
SUN21XFBFRKG/US
Ultrasonic flow meter
SU2621
SUN21XFBFRKG/US
- Accurate flow measurement of ultrapure water and water
- A robust, component-free measuring pipe made of stainless steel offers high media resistance and permanent ingress resistance
- The highly accurate inline measurement process eliminates any influence of varying wall thicknesses and pipe materials
- Operating status LED signals the sensor status and allows conclusions about process quality
- Convenient operation via buttons or parameter setting via IO-Link
Product characteristics
Measuring range |
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Process connection | 2" NPT DN50 external thread |
Application
System | gold-plated contacts | ||
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Media | ultra-pure water; water; water-based media | ||
Note on media |
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Medium temperature |
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Min. bursting pressure |
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Pressure rating |
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Vacuum resistance [mbar] | -1000 | ||
MAWP (for applications according to CRN) [bar] | 100 |
Electrical data
Operating voltage [V] | 18...32 DC; (to SELV/PELV) |
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Current consumption [mA] | < 75 |
Protection class | III |
Reverse polarity protection | yes |
Power-on delay time [s] | 5 |
Measuring principle | ultrasonic |
Inputs
Inputs | counter reset |
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Outputs
Total number of outputs | 2 |
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Output signal | switching signal; pulse signal; analog signal; IO-Link; frequency signal; diagnostic signal; totalizer switching signal |
Electrical design | PNP/NPN |
Output function | normally open / closed; (configurable) |
Max. voltage drop switching output DC [V] | 2 |
Permanent current rating of switching output DC [mA] | 100 |
Switching frequency DC [Hz] | 0...10000 |
Analog current output [mA] | 4...20 |
Max. load [Ω] | 500 |
Pulse output | flow rate meter |
Short-circuit protection | yes |
Type of short-circuit protection | yes (non-latching) |
Overload protection | yes |
Measuring/setting range
Measuring range |
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Display range |
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Resolution |
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Set point SP |
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Reset point rP |
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Analog start point ASP |
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Analog end point AEP |
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Low flow cut-off LFC |
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Frequency end point, FEP |
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Frequency at the end point FRP [Hz] | 1...10000 |
Pulse length [s] | 0.002...2 |
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Pulse value | 0.1...99990000 I; 0.026...26414563.515 gal |
Measuring range |
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Display range |
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Resolution [°C] | 0.1 | ||
Set point SP |
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Reset point rP |
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Analog start point |
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Analog end point |
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Frequency start point, FSP |
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Frequency end point, FEP |
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Frequency at the end point FRP [Hz] | 1...10000 |
Accuracy / deviations
Accuracy (in the measuring range) | ± (1,0 % MW + 0,5 % MEW) |
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Repeatability | ± 0,2 % MEW |
Accuracy [K] | ± 2,5 (Q > 5 % MEW) |
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Temperature coefficient [% of the span / 10 K] | 0,2 |
Reaction times
Response time [s] | < 0.25; (dAP = 0, T09) |
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Damping process value dAP [s] | 0...5 |
Dynamic response T05 / T09 [s] | 5,7 / 86 |
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Software / programming
Diagnostic functions | direction of flow detection; signal quality |
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Interfaces
Communication interface | IO-Link | ||||||||||||||
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Transmission type | COM2 (38,4 kBaud) | ||||||||||||||
IO-Link revision | 1.1.3 | ||||||||||||||
SDCI standard | IEC 61131-9: 2013-07 | ||||||||||||||
Profiles |
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Required master port class | A | ||||||||||||||
Process data analog | 3 | ||||||||||||||
Process data binary | 2 | ||||||||||||||
Min. process cycle time [ms] | 9.6 | ||||||||||||||
IO-Link process data (cyclical) |
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Supported DeviceIDs |
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Operating conditions
Ambient temperature [°C] | -20...60 |
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Storage temperature [°C] | -25...80 |
Protection | IP 67 |
Tests / approvals
EMC |
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CPA approval |
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Shock resistance |
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Vibration resistance |
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MTTF [years] | 160 | ||||
UL approval |
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Pressure equipment directive | can be used for group 2 fluids; group 1 fluids on request |
Mechanical data
Weight [g] | 1384.5 |
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Type of mounting | inlet pipe length 5xDN; outlet pipe length 1xDN |
Material | housing: stainless steel (1.4404 / 316L); Display: PFA; sealing Display: FKM; connector: POKAN |
Materials (wetted parts) | Pipe section: stainless steel (1.4404 / 316L) |
Process connection | 2" NPT DN50 external thread |
Surface characteristics Ra/Rz of the wetted parts | 49.21 µin |
Displays / operating elements
Display |
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Accessories
Items supplied |
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Remarks
Remarks |
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Pack quantity | 1 pcs. |
Electrical connection
Connection | Connector: 1 x M12; coding: A; Contacts: gold-plated |
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Diagrams and graphs
Note on pressure loss
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derating ambient temperature
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