CS INSTRUMENTS VA520 Consumption meter with integrated DN 25 measuring section with welding neck flange
Der VA 520 ist ein festinstallierter Durchflusszähler. Er überwacht den Verbrauch und analysiert Leckagen, ideal für Verteilerstationen und zur Abrechnung individueller Verbraucher.
CS Instruments
As a leading manufacturer of compressed air measurement technology, CS INSTRUMENTS stands for highest quality and innovation. "Made in Germany" is our practice - development, production, and calibration take place exclusively in Germany.
VA 520 DN 25 - Thermal mass flow sensor for flow measurement
Optimize your energy costs and increase sustainability with the VA 520 Consumption meter with integrated DN 25 measuring section with flange. This permanently installed flow meter monitors your consumption and analyzes leaks - ideal for distribution stations, departments or for billing individual consumers.
Advantages of the compact VA 520 flow sensor:
- Measuring accuracy: High accuracy when measuring the mass flow with direct output of the standard volume flow.
• Kompensiert: Druck- und temperaturkompensiert durch das thermische Massenstromprinzip.
- Easy handling: Quick replacement and cleaning thanks to the integrated measuring section.
- Easy to maintain: Virtually maintenance-free thanks to the absence of moving parts.
- Pressure loss: Negligible blockage of the diameter.
- Compatibility: Suitable for compressed air and non-corrosive gases.
• Schnittstellen: Standardmäßig 04…20 mA, Puls, Modbus-RTU (RS 485), optional auch Modbus TCP, PoE und M-Bus.
- Measuring range: Up to 40 bar pressure and -30 to 80°C temperature.
- Protection class: IP65, optimum protection against environmental influences.
- Display: Displays measured values and enables simple settings.
- Reset: Counter reading can be reset directly via the display.
- Precision: Accuracy of ± 1.5% or ± 1% of the measured value.
Technical details of the VA 520:
- Digital interfaces: Connection to energy management and building management systems possible.
- Easy installation: Quickly ready for use.
- Flexible unit selection: Selectable via the display (m³/h, l/min, kg/h, etc.).
- High measuring accuracy: Also ideal for leakage measurements in the lower measuring range.
- Calorimetric principle: No additional pressure or temperature measurement required.
- Diagnostic functions: Comprehensive diagnostics and parameter queries via Modbus RTU.
| Burden | < 500 Ω |
| Operating temperature (°C) | -30…80 °C, -20...80 °C mit Drucksensor |
| Measured variables | m³/h, l/min (1000 mbar, 20 °C) for compressed air or Nm³/h, Nl/min (1013 mbar, 0 °C) for gases |
| Units via keypad on the display | m³/h, m³/min, l/min, l/s, ft/min, cfm, m/s, kg/h, kg/min, g/s, lb/min, lb/h |
| Sensor | Thermischer Massenstromsensor |
| Measuring medium | Luft, Gase |
| Gas types via CS Service Software or | Luft, Stickstoff, Argon, CO2, Sauerstoff |
| Accuracy (v. M. = from measured value) (v. E. |
± 1,5 % v. M. ± 0,3 % v. E. auf Wunsch: ± 1 % v. M. ± 0,3 % v. E. |
| Operating pressure (bar) | -1 bis 16 bar optional bis PN 40 |
| Digital output | RS 485 Schnittstelle (Modbus-RTU), optional: Ethernet-Interface PoE, M-Bus |
| Analogue output | 4…20 mA für m³/h bzw. l/min |
| Pulse output | 1 Impuls pro m³ bzw. pro Liter galvanisch isoliert. Impulswertigkeit am Display einstellbar. Alternativ ist der Impulsausgang als Alarmrelais nutzbar |
| Supply | 18…36 VDC, 5 W |
| Housing | Polycarbonate (IP 65) |
| Installation position | beliebig |
| Measuring section | Edelstahl, 1.4404 oder 1.4301 |