Xi'an Yunyi Instrument Co., Ltd
Xi'an Yunyiyibiao Instrument Co., Ltd. is a national high-tech enterprise, specializing in the R&D, production and sales of pressure transmitter,level meter, flow , temperature instrument and
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Production Description Original imported Economical compressed air CS VA500 flow meter with RS485
Display shows 2 values at the same time:
•Actual flow in m³/h, l/min,...
•Total consumption (counter reading) in m³, l
•resp. temperature measurement
Values indicated in the display turnab- le by 180°C, e.g. in case of overhead installation
Detailed Images Original imported Economical compressed air CS VA500 flow meter with RS485
Specification Original imported Economical compressed air CS VA500 flow meter with RS485
| TECHNICAL DATA VA 520 | |
| Parameters: | m³/h, l/min (1000 mbar,20 °C) at compressed air,or Nm³/h, Nl/min (1013,.mbar, 0 °C) for gases |
| Units adjustable via keys at 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: | Thermal mass flow sensor |
| Measuring medium | Air, gases |
| Gas types are adjus- table over CS service | Air, nitrogen, argon, heli- um, CO2, oxygen, vacuum |
| Measure range: | See table |
| Accuracy: (m.v.: of meas. value) (f.s.: of full scale) | ± 1.5 % of m.v. ± 0.3 % of f.s. on request ± 1.0 % of m.v. ± 0.3 % of f.s. |
| Operating temperature: | -30...80 °C |
| Operating pressure: | -1 to 16 bar optional to PN 40 |
| Digital output: | RS 485 interface (Modbus-RTU), Optional: Ethernet-Interface PoE), M-Bus |
| Analog output: | 4...20 mA for m³/h e. g. l/min; |
| Pulse output: | 1 Pulse per m³ or per liter galvani- cally isolated. Pulse value can be set on the display. Alternatively, the pulse output can be used as an alarm relay |
| Supply: | 18...36 VDC, 5 W |
| Burden: | < 500 K |
| Housing: | Polycarbonate (IP 65) |
| Measuring section: | stainless steel, 1.4301 or 1.4571 |
| Process connection: | Flange (to DIN EN 1092-1e. g. ANSI 150 Ibs or ANSI 300 Ibs) |
| Ø Casing: | 65 mm |
| Mounting position: | any |
Features Original imported Economical compressed air CS VA500 flow meter with RS485
Easy installation in existing piping through integrated measuring sec-
tion (1/4” to 2“)
High measuring accuracy due to defined measuring section (inlet and outlet section)
•Digital interfaces such as Modbus RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy ma- nagement systems, building management systems, SPS,...
•Easy and auordable installation
•Units freely selectable via keys at the display m³/h, m³/min, l/min, l/s, kg/h, kg/min, kg/s, cfm
•Compressed air counter up to 1.999.999.999 m³. Resetable to „zero“ via keypad
•Analogue output 4...20 mA, pulse output (galvanically separated)
•High measuring accuracy also in the lower measuring range (ideal for leakage measurement)
•Negligibly small loss of pressure
•Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
•Comprehensive diagnosis functions can be read out at the display or by remote access via Modbus-RTU like e. g. exceeding Max./ Min values °C, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
Applications Original imported Economical compressed air CS VA500 flow meter with RS485
Compressed air flow and distribution
Flow and distribution of process gases such as carbon dioxide, hydrogen, nitrogen, oxygen flow
Explosive gases such as natural gas, hydrogen, biogas
Corrosive gases such as biogas
Fuel and gas supply in furnaces, boilers, industrial furnaces
gas in cooler
Gas injection metering control
Selection Guide Original imported Economical compressed air CS VA500 flow meter with RS485