| Payment Terms | T/T, Western Union | 
| Supply Ability | 20pcs per week | 
| Delivery Time | 15work days | 
| Packaging Details | Carton Packaging | 
| Name | VA500 / VA520 gas flow meter | 
| Digital output | RS 485 interface (Modbus-RTU) | 
| Measuring medium | Air, gas | 
| Accuracy | ± 1.5 % of m.v. ± 0.3 % of f.s | 
| Operating temperature | -30...110 °C probe tube -30...80 °C housing | 
| Operating pressure | -1...50 bar | 
| Mounting thread | G 1/2“ | 
| Warranty | 1 year | 
| Brand Name | Yunyi | 
| Model Number | VA500 CS Flow Meter | 
| Certification | CE | 
| Place of Origin | China | 
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | 20pcs per week | 
| Delivery Time | 15work days | Packaging Details | Carton Packaging | 
| Name | VA500 / VA520 gas flow meter | Digital output | RS 485 interface (Modbus-RTU) | 
| Measuring medium | Air, gas | Accuracy | ± 1.5 % of m.v. ± 0.3 % of f.s | 
| Operating temperature | -30...110 °C probe tube -30...80 °C housing | Operating pressure | -1...50 bar | 
| Mounting thread | G 1/2“ | Warranty | 1 year | 
| Brand Name | Yunyi | Model Number | VA500 CS Flow Meter | 
| Certification | CE | Place of Origin | China | 
| High Light | VA500 Thermal Mass Air Flow Sensor ,CS Thermal Mass Air Flow Sensor ,VA500 CS Flow Meter | ||
Thermal mass flow sensor for compressed air and gases / CS Flow Meter VA500 with display
Description
 Contrary to the previously used bridge circuit the newly developed evaluation electronics records all measured values digitally.
Recording and reducing energy costs and CO2 emissions while increasing the sustainability of any compressed air system. With our VA500 it is possible to monitor your consumption and analyze your leakage flows with just one measuring device. Due to its design, it is also ideal for mobile measurements.
Detailed image
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Specification
| TECHNICAL DATA VA 500 | |
| Parameters: |  			 m³/h, l/min (1000 mbar, 20 °C) in case of compressed air resp. Nm³/h, Nl/min (1013 mbar, 0 °C) in case of 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  |  		
| Adjustable via keypad: |  			 Diameter for volume flow calculati- on, counter resettable  |  		
| Sensor: | Thermal mass flow sensor | 
| Measuring medium | Air, gases | 
| Gas types are adjustable over CS service software or CS data logger: | Air, nitrogen, argon, helium, CO2, oxygen, vacuum | 
| Measure range: | See table page 75 | 
|  			 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...110 °C probe tube -30...80 °C housing  |  		
| Operating pressure: | -1...50 bar | 
| 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) | 
| Probe tube: | Stainless steel, 1.4301 Mounting length 220 mm, Ø 10 mm | 
| Mounting thread: | G 1/2“ | 
| Ø Casing: | 65 mm | 
| Mounting position: | any | 
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Features
Measurement of mass flow direct output of standard volume flow
 Highly accurate at small as well as higher flow rates
 Pressure and temperature compensated by the thermal mass flow principle
 Quick and easy installation via a ½" ball valve
 No moving parts, thus low maintenance
 Vanishingly low pressure drop due to vanishingly low blockage of the diameter
 Can be used for compressed air and non-corrosive gases such as nitrogen, oxygen, argon, helium, etc.
Contact US
 Xi'an Yunyi Instrument Co., Ltd
 E-mail: judy@369yb.com
 Phone/WhatsApp:0086 17602903009
 Add.: Room B11003, 10th Floor, Sihai Center, No. 424, Taihua North Road, Weiyang District, Xi'an 710021, Shaanxi,China
Company Details
Business Type:
Manufacturer,Exporter 
Year Established:
2007 
Total Annual:
1000000-2000000
Employee Number:
150~200 
Ecer Certification:
Verified Supplier 
YUN YI ,we are professional manufacturer that engaged in the fields of pressure measurement instrument. we have 12 years sensor producing and developing experiences Xi'an Yunyi Instrument Co., Ltd is a professional R&D center and manufacture of measuring instruments.And here's a vari... YUN YI ,we are professional manufacturer that engaged in the fields of pressure measurement instrument. we have 12 years sensor producing and developing experiences Xi'an Yunyi Instrument Co., Ltd is a professional R&D center and manufacture of measuring instruments.And here's a vari...
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