Flow meter for measuring compressor performance — VD 500
.jpg "Расходомер для измерения производительности компрессоров — VD 500")
.jpg "Расходомер для измерения производительности компрессоров — VD 500")
.jpg "Расходомер для измерения производительности компрессоров — VD 500")
.jpg "Расходомер для измерения производительности компрессоров — VD 500")
.jpg "Расходомер для измерения производительности компрессоров — VD 500")
.jpg "Расходомер для измерения производительности компрессоров — VD 500")
Спецификация VD 500
Available on request
Delivery across Russia
Order phone: +7(800)777-18-50
Description
The sensitive element is a precise differential pressure sensor that measures differential/dynamic pressure. The pressure depends on the flow velocity of the corresponding gas. Using the known pipeline diameter, it is easy to determine the flow rate of gas or compressed air. Thanks to additional measurements of temperature and absolute pressure, as well as the calculation of the corresponding density, measurements of various gases can be carried out over wide temperature and pressure ranges.
Advantages
- New capability: unique sensitivity in the lower measurement range - flow measurement from 2 m/s, covering the entire operating range of variable speed drive (VSD) compressors.
- Ideal for measuring extremely high flow rates
- Measured parameters: flow, total consumption, temperature, and pressure.
- Operation at high temperatures: maximum medium temperature: 180 °C.
- Application range: can be used in pipelines from DN 20 to DN 600.
- Pressure installation using a 1/2" ball valve
- Specifications
- Overall Drawing
- Connection diagram
- Applications
| Specifications | |
| Measurement range | 2–224 nm/s / up to 600 nm/s (for compressed air) 0.04 to 500 mbar differential gas pressure |
| Measuring medium | Air, non-aggressive gases |
| Accuracy | ± 1.5 % of measured value |
| Measurement principle | Differential pressure |
| Measurement limit | 1:100 |
| Response time | t 99: < 1 s |
| Medium temperature | -30°...+180° C |
| Operating pressure | 1...+30 bar |
| Ambient temperature | 20 °…+70 °C |
| Power supply | 18…36 (V) DC, 5 W |
| Output signals | Standard: RS 485 (Modbus-RTU), 4...20 mA pulse output. Optional: Ethernet (PoE), M-Bus, IO-Link |
Electrical connection
| Connector A | Connector B |
 |
 |
| Pin number | Pin color | Function (Connector A) |
Function (Connector B) |
| Pin 1 | brown | +VB | NC |
| Pin 2 | white | RS 485 (A) | GND |
| Pin 3 | blue | -VB | DIR |
| Pin 4 | black | RS 485 (B) | Pulse (galvanically isolated) |
| Pin 5 | gray | I+ 4..20 mA |
Pulse (galvanically isolated) |
| Designation | Comment |
| -VB | Power supply negative 0 V |
| +VB | Power supply positive 12...30 VDC |
| I + | Current signal 4..20 mA – selected measurement |
| RS 485 (A) | Modbus RTU A |
| Pulse | Pulse output for accumulated flow |
| NC | Do not connect to voltage and/or ground. Cut and insulate the contacts |
| RS 485 (B) | Modbus RTU B |
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