Production Description Original imported Economical compressed air
CS VA500 flow meter with RS485
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 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 |
Features Original imported Economical compressed air CS VA500 flow meter
with RS485
Easy installation and removal under pressure
1)Even under pressure, the flow sensor VA 500 is mounted by means
of a stan- dard 1/2“ ball valve. During mounting and dismounting
the circlip ring avoids an uncontrolled ejection of the probe which
may be caused by the operating pressure.
For the mounting into different pipe diameters VA 500 is available
in the following probe lengths: 120, 160, 220,
300, 400 mm.
So the flow sensors are being mounted into existing pipelines with
inner diame- ters of 1/2“ upwards.
The exact positioning of the sensor in the middle of the pipe is
granted by means of the engraved depth scale. The maxi- mum
mounting depth corresponds with the resprective probe length.
Example: VA 500 with probe length 220 mm has a maximum mounting
depth of 220 mm.
2)If there is no suitable measuring point with 1/2 “ball valve,
there are two easy ways to set up a measuring point:
A Weld on a 1/2“ screw neck and screw on a 1/2“ ball valve
B Mount spot drilling collar incl. ball valve (see accessories)
Drill holes can be drilled through the 1/2” ball valve into the
existing tubing with the help of the drilling device, the drill
chips are collected in a filter, then the probe is installed as
described under 1).
3)Due to the large measuring range of the probe even extreme
requirements to the flow measurement (high volume flow in small
pipe diameters) can be met.
The measuring range is depending on the pipe diameter - see table
on the right hand side.
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
