Compressed Air Systems, Inc.
Compressed Air Systems, Inc.
9303 Stannum Street
Tampa, FL 33619-2658

Compressed Air Systems, Inc. - Central Florida
11609 S Orange Blossom Trail
Orlando, FL 32837

Toll Free: 800.626.8177 • Phone: 813.626.8177 • Fax: 813.628.0187
Email: [email protected] • Web Address:www.compressedairsystems.com
All Categories > Flow Thermal > VD 500 Flowmeters for Compressed Air and Gases > Item # 0695 5001  


Item # 0695 5001, VD 500 18 to 36 Volt (V) Direct Current (DC) Supply Voltage Flowmeter for Compressed Air and Gases
Web Price QUOTE

  • Including temperature measurement, optional: pressure measurement
  • RS 485 interface, Modbus-RTU as standard
  • Integrated display for m³/h and m³
  • Applicable from 1/2" to DN 1000
  • Easy installation under pressure
  • 4...20 mA analog output for m³/h or m³/min





Specifications  · Financing  · Simple Installation and Removal Under Pressure  · Options  · Special Features

Specifications

Ship From Country
US

Parameters
m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0 ºC) in case of gases

Units Adjustable Via Keys at Display
CFM
ft/min
g/s
kg/h
kg/min
l/s
lb/h
lb/min
m/s
m³/h
m³/min

Adjustable Via Keypad
Diameter for volume flow calculation, counter resettable

Sensor
Thermal Mass Flow Sensor

Measured Medium
Air
Gases

Gas Types are Adjustable Over CS Service Software or CS Data Logger
Air
Argon
CO2
Nitrogen
Oxygen
Vacuum

Accuracy
± 0.3% of Full Scale (F.S.)
± 1.5% of Measured Value (M.V.)

Accuracy on Request
± 1.0% of Measured Value (M.V.)
± 0.3% of Full Scale (F.S.)

Sensor Tube Operating Temperature
-22 to 230 ºF

Operating Temperature with Pressure Sensor
-4 to 185 ºC

Housing Operating Temperature
-4 to 158 ºF

Operating Pressure Range1
-14.5 to 725 psi

Digital Output
Modbus-Remote Terminal Unit (RTU)
RS 485 Interface

Optional Digital Output
Ethernet Interface
M-Bus
Power over Ethernet (PoE)

Analog Output for Cubic Feet Per Minute (CFM)
4 to 20 mA

Pulse Output
1 pulse per CF or per liter electrically isolated. Pulse weight can be set on the display. Alternatively, the pulse output can be used as an alarm relay.

Direct Current (DC) Voltage
18 to 36 V

Power Supply
5 W

Burden
<500 Ω

Housing Material
Polycarbonate

Housing Protection Standard
Ingress Protection (IP65)

Sensor Tube
Stainless steel, 1.4301, Installation length 8.6 inch, Ø 0.3 Inch

Mounting Thread
1/2" NPT Male Thread

Housing Diameter
2.5 in

Mounting Position
Any
1 For pressure > 145 psi - order additional high-pressureprotection


Financing

Approve Payments
Finance with Approve Payments



Simple Installation and Removal Under Pressure
1) Even under pressure, the flow probe VA 500 is mounted by means of a standard 1/2" ball valve. During mounting and dismounting the safety 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: 4.72, 6.30, 8.66, 11.81, 15.75 inches, (longer probes available on request).

The flow probes are therefore suitable for being mounted into existing pipes with diameters of 1/2" to DN 300 upwards. The exact positioning of the sensor in the middle of the pipe is granted by means of the engraved depth scale. The maximum mounting depth corresponds to the respective probe length. (Probe length 8.66 inch = 220 mm maximum mounting depth).

2) If there is no suitable measuring site with 1/2" ball valve, there are two easy ways to set up a measuring site:
A Weld on a 1/2" screw neck and screw on a 1/2" ball valve
B Mount spot drilling collar incl. ball valve.

By means of the drilling jig, it is possible to drill under pressure through the 1/2" ball valve into the existing pipe. The drilling chips are collected in a filter. Then install the probe as described under 1).

3) Due to the large measuring range of the probe even extreme requirements to the consumption measurement (high volume flow in small pipe diameters) can be met.

The measuring range is depending on the pipe diameter.


Options
Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow. A meter reading is available for each flow direction.
The sensor can be removed during operation and cleaned if necessary.


Special Features
  • Pulse output for m³ or M-Bus (optional)
  • Inner diameter adjustable by means of keys
  • Flow meter can be reset
  • Adjustable by means of keypad on the display: Reference conditions, °C and mbar, 4...20 mA scaling, pulse weight