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No inlet section necessary - integrated flow straightener - optional pressure sensor

The newly developed VA 525 combines modern digital interfaces for connection to an energy monitoring system with a small, compact design. The VA 525 is always used when many machines (compressed air consumers) are to be integrated into an energy monitoring network.

Readout values in the display can be rotated by 180º, e.g. for overhead installation
Unit of Measure

Financing

Approve Payments

 N/A Finance with Approve Payments

Specifications

Parameters

 N/A 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

 N/A CFM ft/min g/s kg/h kg/min l/s lb/h lb/min m/s m³/h m³/min

Sensor

 N/A Thermal Mass Flow Sensor

Measured Medium

 N/A Air

Accuracy

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

Accuracy on Request

 N/A ± 1.0% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.)

Pressure

 N/A 0 to 232 psi0.15 to 29 psia

Pressure Accuracy

 N/A 1 %

Operating Temperature

 N/A -4 to 140 ºF

Operating Pressure

 N/A Up to 232 psi

Digital Output

 N/A Modbus-Remote Terminal Unit (RTU) RS 485 Interface

Optional Digital Output

 N/A Ethernet Interface M-Bus Power over Ethernet (PoE)

Analog Output for Cubic Feet Per Minute (CFM)

 N/A 4 to 20 mA

Pulse Output

 N/A 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) Supply Voltage

 N/A 18 to 36 V

Power Supply

 N/A 5 W

Burden

 N/A <500 Ω

Housing Material

 N/A Polycarbonate

Protection Rating

 N/A Ingress Protection (IP 65)

Material

 N/A Aluminum

Connection Thread of Measuring Sections

 N/A 1/2 to 2 in. National Pipe Thread (NPT) G 1/4 to G 2 in. British Standard Piping (BSP)

Mounting Position

 N/A Any

Measuring Range

Measuring Section

 N/A DN20

Thread Size

 N/A G 3/4 in.

Measuring Range Full Scales

 N/A 170 m³/h100 ft³/min

Dimension L

 N/A 135 mm

Dimension B

 N/A 55 mm

Dimension H1

 N/A 50 mm

Dimension H

 N/A 109.1 mm

Dimension A

 N/A 20 mm

Note for Measuring Range

 N/A Flow measuring ranges VA 525 (max version 185 m/s) for compressed air (ISO 1217:1000 mbar, 20 ºC)
Measuring ranges for other types of gas.

Display Shows 2 Values at the Same Time

Display Shows 2 Values at The Same Time

 N/A
  • Present flow in m³/h, CFM, SCFM
  • Total consumption (counter reading) in CF, l, lbs
  • Temperature measurement
  • Optional: Pressure measurement

Screw-In Thread

Screw-In Thread

 N/A Easy installation into the existing pipe due to integrated measuring section (suitable for 1/4", 1/2", 3/4", 1", 1 1/4", 1 1/2" or 2" lines)

Advantages at a Glance

Advantages at a Glance

 N/A
  • Compact, small design - for use in machines, behind maintenance unit on the end user
  • Optionally with conventional analog signals
  • (4 to 20 mA and pulse) or digital interfaces
  • Such as Modbus-RTU, Ethernet (also PoE), M-Bus
  • All interfaces are freely programmable via the display

With a Key Stroke

With a Key Stroke

 N/A
  • Reset counter reading
  • Select units
  • Parameterise interfaces