VA 525 – Compact Inline Flow Meter for Compressed Air and Nitrogen

The innovative VA 525 integrates modern digital interfaces for connection to an energy monitoring system, all within a compact design. It is particularly useful when numerous machines (compressed air consumers) need to be incorporated into an energy monitoring network.

Lower your energy costs and enhance your sustainability with the compact VA 525 sensor. This singular device enables you to monitor the consumption of individual machines and analyze leakage flows, maximizing your efficiency.

TECHNICAL DATA VA 525

Parameters:	m³/h, l/min (1000 mbar, 20 °C) in case of compressed air or 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
Sensor:	Thermal mass flow sensor
Measured medium:	Air
Measuring range:	See table above
Accuracy: (o. M. V. = of measured value) (o. F. S. = of full scale)	± 1.5% of m.v. ± 0.3 % of f.s. on request: ± 1% of m.v. ± 0.3% of f.s. or ± 6% of m.v. ± 0.5% of f.s.
Pressure measurement:	0…16 bar, accuracy: 1%, or 10…2000 mbar (abs)
Operating temperature:	-20…60 °C
Operating pressure:	Up to 16 bar
Digital output:	RS 485 interface, (Modbus-RTU), M-Bus (optional) Ethernet interface or PoE
Analogue output:	4…20 mA for m³/h or l/min
Pulse output:	1 pulse per m³ or per litre electrically isolated. Pulse weight 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 Ω
Housing:	Polycarbonate (IP 65)
Measuring section:	Aluminium
Connection thread of measuring sections:	G 1/4″ to G 2″ (BSP British Standard Piping) or 1/2″ to 2″ NPT thread
Mounting position:	any