Item # 0696 0521 A3, VA 521 G 3/4 Inch (in) Thread Size Compact Inline Flowmeter On Compressed Air Systems, Inc.

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	Item # 0696 0521 A3, VA 521 G 3/4 Inch (in) Thread Size Compact Inline Flowmeter
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No inlet section necessary - integrated flow straightener - sensor unit removable

The newly developed VA 521 combines modern digital interfaces for connection to energy monitoring systems with a small, compact design. The VA 521 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

The sensor can be removed from the measuring section and cleaned.

VA 521 Compact Inline Flowmeters for Compressed Air and Other Types of Gas

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VA 521 Compact Inline Flowmeters for Compressed Air and Other Types of Gas - 2

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Financing · Specifications · Measuring Range · Display Shows 2 Values at the Same Time · Screw-In Thread · Advantages at a Glance · With a Key Stroke

Financing

Approve Payments		Finance with Approve Payments

Specifications

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

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

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.)

Operating Temperature		-22 to 176 ºF

Operating Temperature with Pressure Sensor		-25 to 349 ºF

Operating Pressure		Up to 232 psi

Optional Pressure		Up to 580 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) Supply Voltage		18 to 36 V

Power Supply		5 W

Burden		<500 Ω

Housing Material		Polycarbonate

Protection Rating		Ingress Protection (IP 65)

Material		Aluminum Stainless Steel 316L

Mounting Position		Any

Measuring Range

Measuring Section		DN20

Thread Size		G 3/4 in.

Measuring Range Full Scales		170 m³/h 100 ft³/min

Dimension L		135 mm

Dimension B		55 mm

Dimension H1		50 mm

Dimension H		109.65 mm

Dimension A1		26 mm

Dimension A		20 mm

Note for Measuring Range		Flow measuring ranges VA 521 (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		Present flow in, CFM, l/min/m³/min Total consumption (counter reading) in CF, l, kg Temperature measurement

Screw-In Thread

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

Advantages at a Glance

Compact, small design - for use in machines, behind maintenance unit on the end user
All interfaces are freely programmable via the display
Modbus-RTU output
4 to 20 mA analog output for present flow
Pulse output total flow (counter reading), electrically isolated. Optional: M-Bus, Ethernet interface or PoE
New: Integrated pressure sensor (optional)

With a Key Stroke

Reset counter reading
Select units
Parameterise interfaces

DOWNLOADS


		Datasheet for VA 521 Compact Inline Flowmeters for Compressed Air and Other Types of Gas (PDF, 481KB)

Item # 0696 0521 A3, VA 521 G 3/4 Inch (in) Thread Size Compact Inline Flowmeter

Approve Payments

Parameters

Units Adjustable Via Keys at Display

Sensor

Measured Medium

Gas Types are Adjustable Over CS Service Software or CS Data Logger

Accuracy

Accuracy on Request

Operating Temperature

Operating Temperature with Pressure Sensor

Operating Pressure

Optional Pressure

Digital Output

Optional Digital Output

Analog Output for Cubic Feet Per Minute (CFM)

Pulse Output

Direct Current (DC) Supply Voltage

Power Supply

Burden

Housing Material

Protection Rating

Material

Mounting Position

Measuring Section

Thread Size

Measuring Range Full Scales

Dimension L

Dimension B

Dimension H1

Dimension H

Dimension A1

Dimension A

Note for Measuring Range

Display Shows 2 Values at The Same Time

Screw-In Thread

Maintain Your Air Compressor