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Item # 0695 1524, VA 520 Flow Meter with R 1-1/2 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section

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Display shows 2 values at the same time:
  • Present flow in m³/h, CFM
  • Total consumption (counter reading) in CF
  • Temperature measurement
Readout values in the display can be rotated by 180º, e.g. for overhead installation.






Specifications

Parameters

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

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

Accuracy on Request

± 0.3% of Full Scale (F.S.)
± 1% of Measured Value (M.V.)

Operating Temperature

-22 to 176 ºF

Operating Temperature with Pressure Sensor

-25 to 349 ºF

Operating Pressure

-1 to 232 psi

Optional Pressure

Up to Nominal Pressure (PN) 40

Digital Output

(Modbus-RTU), Optional: Ethernet interface PoE)
M-Bus

RS 485 Interface

Analog Output for Cubic Feet per Minute (CFM)

4 to 20 mA

Pulse Output

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

Direct Current Voltage (VDC) Supply

18 to 36 V

Power Supply

5 W

Burden

< 500 Ω

Housing Material

Polycarbonate

Protection Rating

Ingress Protection (IP 65)

Measuring Section

Stainless Steel 1.4404
1-1/2
in

Mounting Position

Any

Low-Speed Air Flow (164 Feet (ft)/Sec (s))

195 L/min
115
cfm

Standard Air Flow (304 Feet (ft)/Sec (s))

365 m³/h
215
cfm

Maximum Air Flow (607 Feet (ft)/Sec (s))

730 m³/h
430
cfm

High-Speed Air Flow (735 Feet (ft)/Sec (s))

885 m³/h
520
cfm

Note for Air Flow

Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi

Low-Speed Argon (Ar) Flow (164 Feet (ft)/Sec (s))

305 L/min
180
cfm

Standard Argon (Ar) Flow (304 Feet (ft)/Sec (s))

570 m³/h
335
cfm

Maximum Argon (Ar) Flow (607 Feet (ft)/Sec (s))

1140 m³/h
670
cfm

High-Speed Argon (Ar) Flow (735 Feet (ft)/Sec (s))

1385 m³/h
815
cfm

Note for Argon (Ar) Flow

Setting to DIN 1343: 32 ºF, 14.7 psi

Low-Speed Carbon Dioxide (CO2) Flow (164 Feet (ft)/Sec (s))

195 L/min
115
cfm

Standard Carbon Dioxide (CO2) Flow (304 Feet (ft)/Sec (s))

360 m³/h
210
cfm

Maximum Carbon Dioxide (CO2) Flow (607 Feet (ft)/Sec (s))

720 m³/h
425
cfm

High-Speed Carbon Dioxide (CO2) Flow (735 Feet (ft)/Sec (s))

875 m³/h
515
cfm

Note for Carbon Dioxide (CO2) Flow

Setting to DIN 1343: 32 ºF, 14.7 psi

Low-Speed Nitrogen (N2) Flow (164 Feet (ft)/Sec (s))

295 L/min
175
cfm

Standard Nitrogen (N2) Flow (304 Feet (ft)/Sec (s))

335 m³/h
195
cfm

Maximum Nitrogen (N2) Flow (607 Feet (ft)/Sec (s))

670 m³/h
395
cfm

High-Speed Nitrogen (N2) Flow (735 Feet (ft)/Sec (s))

815 m³/h
475
cfm

Note for Nitrogen (N2) Flow

Setting to DIN 1343: 32 ºF, 14.7 psi

Low-Speed Oxygen (O2) Flow (164 Feet (ft)/Sec (s))

185 L/min
110
cfm

Standard Oxygen (O2) Flow (304 Feet (ft)/Sec (s))

345 m³/h
205
cfm

Maximum Oxygen (O2) Flow (607 Feet (ft)/Sec (s))

695 m³/h
410
cfm

High-Speed Oxygen (O2) Flow (735 Feet (ft)/Sec (s))

845 m³/h
495
cfm

Note for Oxygen (O2) Flow

Setting to DIN 1343: 32 ºF, 14.7 psi

Low-Speed Nitrous Oxide (N2O) Flow (164 Feet (ft)/Sec (s))

190 L/min
110
cfm

Standard Nitrous Oxide (N2O) Flow (304 Feet (ft)/Sec (s))

355 m³/h
210
cfm

Maximum Nitrous Oxide (N2O) Flow (607 Feet (ft)/Sec (s))

715 m³/h
420
cfm

High-Speed Nitrous Oxide (N2O) Flow (735 Feet (ft)/Sec (s))

865 m³/h
510
cfm

Note for Nitrous Oxide (N2O) Flow

Setting to DIN 1343: 32 ºF, 14.7 psi

Low-Speed Natural Gas (NG) Flow (164 Feet (ft)/Sec (s))

115 L/min
65
cfm

Standard Natural Gas (NG) Flow (304 Feet (ft)/Sec (s))

215 m³/h
125
cfm

Maximum Natural Gas (NG) Flow (607 Feet (ft)/Sec (s))

430 m³/h
250
cfm

High-Speed Natural Gas (NG) Flow (735 Feet (ft)/Sec (s))

520 m³/h
305
cfm

Note for Natural Gas (NG) Flow

Setting to DIN 1343: 32 ºF, 14.7 psi

Flange Outer Pipe Diameter

48.3 mm
1.9
in

Flange Inner Pipe Diameter

41.9 mm
1.65
in

Dimension L (Flange)

18.7 in

Note for Dimension L (Flange)

Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site.

Dimension L1 (Flange)

10.83 in

Dimension H (Flange)

9.4 in

Dimension H1 (Flange)

6.5 in

Diameter D (Flange)

150 mm

Diameter K (Flange)

110 mm

n x Diameter L (Flange)

4 x 18

Connection Thread

R 1-1/2 in.

Thread Outer Pipe Diameter

48.3 mm
1.90
in

Thread Inner Pipe Diameter

41.9 mm
1.65
in

Dimension L (Thread)

18.7 Inch
475
mm

Note for Dimension L (Thread)

Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site!

Dimension L1 (Thread)

10.8 in
275
mm

Dimension H (Thread)

7.3 in
186.9
mm

Dimension H1 (Thread)

6.5 in
165.7
mm

Dimension A (Thread)

0.9 in
25
mm

Connection to different Bus systems Options

There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU

With a Key Stroke

  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression

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.

Application-Technological Features

  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus

Additional Information

Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned.


 MORE IMAGES 

·  VA 520 Inline Flow Meters - 2

·  VA 520 Inline Flow Meters - 3


 DOWNLOADS 

Datasheet for VA 520 Inline Flow Meters
(PDF, 971KB)


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