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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.
Unit of Measure

Specifications

Parameters

 N/A 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

 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 Gases

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

 N/A Air Argon CO2 Nitrogen Oxygen

Accuracy

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

Accuracy on Request

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

Operating Temperature

 N/A -22 to 176 ºF

Operating Temperature with Pressure Sensor

 N/A -25 to 349 ºF

Operating Pressure

 N/A -1 to 232 psi

Optional Pressure

 N/A Up to Nominal Pressure (PN) 40

Digital Output

 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface

Analog Output for Cubic Feet per Minute (CFM)

 N/A 4 to 20 mA

Pulse Output

 N/A 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

 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)

Measuring Section

 N/A Stainless Steel 1.4301 3/4 in

Mounting Position

 N/A Any

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

 N/A 45 L/min25 cfm

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

 N/A 85 m³/h50 cfm

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

 N/A 175 m³/h100 cfm

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

 N/A 215 m³/h125 cfm

Note for Air Flow

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

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

 N/A 75 L/min40 cfm

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

 N/A 135 m³/h80 cfm

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

 N/A 275 m³/h160 cfm

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

 N/A 335 m³/h195 cfm

Note for Argon (Ar) Flow

 N/A Setting to DIN 1343: 32 ºF, 14.7 psi

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

 N/A 45 L/min25 cfm

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

 N/A 85 m³/h50 cfm

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

 N/A 175 m³/h100 cfm

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

 N/A 210 m³/h125 cfm

Note for Carbon Dioxide (CO2) Flow

 N/A Setting to DIN 1343: 32 ºF, 14.7 psi

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

 N/A 70 L/min40 cfm

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

 N/A 80 m³/h45 cfm

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

 N/A 160 m³/h95 cfm

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

 N/A 195 m³/h115 cfm

Note for Nitrogen (N2) Flow

 N/A Setting to DIN 1343: 32 ºF, 14.7 psi

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

 N/A 45 L/min25 cfm

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

 N/A 80 m³/h45 cfm

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

 N/A 165 m³/h95 cfm

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

 N/A 205 m³/h120 cfm

Note for Oxygen (O2) Flow

 N/A Setting to DIN 1343: 32 ºF, 14.7 psi

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

 N/A 45 L/min25 cfm

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

 N/A 85 m³/h50 cfm

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

 N/A 170 m³/h100 cfm

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

 N/A 210 m³/h120 cfm

Note for Nitrous Oxide (N2O) Flow

 N/A Setting to DIN 1343: 32 ºF, 14.7 psi

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

 N/A 25 L/min15 cfm

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

 N/A 50 m³/h30 cfm

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

 N/A 105 m³/h60 cfm

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

 N/A 125 m³/h70 cfm

Note for Natural Gas (NG) Flow

 N/A Setting to DIN 1343: 32 ºF, 14.7 psi

Flange Outer Pipe Diameter

 N/A 26.9 mm1.06 in

Flange Inner Pipe Diameter

 N/A 21.7 mm0.85 in

Dimension L (Flange)

 N/A 18.7 in

Note for Dimension L (Flange)

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

Dimension L1 (Flange)

 N/A 10.83 in

Dimension H (Flange)

 N/A 8.5 in

Dimension H1 (Flange)

 N/A 6.5 in

Diameter D (Flange)

 N/A 105 mm

Diameter K (Flange)

 N/A 75 mm

n x Diameter L (Flange)

 N/A 4 x 14

Connection Thread

 N/A R 3/4 in.

Thread Outer Pipe Diameter

 N/A 26.9 mm1.06 in

Thread Inner Pipe Diameter

 N/A 21.7 mm0.85 in

Dimension L (Thread)

 N/A 18.7 Inch475 mm

Note for Dimension L (Thread)

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

Dimension L1 (Thread)

 N/A 10.8 in275 mm

Dimension H (Thread)

 N/A 7.0 in179.2 mm

Dimension H1 (Thread)

 N/A 6.5 in165.7 mm

Dimension A (Thread)

 N/A 0.7 in20 mm

Connection to different Bus systems Options

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

With a Key Stroke

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

Options

 N/A 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

 N/A
  • 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

 N/A 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.