Datasheet

123
v4.0 / Modification rights reserved
Measuring value
Flow
Measurand Volumetric flow at standard conditions acc. DIN 1343
P
0 = 1013.25 mbar (14.7 PSI); t0 = 0 °C (32°F)
Measuring range low (L1) high (H1)
standardized volumetric flow in air DN15 (1/2”): 0.32...63 Nm
3
/h 0.19...37.1 SCFM 0.32...126 Nm
3
/h 0.19...74.1 SCFM
DN20 (3/4”): 0.57...113 Nm
3
/h 0.34...66.5 SCFM 0.57...226 Nm
3
/h 0.34...133 SCFM
DN25 (1”): 0.90...176 Nm
3
/h 0.53...103.5 SCFM 0.90...352 Nm
3
/h 0.53...207.1 SCFM
DN32 (1 1/4”): 1.45...289 Nm
3
/h 0.85...170.0 SCFM 1.45...578 Nm
3
/h 0.85...340 SCFM
DN40 (1 1/2”): 2.26...452 Nm
3
/h 1.33...265.9 SCFM 2.26...904 Nm
3
/h 1.33...531.8 SCFM
DN50 (2”): 3.50...700 Nm
3
/h 2.06...411.8 SCFM 3.50...1400 Nm
3
/h 2.06...823.6 SCFM
DN65 (2 1/2”): 5.97...1400 Nm
3
/h 3.51...823.6 SCFM
DN80 (3”): 9.04...1400 Nm
3
/h 5.32...823.6 SCFM
standardized flow in air, CO2, ≤DN50 (2”): 0.5...100 Nm/s 100...19685 SFPM 0.5...200 Nm/s 100...39370 SFPM
nitrogen, argon DN65 (2 1/2”): 0.5...117 Nm/s 100...23031 SFPM
DN80 (3”): 0.5...77 Nm/s 100...15157 SFPM
helium ≤DN50 (2”): 0.5...100 Nm/s 100...19685 SFPM 0.5...120 Nm/s 100...23622 SFPM
DN65 (2 1/2”): 0.5...117 Nm/s 100...23031 SFPM
DN80
(3”): 0.5...77 Nm/s 100...15157 SFPM
oxygen ≤DN25 (1”): 0.5...100 Nm/s 100...19685 SFPM 0.5...200 Nm/s 100...39370 SFPM
Accuracy in air at 7bar (101.5 Psi) (abs) and 23°C (73°F)
1)
± (1.5% of measuring value + 0.5% of full scale)
Temperature coefficient ± (0.1% of measuring value/°C)
Pressure coefficient
2)
0.5% of measuring value / bar
Response time t
90 < 1 sec.
Sample rate 0.5 sec.
Temperature
Measuring range -20...80 °C (-4...176 °F)
Accuracy at 20°C (68°F) ± 0.7 °C (1.26 °F)
Outputs
Output signal and display ranges are freely scalable
Analogue output voltage 0 - 10 V max. 1 mA
current (3-wire) 0 - 20 mA and 4 - 20 mA R
L<500 Ohm
Switching output potential-free max. 44 VDC, 500 mA switching capacity
Pulse output Totalizer, pulse length: 0.02...2 sec.
Bus interface (optional) MODBUS RTU or M-BUS (Meter-Bus)
Digital interface USB (for configuration)
Input
Optional pressure compensation 4 - 20 mA (2-wire; 15 V) for pressure sensor
General
Supply voltage 18 - 30 V AC/DC
Current consumption max. 200 mA (with display)
Temperature range ambient temperature: -20...60 °C
(-4...140 °F)
medium temperature: -20...80 °C (-4...176 °F)
storage temperature: -20...60 °C (-4...140 °F)
Nominal pressure EE771 up to 16 bar (232 Psi)
EE772 up to 40 bar (580 Psi)
Humidity no condensation
Medium compressed air or none corrosive gases
Connection cable gland M16x1.5 (optional connector M12x1 8pol.)
Electromagnetic compatibility EN61326-1 EN61326-2-3
Industrial Environment
Material housing metal (AlSi3Cu)
probe stainless steel
sensor head plastic (PBT)
ball valve brass
MultiController Aluminium
Housing protection class IP65 / Nema 4
1) The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-times standard deviation). The accuracy was
culated in accordance with EA-4/02 and with regard to GUM (Guide to the Expression of Uncertainty in Measurement).
2) The flow meter is calibrated at 7 bar (abs) 101.5 Psi. If the working pressure is different from 7 bar (101.5 Psi) you can compensate the error by setting the actual
pressure with the configuration software.
Technische Daten
EE771/EE772