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The EE771 is a thermal mass flow meter for compressed air and gases. Irrespective of pressure and temperature, the EE771 flow meter registers mass flow, volumetric flow or standard flow.

The flow meter can measure the consumption of compressed air, nitrogen, oxygen, CO2, helium, argon or other non-corrosive gases. The measurement ball valve permits easy installation and removal with only a short interruption of the flow.

EE771 flow meter employs the well proven E+E hot-film sensor element with high immunity to contamination, which leads to outstanding long-term stability and accuracy even under harsh operating conditions.

With wide measuring range from 0.5 to 200 Nm/s (100...39370 SFPM) (1:400) and fast response time, one and the same flow meter model can be employed throughout the entire gas supply system. It records accurately even the smallest flow which represent an essential prerequisite for calculating consumption costs or for finding leaks.

Every E+E flow meter undergoes a precise factory calibration procedure at a pressure of 7 bar (102 psi), the corresponding calibration certificate is included in the standard scope of supply.

The EE771 flow meter is available with an additional MODBUS RTU or M-BUS (Meter-Bus) interface.

Key Features

  • Measurement ball valve for rapid installation and removal with only a short flow interruption
  • Remote, interchangeable probe for easy mounting
  • Pipe diameter DN15 - DN50 (1/2" - 2") P
  • ressure range up to 16 bar (232 psi) PN16
  • Wide measuring range up to 200 Nm/s (39370 SFPM)
  • Bus interface for MODBUS RTU or M-BUS

Technical data

  • standardized volumetric flow, mass flow, standardised flow, temperature, consumption

    Measured values
  • 0.5 - 200 Nm/s (100…39370 SFPM)

    Measuring range
  • ±1.5 % of the measured value

    Accuracy
  • DN15 up to DN50 (1/2" - 2")

    Pipe diameter
  • 0-10 V, 0/4-20 mA, Pulse, Switch, Modbus RTU or M-Bus

    Outputs
  • 18 - 30 V AC/DC

    Supply

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Accessoires

  • HA010816

    Connecting Cable, 5 pins - 2m

    DESCRIPTION

    Connecting cable for remotemeasurement:

    - LOGPROBE20 mit HUMLOG20 E
    - EE771, EE772, EE776
    - EE060 PM

    • 5 pins
    • M12x1 plug-socket
    • shielded
    • cable length: 2m (6.6ft)

    Suitable for Products:

  • HA010817

    Connecting Cable, 5 pins - 5 m

    DESCRIPTION

    Connecting cable for remotemeasurement:

    - LOGPROBE20 mit HUMLOG20 E
    - EE771, EE772, EE776
    - EE060 PM

    • 5 pins
    • M12x1 plug-socket
    • shielded
    • cable length: 5m (16.4ft)

    Suitable for Products:

  • HA010818

    Connecting Cable, 5 pins - 10 m

    DESCRIPTION

    Connecting cable for remotemeasurement:

    - LOGPROBE20 mit HUMLOG20 E
    - EE771, EE772, EE776
    - EE060 PM

    • 5 pins
    • M12x1 plug-socket
    • shielded
    • cable length: 10m (32.8ft)

    Suitable for Products: