AW-Lake HUB-40EX Hazardous Area Flow Sensor

AW-Lake HUB-40EX Hazardous Area Flow Sensor is a frequency output, pickup sensor certified for use in explosion proof areas. The sensor detects the rotation of an approved flow meter’s gears and emits a frequency signal proportional to the flow.

The output signal is a square wave pulse, which has a duty cycle of approximately 50%. MAG signal outputs are protected with a self-resetting fuse. This fuse has a 50 mA nominal trip point. When a trip occurs, turn off power to the sensor and remove output load to reset the fuse.

Ideal for any industry or flow measurement application where an explosion-proof sensor is required, such as in chemical injection, hydraulic fracturing, or industrial paint spray booths.

AW-Lake HUB-40EX Hazardous Area Flow Sensor Features:

  • Choose from Hazardous area certification options including: cCSAus or ATEX/IECEx
  • Square wave output signal has a duty cycle of approximately 50%.
  • For use with all AW-Lake EX flow meters.


  1. Up and Running in Minutes

    Easy thread-in installation. A quick setup procedure allows you to have the sensor working with just a few simple installation steps.

  2. Flexible Mounting

    Because of the integral swivel union, the HUB-40EX unit can be rotated 360° for easy wiring. Options available to fit any AW Gear Meter or Turbine Meter.

  3. Weather-Proof Enclosure

    NEMA 4X enclosure provides environmental protection from moisture and debris.

  4. Built-In Protection

    The signal outputs are protected by a self resetting fuse with a 50 mA nominal trip point.

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AW-Lake HUB-40EX Hazardous Area Flow Sensor Specification:

  • Supply Voltage: 10-24 VDC
  • Supply Current:
    • 8 mA @ 12 VDC
    • 12 mA @ 24 VDC
    • 65 mA Maximum
  • Sensor/Monitor Frequency Output: Flow dependent, 0.5 Hz minimum
  • Output Amplitude:
    • VHIGH = VSUPPLY – 0.7 Volts
    • VLOW = 0 Volts
  • Duty Signal: 50% ± 15%
  • Connections:
    • Terminal block, 1/2” female NPT conduit entrance
    • Cable with 1/2″ male NPT
  • Enclosure Rating: TYPE 4X
  • CSA Certification:
    • Class I, Div. I, Groups C, D
    • Class II, Div. I, Groups E, F, G
    • Class III
  • ATEX Certification: II 2 G, Ex d IIB+H2 T5 Gb, Ta = -40°C to +60°C
  • IECEX Certification: Ex d IIB+H2 T5 Gb Ta = -40°C to +60°C
  • Temperature Ratings:
    • -4 to 140°F (-20 to 60°C )
    • 185°F (85°C) maximum fluid temperature

Download Data Sheet: HUB-40EX Hazardous Area Flow Sensor


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