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Fri Jun 22 2018
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Greystone Duct Air Flow / Temperature Transducer: Model: ESF-35-2

By Veederline Pty. Ltd.

Veederline Pty. Ltd. - ESF is an air flow transducer with a broad application area. It can be used for control, surveillance,and regulation of the flow rate in fresh-air and ventilation systems, etc.

FEATURES of Air Flow Transducer Model: ESF-35-2:

  • Converts airspeed into a 4 – 20mA or a 0 – 10 VDC signal
  • Linear output signal
  • Made with corrosion resistant material
  • Fully electronic registration of airflow speed
  • AC or DC voltage supply
  • Compensates for changes of air temperature
  • Telescopic sensor facilitates installation
  • Temperature output signal 0 – 10 VDC

Fuse protected APPLICATION of Air Flow Transducer Model: ESF-35-2: The ESF-35-2 airflow transducer can be used in a wide range of applications such as:

  • Measurements of airflow speed via PLC/outstation/EMS
  • Regulation of airflow speed

Monitoring of airflow speed FUNCTION of Air Flow Transducer Model: ESF-35-2: The ESF-35-2 transducer registers the airflow speed according to a thermal principle based on the fact that the cooling action of air increases with airspeed. The action is measured and converted to a 4 – 20 mA or a 0 – 10 V signal corresponding to airflow speeds from 0 – 8 m/s (0 – 1575 ft/min) or 0 – 16 m/s (0 – 3150 ft/min).

INSTALLATION of Air Flow Transducer Model: ESF-35-2: The airflow transducer ESF-35-2 is installed in such a way that the current of air passes through the gap of the sensor head. Conductors to and from the transducer should be kept isolated from high-power conductors where powerful transient voltage spikes may appear.

TECHNICAL DATA of Air Flow Transducer Model: ESF-35-2:

  • Airflow speed: 0 – 16 m/s (3150 ft/min), (jumper selectable) 0 – 8 m/s (1575 ft/min)
  • Output signal (flow):  4 – 20 mA, 0 – 10 VDC
     
  • Output signal (temperature): 0 – 10 VDC
     
  • Temperature range : 0 – 50°C (32°F – 122°F)
     
  • Air temperature: -10°C – 60°C (14°F – 140°F)
     
  • Ambient temperature:  -20°C – 50°C (-4°F – 122°F)
     
  • AC voltage supply: 24 VAC (120mA)
     
  • DC voltage supply: 16 – 30 VDC (80mA)
     
  • Absolute accuracy: ±5%
     
  • Rise time: 20 sec
     
  • Time constant: 5 sec
     
  • Depth of insertion in channel: 50 – 200 mm (2 – 8 in.)
     
  • Dimensions (H x W x D): 80 x 80 x 55 mm (3.15 x 3.15 x 2.17 in.)