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FJ4112 Portable area-velocity meter
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This is an area-velocity open channel meter suitable for any application containing bubbles
This is an area-velocity open channel meter suitable for any application containing bubbles or suspended solids. The velocity sensor detects liquid speed via a proprietary enhanced phase coherence processing sensor. At the same time, the integrated level transmitter provides its signal to combine with channel or pipe cross sectional area. The three calculations are continuously updated providing real time flow, level and total discharge.

Systems do not have to meet the standard Parshall or Venturi type power laws for accurate flow rate measurement, since it measures velocity in addition to height to calculate the flow rate.

Features a streamlined velocity sensor to eliminate fouling and reduce flow disturbances. Four isolated analog outputs, and two contact outputs for control or high/low alarms are included as standard options.

Other features include: zero offset or drift velocity measurement, RS232 and modem communications for remote stationing, and an integrated 250,000 point data logger. Can be utilized in such applications as irrigation channels, effluent monitoring, waste water treatment and industrial discharge measurement.
 
Features
  • Quick installation eliminates the need for flumes or weirs
  • Bi-directional flow measurement
  • Proprietary signal processing
  • Simple PC interface – Standard or custom channel cross sections
  • Internet connectivity – Automatic scheduled dial-out and delivery of flow or level data
  • Data logging for permanent records
  • Programmable switch outputs for level or flow rate alarms and control
  • Applications: Irrigation Channels, Effluent Monitoring, Waste Water Treatment, Industrial Discharge Measurement, River and stream flow measurement
 
SPECIFICATIONS

Dimensions (HxWxL)

10.6 x 9.9 x 7.1 in. (270 x 250 x 180 mm)
Weight 11.0 lbs. (5 kg.)
Environmental Rating NEMA-4X (IP65) high-impact plastic
Power Supply Built-in 12V 7Ah rechargeable battery for up to 3 months. External 12V and 24V power inputs for extended endurance
Measurement Display Large character LCD. Display programmable to sequence through: date, time, level, channel cross-section, flow velocity, flow rate, totalized flow, signal quality. Configurable for most engineering units
Level Interface Level conversion accuracy: better than 0.05% FS. Compatible with alternative level transmitters utilizing 4-20mA signals
Sensor Dimensions Sensor Construction 4.1 x 2 x 0.79 in. (LxWxH) (105 x 50 x 20 mm) High performance UPVC, cable exit and pressure sensor mounting at rear of unit
Measurement Range
Velocity 0.16 to 16.5 ft/sec (0.05 to 5.0 m/sec)
Level 0 to 12.0 ft. (0 to 3.7 m) or custom
Resolution
Velocity 0.003 ft/sec (0.001 m/sec)
Level 0.003 ft (0.001 m)
Velocity Accuracy ¡¾ 2% typical, zero offset, zero drift
Cable Length 33 ft. (10m) standard, 1650 ft (500m) maximum

CAT NO. MODEL DEscRIPTION AVAIL PRICE 
FJ4112   FLOCMP-0-0   Portable area-velocity meter for open channels and part-filled pipes   Yes   11,394,000¡¡
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DAVIS Á¾ÇÕ °èÃø±â - Çѱ¹´ë¸®Á¡ ÄÚ¸°½º°è±â(ÁÖ)
 
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