Flowatch

Current meter for measuring gas or liquid flows.

Flowatch

At a particularly competitive price, this device has been developed for use even in difficult conditions. Its various propellers offer measurement solutions in almost all cases, whether for measuring gas or liquid flows.

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EasyFlow

Flowmeter for professionnals

EasyFlow

The EasyFlow device is a flowmeter for professionals using the tracer dilution gauging method.

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Flowatch®

At a particularly competitive price, this device has been developed for use even in difficult conditions. Its various propellers offer measurement solutions in almost all cases, whether for measuring gas or liquid flows.

Logo Flowatch

Fields of application

Mesure de courant de rivière

River current measurement

Canaux d’irrigation

Irrigation channels

Ecoulements des eaux usées

Wastewater flows

Flux des marées

Tidal flow

Etudes hydrologiques

Hydrological studies

Canaux de ventilations

Ventilation channels

Climatisation et ventilation

Air conditioning and ventilation

Conduits de cheminées

Chimney ducts

Etudes aérologiques

Aerological studies

Flowatch® – Technical data

  • Speed ​​measurement in knots, mph, km/h, m/s, fps and cm/s/

  • Actual temperature

  • Perceived temperature

  • Maximum temperature

  • Average temperature

  • Minimum temperature

Speed ​​measurement – Standard size propeller
Units of measurement km/h, m/s, cm/s, mph, fps, knots and Beaufort
Resolution 0.1 for all units (except cm/s: 3 cm/s)
Maximum speed 150 km/h (except cm/s: 999 cm/s)
Diameter (gas) Ø 20mm
Through hole Ø 33mm
Range of measurement from 1 to 30 m/s
Minimum sensitivity < 3 km/h – < 1 m/s
Precision ± 2% FS
‘Off-axis’ error ± 30° / ± 3% FS
Operating temperature -50°C to +100°C
Speed ​​measurement – Small size propeller
Units of measurement km/h, m/s, cm/s, mph, fps, knots et Beaufort
Resolution 0.1 for all units (except cm/s: 3 cm/s)
Maximum speed 150 km/h (except cm/s: 999 cm/s)
Diameter (gas) Ø 12mm
Through hole Ø 18mm
Range of measurement from 1 to 30 m/s
Minimum sensitivity < 3 km/h – < 1 m/s
Precision ± 2% FS
‘Off-axis’ error ± 10° / ± 3% FS
Operating temperature -50°C to +100°C
Speed ​​measurement – Water propeller
Units of measurement km/h, m/s, cm/s, mph, fps, knots and Beaufort
Resolution 0.1 for all units (except cm/s: 3 cm/s)
Maximum speed 150 km/h (except cm/s: 999 cm/s)
Diameter (gas) Ø 60mm
Range of measurement from 0.1 to 10 m/s
Minimum sensitivity < 0.3 km/h – < 0.1 m/s
Precision ± 2% FS
‘Off-axis’ error ± 20° / ± 3% FS
Temperature measurement
Units of measurement °C, °F, perceived °C and perceived °F
Thermometer accuracy ± 0.2°C
Resolution ± 0.1°C
Functions measuring air, perceived, minimum, average and maximum temperature

Storage and travel case (kit 1)

Storage and travel bag (kit 2)

Telescopic aluminium probe, with 1.2-metre cable.

Compact probe to use Flowatch as a handheld anemometer

Sonde compacte pour utiliser Flowatch comme anémomètre à main

Gas propeller Ø 20 mm, through hole Ø 33 mm (included in the kit)

Hélice gaz Ø 20 mm, trou de passage Ø 33 mm

Gas propeller Ø 12 mm, through hole Ø 18 mm

Hélice gaz Ø 12 mm, trou de passage Ø 18 mm

Water propeller Ø 60 mm (included in the kit)/fusion_text]

Hélice eau Ø 60 mm

Probe with weighted propeller at the end of a 15-metre cable

Sonde avec hélice lestée au bout d’un câble de 15 mètres

Logo Easyflow
Logo Easyflow

Easyflow

The EasyFlow gauge is compact and light, and is ideal for measuring flow in torrents of water or wildly flowing streams. It is designed for professionals. A flow can be gauged using the tracer dilution method in a few minutes.

The EasyFlow gauge is very  ergonomic and perfectly waterproof, and is supplied with a conductivity probe with 10 metres cable. It is delivred in a shoulder bag and with 3 calibration doses, EasyViewer software, a quick manual and USB communication cable.

The software EasyViewer, delivered with the device, allows the download of the data on the PC, the visualization of the gauging curve and the eventual correction of the flow calculation. Very usefull to verify the quality of the gauging by viewing the curve.

Main functions:

  • Download measured data from EasyFlow
  • Visualization of the gauging curve and possibility to correct graphically the flow calculation
  • Addition of information about the gauging, such as the limnimetric height
  • Software in 3 languages: french, german and english

EasyFlow – Technical specifications

  • Flow in l/s

  • Temperature in °C

  • Salinity in mg/l

Salinity
Measuring range 0 – 3200 mg/l
Sensitivity 1 mg/l
Precision < 1%
Salt quantity (min – max) 1g – 100 kg
Temperature
Measuring range 0 – 40 °C
Precision ± 0,2 °C
Flow
Precision (Optimum mix) < 5 %
Measuring display range 0,1 l/s – 99’900 l/s
Various
Supply 3 alkaline batteries 1,5 V type AA, AM3, LR6
Autonomy ~ 100 hours under normal conditions
  • Conductivity probe

  • 1om cable

  • Shoulder bag

  • 3 calibration doses

  • EasyViewer Software

  • Aide-memoire

  • USB communication cable

The principle of the tracer dilution method consists to inject a quantity of tracer in the stream. Downstream, at a sufficient distance to obtain a good mix, we measure the concentration of this tracer in the water. The flow value is calculated by integration of this concentration in function of time.

With this method, the flow measurement of a stream can be done by only one person and needs less than one hour, contrary to measurements by current meters which are dull and require at least 2 or 3 hours.

Our flow measurement instrument EasyFlow uses this tracer dilution method with cooking salt as tracer. They are equipped with a probe which measures the water conductivity. The water conductivity is linearly proportional to the concentration of salt dissolved in water.

Cooking salt has the advantage to have a high degree of dilution in water, nonpolluting and very few absorbed by vegetation and materials present in the stream bed. It is an ideal tracer because it is low cost and easy to supply.