Q-Eye PSC portable

portable Pulse-Doppler system 

For sewage treatment plants flow measurements are primarily installed for internal reasons, for example to control specific plant components with flow dependency or for controlling additives. International regulations for example the EU-Directive for handling municipal waste water require a continuous surveillance of waste water flow. Defective flow measurements on sewage-treatment plants can therefore influence their operation, but there can also be legal or environmental consequences. As it is often required to carry out the measurements only for a few weeks or months to obtain representative data, HydroVision is offering the mobile version of its Q-Eye PSC flowmeter.

 

HydroVision_Q-Eye PSC portable doppler flowmeter  

Specifications

  Sensor  

1 x velocity
1 x water level

  Frequency   1 MHz
  Range  

velocity – 6 to +6 m/s
water level 0,04 – 1 m
expandable via optional
hydrostatic sensor: 0 – 3,5 m
(other ranges available upon request)

  Accuracy  

v:   1% ± 0,0025 m/s
h:    1% ± 0,001 m

  Cable Length  

max. 80 m

  Display   4 lines, 20 characters
  Keyboard   4 keys
  Datalogger  

16 GB (internal)

  Communication   WLAN, GPRS, LAN (option)
  Outputs   max. 2 x 4-20mA, 2 x Relay, 1 x Pulse
  Inputs  

max. 2 x 4-20 mA

  Power Supply internal  

2 x rechargeable batteries

  Power Supply external   1 x rechargeable battery (option)
  Protection Class  

IP 68 

  Enclosure  

watertight, HPX resin

   

Downloads

    PDF-Logo brochure for Q-Eye PSC portable / (PDF) 
         

 

The flowmeter comes in an watertight case ready for use in harsh environments e.g. the use in sewer networks. The instrument can be read out without opening the case by activating WLAN transmission. No cable or software is needed to connect with a laptop, smartphone etc. All components of the flowmeter are battery powered. Optionally, a LAN connection is available for the Q-Eye PSC portable.

Event mode

In case of an event, the logging can be set automatically to 1 minute. Variable logging intervals assure maximum information about an exeptional event – while saving power and data capacity under normal conditions.

 

Ultrasonic air sensor

Q Eye PSC portable application flowmeter pipe waste water

The ultrasonic downlooking sensor provides non-contact level measurements. The sensor deflector plate guarantees minimal dead band and resists condensation. Redundant level measurements in combination with pressure sensor and / or the depth- and velocity sensor.

 

HydroVision_Q-Eye_PSC_portable_ultrasonic-air  

Specifications

  Sensor  

ultrasonic, downlooking

  Range   0 – 350 cm
  Accuracy   ± 5 mm
  Protection Class   IP68
  Material   Stainless Steel, PBT
  Dimensions   320 mm x 40 mm
  Output   4-20 mA

 

your choice for mobile applications

Q-Eye PSC portable is your choice for mobile applications. The long lifetime as well as the small and watertight housing make it the perfect tool for temporary operations. In addition to water level and flow, the signal quality, battery voltage and the calculated flow are also stored inside the data logger.

 

2017-flowmeter-QEYE-PSCportable-INSTALLATION-MANHOLE

 

Profiling Technology

By developing the PSC technology HydroVision managed to improve older Doppler methods like Contious Wave or Pulsed Wave Doppler. When compared against the simple cross-correlation method (determination of specific patterns in the flow) the PSC technology allows for a measurement in considerably more cells with a cell size of only a few milimeters and measures the velocity profile with a much higher resolution.

By means of a special correlation technology in signal processing, it is possible to measure flow velocity profiles very close to the sensor (low water level), as well as in big distances to the sensors (high water level). This makes the sensor suitable for both shallow waters and applications with higher water levels.

 

In contrast to the Spectral-Correlation method, the simple cross-correlation method does not measure velocity until several cm (5-6 cm) away from the sensor. In addition, the maximum distance is limited to as little as 1 m due to noise in the medium (weak patterns for higher distances). Also, in a sensor based on the PSC method, no complex and vulnerable electronic needs to be built in, making it possible to keep the sensor small and less influenced by temperature fluctuations (due to different extension coefficients of sensor housing and build-in electronic).