ReVision®

fully integrated flow meter 

The ReVision flow meter is a fully integrated metering solution with up to 10 acoustic paths for liquid fluids. It is a new entry in the HydroVision family of high accuracy acoustic metering products. It increases your profitability with exceptional repeatability and linearity throughout the flow range. Due to the patented velocity profile compensation no flow straightener is needed and no on-site calibration is required. Even complex flow measuring tasks can now be realized.

 

modular flow transmitter  

Specifications

  Acoustic Paths  

1 – 10 (20 transducers)

arranged in max. 5 planes, crossed

  Flow   bi-directional
  Accuracy   up to < ± 0,15 % of measured value
  Range   0 to ± 20 m/s (0 to ± 66 ft./s)
  Repeatability   < ± 0,02 %
  Zero Stability  

< 1 mm/s

  Pressure Range   PN6, PN10, PN16
  Communication  

RS-485, MODBUS, WLAN, GSM/GPRS

Ethernet 10 / 100 Mbps

  Inputs:   max. 4 x 4-20 mA, 2 x digital
  Outputs:  

max. 4 x 4-20 mA

2 x Pulse, 4x Relay

  Power Supply  

85-260 VAC (48-60 Hz)

or 9-36 VDC

  Enclosure  

ABS, wall mounted

   

Downloads

    PDF-Logo brochure ReVision english / PDF
     
     
         

Transducers

Clamp-On

When combining the ReVision with clamp-on transducers, the flow measurement becomes non-intrusive from the outside of the pipe. The transducers are installed with little technical effort and without process interruption on the pipeline.

 

    2017-02-hydrovision-flowmeter-clampon-transducer-pipe-revision1

 

 

CO-L-0200-45

 

CO-S-1000-45

 

 

    TD-200/8   TD-1000/3
Frequency    200 kHz    1 MHz
         
Pipe Diameter    0,3 to 15 m   0,025 to 1m
         
Wall thickness  

up to 100 mm (steel, plastic, fiberglass)

  up to 20 mm
         
Beam width   8° (-3dB)  
         
Material   Stainless Steel, Polyamide   PEEK
         
Dimensions   270 x 115 x 100 mm   80 x 30 x 30 mm
         
Weight   2,4 kg   0,4 kg
         
 Installation  

from outside of the pipe – non intrusive

  from outside of the pipe – non intrusive

Fixing of the clamp-on transducers is done either with straps, magnetically or by bonding.

 

Transducers

Feedthrough

The transducer housings are separate from the transducers, allowing transducers to be changed without shutting down the process. Desinged to allow removal of the entire transducer for repair, replacement or cleaning without the need to dewater the pipe.

 

     HydroVision_flowmeter_feedthrough_sensor_ft_s_1000_45_web   HydroVision_Flowmeter_sensor_feedthhrough_ft_m_1000_70   2017-02-hydrovision-flowmeter-insertion-feedthrough-Durchflussmessung_Rohrleitung_HPP_ReVision

 

 

FT-S

 

FT-M

 

FT-L

Frequency   1 MHz   1 MHz   120 kHz / 1 MHz
             
Beam Width   5° (-3dB)   10° (-3dB)   10° (-3dB)
             
Configuration  

IEC41 / ASMEPTC 18

 

n.a.

 

IEC41 / ASMEPTC 18

             
Pipe Diameter   0,1 m to 2 m    0,1 m to 4 m    0,3 m to 10 m (120 kHZ)
0,3 m to  5 m (1 MHz)
             
Mounting   welding socket or thread    welding socket or thread     welding socket or thread  
             
Pressure Rate  

20 bar 

other ranges upon request

 

20 bar 

other ranges upon request

 

60 bar

other ranges upon request

             
Material   Stainless Steel   Stainless Steel, Brass   Stainless Steel
             
Cable   twisted pair with shield   twisted pair with shield   twisted pair with shield
             
Temperature Range   0° to 40°C   0° to 40°C   0° to 40°C 
             
Dimensions  

Ø 1″

Length 293 mm

 

 Ø  1 1/2“

Length 407 mm

 

 Ø  1 1/2“

Length 186 mm

             
Weight   1 kg   1,8 kg   1,8 kg
             
Installation  

incl. fixing device
ball valve and welding socket

 

When pipe can be dewatered for installation.

Designed to allow removal of the entire transducer for repair, replacement or cleaning without dewatering the pipe.

             

 

 

 

HydroVision_ReVision_flowmeter_pipe_application_web

ReVision® with 5 layers

 

 

Transducer Replacement

In the unlikely event that a transducer should fail, the ReVision can be programmed to automatically compensate for the loss in path information with a little reduced accuracy in addition to advising the operator that an alarm is present. The transducer housings are separate from the transducers, allowing the transducers to be changed without special tooling and without shutting down the process.

 

 

 

ReVision

Fully integrated metering solution with 2 acoustic paths

REVISION fully integrated ultrasonic multipath flow meter

 

 

Concept Innovation

Space constraints and/or appropriate application configurations lead to complex industrial pipe flows which contain elbows, tees and/or other disturbing and non-uniform elements. This leads to difficulties in installing flow meters at a recommended “optimum” location, which is defined by a minimum distance upstream or downstream of known disturbances like an elbow or pump where a fully developed velocity profile is present. Even with multiple flow sensors, there may still be a significant error which is known as the profile factor.

 

HydroVision_ReVision_flowmeter_pipe_application_space_constraints_web

flow meter after a 90° elbow

 

Prior knowledge of the profile factor can be used to correct the velocity measurements made by flow sensors to a true spatially averaged velocity. The ReVision acoustic system provides detailed information on the flow velocity profile and an accurate measurement of the flow rate can be achieved by rebuilding the whole flow velocity profile across the pipe using predetermined conduit configuration parameters and correction factors.

 

 

Asymetric and Swirls Compensation

Flow meters are also sensitive to velocity profiles where there is a large rotational component (swirl). Swirl is normally generated by two or more out of plane changes in flow direction (e.g. one elbow/tee that goes from vertical to horizontal followed by an elbow/tee that changes the direction of flow in the horizontal plane). Swirl is present to some extent in almost every application and can generate significant transverse velocity components plus it takes a long distance to dissipate. If the swirl is not centred, it can cause significant errors. Thanks to the predetermined conduit configuration parameters and correction factors, the flow meter measurement accuracy is kept when asymmetric profiles and swirls are present in the pipe.

 

 

Slide Revision fully integrated ultrasonic flowmeter

flow meter after two out of plane changes in flow direction