Ductus TT

Ultrasonic multipath flowmeter 

For pipes with a diameter of more than half a meter, ultrasonic flow meters have long established themselves as a reliable and convenient flow monitoring method. Measurements in several planes are a recommended method to determine the efficiency of the turbine without the need for calibration meeting the latest international standards. Fixed installed equipment form the basis for verifying the efficiency. A deterioration of efficiency can be detected right away and therefore corrections can be initiated at an early stage.

 

 

Ductus TT ultrasonic flow meter   

Specifications

  Acoustic Paths  

1 – 8

  Accuracy   ± 0,5% with 8 paths
  Range   ± 20 m/s
  Display   4 lines, 20 characters
  Datalogger  

internal, sampling interval user selectable

  Communication   RS-232, MODBUS, Ethernet, USB
  Inputs  

max. 8 x 4-20 mA

  Outputs  

max. 4 x 4-20 mA

2 x Relay, 2 x Pulse

  Power Supply   85-264 VAC (50-60 Hz) or 12 VDC
  Battery Backup  

integrated, 2 Ah

  Enclosure  

Steel, wall mounted

  Dimensions   400 x 500 x 160 mm (WxHxD)
 

Downloads

  PDF-Logo brochure for Hydro Power / PDF (2 MB) 

Transducers

Internal Mount & 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.

    Ductus TT internal mount ultrasonic flow meter    DUCTUS TT transducer Feedthrough-35 insertion type ultrasonic flowmeter    

 

 

Internal Mount

 

FT-L

   
Frequency   200 kHz   120 kHz    
             
Beam Width   18° (-3dB)   10° (-3dB)    
             
Configuration  

IEC41 / ASMEPTC 18

 

IEC41 / ASME PTC 18

   
             
Pipe Diameter   1,0 m to 15 m    0,3 m to 10 m     
             
Pipe Wall Thickness            
– welding socket   n.a.    up to 40 mm     
-thread   n.a.   up to 70 mm     
             
Pressure Rate  

60 bar 

other ranges upon request

 

60 bar 

other ranges upon request

   
             
Material    Stainless Steel / Polyamid   Stainless Steel    
             
Cable   twisted pair with shield   twisted pair with shield    
             
Temperature Range   -10° to 60°C   0° to 40°C    
             
Dimensions  

 320 x 100 x 70 mm

(LxWxH)

 

 Ø 1 1/2“

Length 186 mm

   
             
Installation   From the inside   

When pipe can be dewatered for installation.

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

             

4 planes crossed

according to IEC 41 / ASME PTC 18

Ductus TT multipath ultrasonic flow meter solution