Q.Sonic - Ultrasonic gas flow meter

The Elster-Instromet multi-path Q.Sonic ultrasonic gas flow meter is ideal for the calibration measurement of natural gas. The patented measuring path arrangement, in conjunction with advanced ultrasonic sensors and digital signal processing allows high accuracy with excellent long time stability.

The flow profile analysis of the meter allows renouncing the usual adoption of a flow conditioner.


Technical data Size overview Downloads  
 


Q. Sonic - ultrasonic flow measurement with added value:

  • Single and double reflection technology combined to 3-path, 4-path or 5-path meters
  • Metrological identification of flow profile
  • High stability by digital signal processing (CMB)
  • Bi-directional use
  • Excellent repeatability
  • Excellent long-time stability
  • No moving parts, wear-free measurement
  • No pressure drop
  • Under pressure exchangeable ultrasonic transducers
  • Design in accordance with ISO standard CD17089
  • Design in accordance with AGA-9 report
  • Housing material steel A333/ A350, P355, special steel A316L, extra materials possible
  • Pressure ratings: ASME 150 / 300 / 600 / 900, higher pressure ratings respectively DIN-flanges (PN) on request
  • Approvals amongst others: PTB, NMI, GHOST, CMI
  • ATEX Ex II 2 G
  • Length of undisturbed upstream pipe:
               without flow conditioner 10D
               with      flow conditioner  5D


Size overview

 Diameter Qmin
[m³/h]		 Qmax
[m³/h]		 Vmax
[m/s]		 G-Size Max.
path number		 Length
Meter body
   4"     100 mm  13   980 33 G160 - G400 4 5D
   6"     150 mm  32  2.220 33 G250 - G1000 4 4D
   8"     200 mm  32  3.840 33 G400 - G1600 4 4D
 10"     250 mm  50  6.050 33 G650 - G2500 4 4D
 12"     300 mm  78  7.810 30 G1000 - G4000 5 3D
 16"     400 mm 120 12.320 30 G1600 - G6500 5 3D
 20"     500 mm 190 19.370 30 G2500 - G10000 5 3D
 24"     600 mm 280 28.010 30 G4000 - G16000 5 3D
 30"     750 mm 400 46.000 30 G6500 - G25000 5 3D

 

The specified flow ranges apply to the respective nominal size for a wall thicknesses according Schedule 40. Depending on the metrological approval (eg PTB), the required pressure range and the resulting inside diameter of the meter the flow ranges may differ from the tabular value.

Larger diameters until 64" respectively 1600 mm are possible.