High accuracy and reliability in natural gas measurement with the Q.Sonic Plus Ultrasonic Meter

Honeywell Elster uses a combination of technologies to deliver one reliable gas flow meter. The Q.Sonic Plus Ultrasonic Meter utilizes a patented six-path configuration of measuring paths in conjunction with sophisticated ultrasonic sensors and digital signal processing. As a result this meter delivers maximum accuracy, detailed flow profile recognition, superb noise immunity, and a wide range of pressure and gas velocities. In addition, the need for extensive commissioning, installation, and health checks is also eliminated.

The flow profile analysis of the Q.Sonic Plus allows the otherwise conventional use of a flow conditioner to be dispensed within many applications. Four double reflection paths (swirl paths) and two single reflection paths (axial paths) make up the configuration of measuring paths and ensure that the primary measurement will provide compliant fiscal measurements even in case of a failure of one path of each type (swirl/axial). The Q.Sonic Plus Ultrasonic Meter meets growing industry demands for greater asset integrity, cost efficiency, and risk reduction and is ideal for custody transfer applications. Rest assured that this ultrasonic meter from Honeywell Elster is a stable, long-term solution for safe and reliable natural gas transfer and measurement.


Q.Sonic Plus Ultrasonic Meter Features

  • 6-path reflective technology
  • Flow profile detection with swirl and asymmetry measurement
  • Internal temperature sensor
  • All-metal-encapsulated intrinsically safe transducers
  • No moving parts
  • No pressure drop
  • Bi-directional measurement
  • SonicExplorer PC software for configuration, diagnostics and health monitoring
  • OIML R137-1
  • AGA 9 compliant
  • MID approved

Q.Sonic Plus Ultrasonic Meter Specifications

Technical data
3″ to 36″— larger sizes available upon request (DN 80 to DN 900)
29 PSIG to 2175 PSIG – Minimum pressure depending on size and gas composition
-40°C to 85°C
0.05% – Relative to lab
Typical Uncertainty
0.1% (after calibration and linearization) – Relative to lab
Noise Suppression
Real-time CMB (Coded Multiple Burst)
24VDC, 10 to 20W
RS232/485, Ethernet, VDSL, USB
Body Materials
LTCS, stainless steel
Electronics Enclosure
Copper-free aluminum, stainless steel