Best in class Gas Mixer with the unique sonic nozzle technology

The Sonimix 2106 is a gas mixer mainly used to calibrate and linearize gas monitors and to generate specific gas mixtures .
The Sonimix 2106 is based on the principle of gas flow through sonic nozzles and is built according the ISO 6145/6 standard. The sonic nozzle principle makes it the most accurate and stable device on the market. It generates binary mixtures from 0 to 100% in fixed steps in a pure mechanical process without electronic regulation and without any influence from ambient pressure or temperature.
The touch-screen LCD interface provides simple and user-friendly management of all functions on the unit.
Optional Auto Diagnostic functions for quick check of the instrument performances (patented) is available.
Optional Nox converter tester.
Proven metrological performances – Optional ISO 17025 calibration reports will be delivered from our accredited laboratory. In this way the device can be easily linked with National Standards (NIST, METAS, UKA, etc)

Gas mixers

Product features

  • Fulfilment of ISO 14481 standard CEM (QUAL
    1 to QUAL 3)
  • ISO 6145/6 standards
  • Constant gas flow and pressure
  • No break-in times
  • Accuracy – (0.5% rel.)/ stability – (0.2% rel.)
  • Range – Up to 1024 programmable calibration points. Rare calibrations need.
  • Return on investment – Reduce gas cylinders costs, less components
  • Compatibility for corrosive gases (% range) with gold nozzles
  • Safe – Smart purge routine
  • Ergonomic with LCD display

Main applications


  • Quality control of gas monitors in the laboratory
  • Gas analysers and sensors production
  • To generate accurate gas standards and mixtures for R&D purpose
  • Automotive industry for engine test benches

Technical specifications

Model: SONIMIX 2106 2106-10  2106-16 2106-64  2106-128  2106-256  2106-1024 
General data
Dilution points 10 16 64 128 256 1024
Dilution principle Sonic nozzles (according ISO 6145-6) and high precision pressure regulators

Dilution gas line flow accuracy

< 0.25 % of set point
Source gas line flow accuracy < 0.25 %
Repeatability on flow < 0.1 %
Accuracy on concentration (rel) < 0.5% , achieved on the highest dilution ratio
Repeatability on concentration Better than 0.14% relative
Response time < 15 sec
Auto Diagnostic Diagnostic of pressure regulator, valve opening, nozzle functioning, drift
Factory calibration By laminar flow with uncertainty < 0.2% of reading
Warm up time No warm up time
Operating temperature 15°C – 40°C
Dimensions 19″ 3HE/84 TE , 500mm deep

portable casing in option

Net weight 15 – 20 Kg
Gas inlet requirements
Dilution gas Requires dry Air, Nitrogen or other gas, 2 ports
Dew point -40°C
Source gas compatible with corrosive gases up to 10% (if option installed)

up to 12 ports

 Pressure  3 ± 0.3 bar rel
 Fittings 3 x Swagelok 1/4″ (Air, Nitrogen, Span gas)optional up to 3 x 4 Swagelok 1/4″ per instrument
Gas outlet specifications
Flow 2.5 ± 0.25 L/min  , adjustable by by-pass valve in front of the instrument

other flow rate upon request

Pressure up to 1 bar rel (other pressure upon request)
Fittings 4 x Swagelok 1/4″ (Mixture, Waste, Purge)
RS 232 Standard
Ethernet TCP/IP Standard
USB Standard
WiFi Optional
Electrical data
Power supply voltage 230V/50-60Hz



Installed power (Max) 150W
NOx converter tester (option)
NO2 range 15 to 50 ppm / 30 to 100 ppm / 300 to 1000 ppm, all at 2.2 NL/min
Stabilization time Less than 1 min (once the device has warmed up)
Inlet fittings 2 x Swagelok (NO, air) 1/4″
Outlet fittings 2 x Swagelok (outlet, purge) 1/4″

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