Warning: The magic method Merlin_Logger::__wakeup() must have public visibility in /var/www/in-system.dk/public_html/wp-content/themes/industrial/inc/admin/merlin/includes/class-merlin-logger.php on line 194
Low Flow Gas Mixer - In-System

Low Flow Gas Mixer

Information

A new generation of intelligent Low-Flow Gas mixer with Mass Flow Controllers and built-in display

  • Available as a 2-gas mixer and as a 3-gas mixer
  • Microprocessor control of gas mixture with monitoring and alarm in case of gas failure
  • Front panel programming for gas and flow selection with optional background and text display color
  • Flow between 0.1 to 1.2 liters/min. for each gas

Features

in-system Gas mixer is a new generation of low-flow gas mixer with a similarly newly developed Mass Flow Regulator, consisting of a directly controlled proportional valve and a thermal mass flow sensor.

in-system Gas mixer is a stand-alone device that does not require a connection to an external PC.

in-system Gas mixer delivered both as a 2-gas mixer and as a 3-gas mixer, where the selection of gases and flow is programmed directly on the built-in color display.

in-system Gas mixer is fully electronic and has exceptionally high mixing accuracy. A microprocessor controls the gas mixture with a direct display of gases and flows, while continuous monitoring of programmed alarm limits is performed simultaneously.

in-system Mass Flow Controller, the vital part of our gas mixers, is also available as a separate regulator with a directly acting proportional valve and a thermal mass flow sensor and an OEM product with own text and company logo. The Mass Flow Controller is supplied with 24 VDC, and the proportional valve is controlled with a frequency of 1500 Hz.

  • 115/230 VAC supply
  • Metal cabinet
  • Extremely high mixing accuracy of flow between 0.1 to 1.2 liters/min. for each gas
  • Stand-alone gas mixer that does not require connection to an external PC. Built-in 4-line display for text and data
  • Analogue optional inputs for each gas (0 / 4-20 mA)
  • Potential-free relays for each gas with optional alarm limits

Specifications

Technical data:

 

Supply:

  • 110-230 VAC supply via separate adapter with EU plug

 

Metal cabinet:

  • Dimensions: HxWxD – 60x190x160 mm
  • Weight: 1.1 kg

 

Flow:

  • Flow between 0.1 to 1.2 liters / min. for each gas
  • Mixing accuracy: <0.5%
  • Automatic pressure and temperature compensation
  • Gas inlet temperature: 10-50°C
  • Ambient temperature: 10-50°C

 

Programming:

  • Touch programming on the front panel

 

Display:

  • Color display with 4-lines for optional text and data

 

Outputs:

  • Potential-free relays for optional alarm limits for each gas
  • Analogue optional signal outputs (0/4-20 mA) for each gas

Example of application:

  • Processes in industry or laboratories where an accurate and constant mixture of 2 or 3 gases is wanted
  • In Process control where dosing with a constant mixing ratio and flow is wanted to be regulated and monitored
  • Laboratory measurements where extreme mixing conditions are wanted
  • All kinds of gas mixture in the chemical, metallurgical and medical industry, research and development

Documentation

Datasheet

Click to download

Download

Block chart

Click to download

Download

Mass flow correction table

Click to download

Download

PWM - Pulse Width Modulation

Click to download

Download

Table - Data and info for gases

Click to download

Download

Product support - FAQ

The gas mixer is built with a Mass Flow Controller for each gas, consisting of a proportionally controlled solenoid valve, which, together with a mass flow sensor, ensures the pre-programmed flow for the selected gas.

Yes, the supplied supply can be used directly for 115 VAC.

The maximum inlet pressure for each gas is 5 bar.

The lowest inlet pressure for each gas is 1 bar.

Yes, the Mass Flow Controller ensures correct flow if the inlet pressure is between 1 and 5 bar.

Yes, the gas mixer is prepared for flammable gases, but it is the user’s responsibility to comply with local regulations for handling flammable gases.

Yes, a 3-gas mixer can be used directly as a 2-gas mixer. Programming is done on display.

Yes, Mass Flow Controller can be purchased separately. Supplied with 24 VDC and PMV controlled with 1500 Hz.

Pulse Width Modulation is a digital form of modulation in which an electrical voltage alternates between two values in a square pulse modulated at a constant frequency whose width varies. The relationship between pulse and pause is called the duty cycle. The frequency in all in-system products is 1500 Hz.

Duty cycle describes the proportion of “on” time in the control process, a low operating cycle corresponds to low power because the power is off most of the time.Operating cycle is expressed as a percentage, 100% is fully on.When a digital signal is on half the time and off the other half of the time, the digital signal has a 50% duty cycle and looks like a “square” wave.

See it illustrated in three scenarios in the document PWM.

Yes, display text is completely optional. Letters, numbers and symbols can be used.

Yes, the gas mixer can be delivered with desired/recommended fittings, see order template.

Inquiry about Low Flow Gas Mixer

Please fill out the form below and we will get back to you – We are always ready to help.