Gas Mixing, Delivery & Purge

Fideris gas mixing and gas blending modules automatically blend precise mixtures

Standard Features:

  • Mix and Match modules to deliver various flow rates and gases. Liquid delivery modules are also available
  • Use multiple gas mixing modules to create precicely controlled custom gas blends in real time
  • Mass flow control of flow rates up to 2500 SLPM per gas; combine multiple modules for expanded gas blending and mixing capabilities
  • All-digital control eliminates analog calibration requirements and inaccuracies
  • Ethernet Interface for simple configuration and expansion!
  • The output from multiple Gas Delivery Modules may be combined to provide dynamically controlled gas flow rates and compositions, including Stoichiometric control
  • System-wide control of all Fideris Test System components using FCPower Software, LabviewTM, or other programming language 
  • Integrated hardwired Run/Standby signal
  • Power Over Ethernet (PoE) for redundant power
  • Front panel LED status of Ethernet communications, inlet gas pressure, gas enabled, and power
  • Check valves for gas backflow prevention
  • Pressure regulator on inlet gas line to provide the highest degree of accuracy 

Typical Applications

  • Fuel Cell Testing
  • Simulated reformate blending
  • Controlled atmosphere composition control
  • Calibration gas generation
  • Gas Blending
  • Sensor Testing
  • Environmental Chamber atmosphere control
  • Catalyst Testing and Evaluation


Specifications of the Gas Delivery Module 

  • Gas Control: Mass flow control of gas(es)
  • Gas Inlet Valves: Solenoid or pneumatically operated bubble tight valve
  • Maximum Inlet Gas Pressure: 125 PSI (8.62 Bar)
  • Purge Valve (if purge subsystem included): Fail-safe, normally open, solenoid valve or pneumatically operated valve
  • Purge (if purge subsystem included): Fixed orifice or front panel needle valve. Purge MFM available

Electrical Requirements

  • Control Voltage: 26-50VDC
  • Communication: Ethernet (DHCP) 

Front Panel Controls and Displays

  • Purge Operation Mode Switch: On, Disable, Auto
  • Unit Status: LCD with backlight, flow setpoint, and actual flow
  • Communications: Tx, Rx, Ident LEDs
  • Inlet Pressure Status: LED illuminates above threshold pressure
  • Enabled / Standby Status: Enabled LED
  • Supply Pressure Gauge: 1 1/2" (optional)

Back Panel Connections

  • Power / Run/Standby: Molex 39660-1004
  • Communications: RJ45 (8P8C) Ethernet
  • Supply Connection: Swagelok bulkhead union or quick connect. 1/4 on 1U modules, 1/4 or 3/8 on 2U modules, 1/2 or 3/4 on 3U modules. VCR on UHP (Ultra-High Purity) models
  • Outlet Connection: Swagelok bulkhead union or quick connect. 1/4 on 1U modules, 1/4 or 3/8 on 2U modules, 1/2 or 3/4 on 3U modules. VCR on UHP models
  • Purge Connection (if purge subsystem included) Swagelok bulkhead union or quick connect. 1/4" on all modules

Physical Characteristics

  • Dimensions: 1U Modules: 1.75", 2U Modules: 3.5", 3U Modules: 5.25" 19" rackmount; 21" deep
  • System Weight: Dependent on configuration, approximately 15 lbs for 1U
  • Operating Environment: 40F to 100F; 85% RH
  • Cabinet Location: Indoors
  • Clearance for Operation: Back: 6", Sides: 0", Top: 0"
  • Optional UHP Module Materials and Finish: 316L (VAR if a welded component). Surface finish 10 micro-inch Ra


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Modules Available