Gas Delivery with Adjustable Purge Rate and Purge Readback

Front Panel
Front Panel
Back Panel
Back Panel

  • Provides mass flow control of one gas and a fail-safe purge system with needle valve adjustable purge rate and mass flow meter purge rate readback
  • Flow rates up to 2500 SLPM per gas
  • 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, Labview, 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
  • Pressure regulator on inlet gas lines to provide the highest degree of accuracy, and check valves for gas backflow prevention



Specifications of the Gas Delivery Module with Adjustable Purge Rate with Purge Readback
Mass flow control of one gas plus fail-safe operation of purge gas
Solenoid or pneumatically operated bubble tight valve
125 PSI (8.62 Bar)
All digitally controlled brands available including Alicat, Bronkhorst, Brooks, MKS, or Sierra
Fail-safe, normally open, solenoid valve or pneumatically operated valve
Flow rate controlled by front panel needle valve (optional readback mass flow meter)
Electrical Requirements
Ethernet (DHCP)
Front Panel Controls and Displays
On, Disable, Auto
Manually adjustable valve
LCD with backlight, flow setpoint, and actual flow
Tx, Rx, Ident LEDs
LED illuminates above threshold pressure
Enabled LED
1 1/2" (optional)
Back Panel Connections
Molex 39660-1004
RJ45 (8P8C) Ethernet
Swagelok bulkhead union or optional 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 optional UHP (Ultra-High Purity) models
Swagelok bulkhead union or optional 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 optional UHP models
1/4" Swagelok bulkhead union or quick connect
Physical Characteristics
1U Modules: 1.75", 2U Modules: 3.5", 3U Modules: 5.25" 19" rackmount; 21" deep
Dependent on configuration,approximately 15 lbs for 1U
40F to 100F; 85% RH
Back: 6", Sides: 0", Top: 0"

316L (VAR if a welded component). Surface finish 10 micro-inch Ra

Each module provides a turnkey solution for mass flow control based gas delivery to the fuel cell or other device under test. The module includes a fail-safe purge subsystem, a bubble-tight inlet valve, an upstream pressure regulator, and an inlet pressure switch to notify the system when gas is present. The mass flow controller is followed with a reverse flow protection check-valve to prevent contaminants from migrating upstream to the MFC. Front panel display of status provides for quick verification and easy diagnostics. The module comes in a standard rack mount size for simple integration into an existing test stand or as part of a custom configured Fideris Test Stand. Most common uses include gas delivery for fuel cell testing and for environmental chambers.