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PEM Rack 19” Hydrogen generator

The HydroGen series HG 4U PRO is able to generate 2000 cc/min of Hydrogen with purity better than 99.99999% and pressure up to 16 bar (232 PSI). The HG 4U PRO includes an electrolytic cell with polymeric membrane (PEM) using distilled water.

The two-column PSA drying system with automatic regeneration ensures the maximum grade of hydrogen purity, and is completely maintenance-free. The HG 4U PRO is the ideal Hydrogen for all GC-FID detectors. The on-board CPU constantly control the operating parameters to guarantee full safety. The touch-screen LCD interface provides simple and user-friendly management of all functions on the unit.


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  • Quick installation
  • Easy use
  • Hydrogen flow rate 2000 cc/min
  • Pressure up to 16 bar (232 psi)
  • Hydrogen purity: 99.99999%
  • RS 485, RS 232 and USB as standard
  • LAN optional
  • Dryer with no maintenance
  • Reduced foot print: 19” rack 4U
  • High pressure GLS electronically controlled (patented)
  • Carrier gas for GC and GC-MS
  • THA
  • Gas sensing
  • Fuel cell
Model: HG 4U PRO800900100012002000
Basic parameters
Electrolysis unitPEM technology
drying systemPSA (pressure swing adsorption)
Hydrogen purity> 99.99999% *1
Outlet pressure12 bar (174 psi) / 16 bar (232 psi) (optional)
Hydrogen flow (maximum)800cc/min900cc/min1000cc/min1200cc/min2000cc/min
sizeStandard 19-inch cabinet type 4U high (48cm deep)
Net weight (without water)22kg25kg26kg
RS485Standard configuration
RS232Standard configuration
USBStandard configuration
Software function
parallel modeReady
Automatically add waterStandard configuration
Quality requirementsDeionized, ASTM II, < 0.1µS
Supply pressure (minimum; maximum)-0.2 bars (1.4 psi); 1 bar (14 psi)
Supply flow (min; max)0.2 l/min; 1.5 l/min
Internal water tank capacity1.1L
External water tank capacity5L or 10L or 24L (optional)
Power supply
Connection TypeIEC320-C13
power supply100-240Vac 50/60Hz ( 200-240Vac 50/60Hz for 4U PRO 2000 )
Power (maximum)450W560W960W
Fuse rating (5x20mm)6.3A 250Vac
Hydrogen export1/8″ Swagelok connector
Water (inlet, drain)Quick release push-fit connector
*1 refers to O2, dew point <-75℃


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