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HG PRO 4000

PEM Hydrogen Generator

The HydroGen series HG PRO 4000 is able to generate up to 4000 cc/min of Hydrogen with purity better than 99.99999% and pressure up to 16 bar (232 psi). The HG PRO includes a new long life multilayer electrolytic cell with polymeric membrane (PEM) using distilled water. No acid or alkaline solutions are used.

The two-column PSA drying system with automatic regeneration ensures the maximum grade of hydrogen purity, and is completely maintenance-free. The HG PRO 4000 is the ideal Hydrogen for all GC-FID detectors. The on-board CPU constantly controls 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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  • New long life multilayer PEM cell
  • Easy use
  • High flow rate up to 4000 cc/min
  • High pressure up to 16 bar (232 psi)
  • RS 232/485 and USB standard
  • Auto refill standard
  • High purity: 99.99999%
  • Dryer with no maintenance
  • Safety routine and self monitoring
  • High pressure GLS electronically controlled (patented)
  • Carrier gas for GC and GS-MS
  • THA
  • Gas sensing
  • Fuel cell
  • ICP-MS collision gas
Model: HG PRO40004000 LN
General Data
Electrolytic cellPEM technology
Drying systemPSA (Pressure Swing Adsorption) / TSA (Thermal Swing Adsorption)
H2 purity>99.99999%*1 Dew-point -75°C>99.99999%*1 Dew-point -80 °C
Outlet pressure12 bars (174 psi) / 16 bars (232 psi) (optional)
H2 flow-rate cc/min (Max)4000
Dimensions (W x D x H)44.5 x 66 x 66.5 cm
Net weight (no water in tank)52 kg53 kg
N2 content< 3 ppm< 1ppm
RS-232 / USB / RS-485Standard
Digital I/OStandard
Software Functions
Parallel modeReady on board
Automatic tank refillStandard
Fill Hydride canister functionStandard
Quality RequiredDeionized, ASTM II, <0.1uS
Supply pressure (max)0 bar (0 psi), 0.5 bar (7.25 psi)
 Flow rate (max)0.25 l/h
Internal tank capacity20 L
Electrical Data
Type of connectionIEC 320-C14
Power supply voltage240 Vac (±10%) 50/60 Hz
Nominal power (Max)1450W
Fuse rating (5x20mm)6.3A (250 Vac – T)
Hydrogen outlet1/8” compression fitting
WaterQuick release push-in fitting
H2 vent1/8” BSPP female thread (quick fitting for tube 6mm)
O2 vent1/4” BSPP female thread (quick fitting for tube 10mm)
Operating Storage
Working Temperature5-40°C (41-104°F)*2
Storage Temperature1-50°C (34-122°F)
Humidity (max, non condensing)70%
Noise< 50dB(A)
IP ratingIP20
Pollution degree rating2 (with no aromatic compounds)
Altitude< 2000m
*1 referred to O2, dew point atmospheric Dew-point (ADP)
*2 with temperature > 35°C (> 95°F) the H2 purity could be less


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