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Detailed Comparison of SRS UGA Systems
UGA Hydrogen UGA UGA LT
Model UGA100 /3 UGA100 ULT100
Numbers UGA200 /3 UGA200 ULT200
UGA300 /3 UGA300 ULT300
Applications Up to 100% H2 Less than 25% H2 Less than 3% H2
Corrosive gases Corrosive gases No corrosive gases
Hydrocarbons and air Hydrocarbons and air Hydrocarbons and air
Turbo Pump High compression Medium compression Medium compression
ratio for hydrogen ratio for hydrogen ratio for hydrogen
Features Dual diaphragm pump system Single diaphragm pump
Low roughing pressure (<0.3 mbar) Higher roughing pressure
(2 mbar)
Ion gauge monitors sample chamber Ion gauge optional
Roughing line pressure monitor Roughing line pressure
monitor only
Sampling from several bar to 10-4 mbar Atmospheric sampling
only
Heated sample (100