PEAK
Scientific Instruments Ltd
Zero Air Gas Generator
Instructions for use Manual
30
th
March 2005
ZA015 Issue 3
7
4
Air Connection
The inlet and outlet connections are 1/4" BSP female.
The Inlet air should conform to the following specifications:
Minimum Pressure
0.69 Barg / 10 psig
Maximum Pressure
8.62 Barg / 125 psig
Maximum Hydrocarbon Content
100 ppm
The inlet air should be oil free and pre-filtered to remove bulk moisture. Although not essential, an air
drier up-stream of the generator will ensure a long and trouble free life.
Note:- The platinum catalyst within the Zero Air Catalytic Chamber will become
poisoned if it comes into contact with any halogenated hydrocarbons, silicone
sprays, silicone greases, phosphorous compounds, lead components, high
sulphur vapours or other catalyst poisons.
The air supply should be connected to the generator inlet on the left side of the cabinet. The user's
application should be connected to the outlet on the right side of the cabinet. To avoid leakage/impurity
ingress, use PTFE tape on all fittings.
Slowly, turn on the air supply until the required pressure is attained. There is no physical method of
restricting the gas output from the generator. The user should therefore ensure that the application only
receives a maximum flow not exceeding the rating for the generator. Demand in excess of the rated
capacity of will result in higher levels of hydrocarbons in the delivered gas.
