Agilent Technologies 4100 Site Preparation Manual page 47

Gas Requirements and Configurations
Multiple Agilent 4100 MP-AES and nitrogen generator installations
If an installation of several instruments is being planned it may be
worthwhile to reduce capital and maintenance costs for the
compressor(s) by using fewer compressors than instruments. This
saving must be weighed up against the redundancy achieved by
having every instrument independent so that no single failure
(except the electric power supply) disables all the instruments.
If multiple nitrogen generators and instruments are run off one
compressor the free air delivery (FAD) and receiver volume specified
should be multiplied by the number of instruments.
In very large installations larger nitrogen generator(s) may be used
so long as the nitrogen purity is as specified in this guide.
Agilent 4100 Microwave Plasma Atomic Emission Spectrometer Site Preparation Guide 47