Laser Pre-mix Gas Specification
10 LC3015 Theta User Installation Guide - October, 2003
Laser gas quality is critical to the performance and reliability of the laser. Based on our experi
-
ence, we recommend AGA’s LaserMix 21 or BOC’s LASERSHIELD F. If you choose a supplier
other than AGA or BOC, use the following laser gas specification.
NOTE: If the gas is not mixed to the required specifications, the laser will not run correctly.
The laser uses a mix of carbon dioxide (CO
2
), Nitrogen (N
2
) and Helium (He) at 28 psi. Give
this specification to your gas supplier.
Laser Oscillator Gas Mixture
Gas CO
2
N
2
He
Pre-mix ratios 5% ±0.25% 55% ±2.75% 40% ±2.0%
4.75% - 5.25% 52.25% - 57.75% 38% - 42%
Purity 99.99%
Moisture 5 ppm total maximum
Hydrocarbon C
n
H
m
1 ppm total maximum
We recommend that you purchase gas that is certified
to meet the specifications provided.
7
7 This means that any impurities from the bottle are included in the certified purity.7 This means that any impurities from the bottle are included in the certified purity.
