©Newport Corporation
MKS Spectra-Physics Confidential
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Chiller Fluid
The chiller fluid level should be appropriate for the model laser and must meet Spectra-
Physics specification requirements. Insufficient cooling could result in a decrease of
performance or damage to the laser system.
The Antifrogen L coolant solution (P/N 10734) is a concentrated liquid corrosion inhibitor
designed for use in closed loop cooling systems. It can be added in combination with
distilled water* in a ratio of 1:3 to a closed cooling system, resulting in a proper treatment
without dilution for up to 6 months. This solution is a complete inhibitor that protects
ferrous metals and copper alloys from corrosion. It is nitrite free and minimizes the
challenge of bacteria control (depending on environment and usage). Also, the
Antifrogen L coolant solution will ensure a correct coolant level readout of the chiller.
Fill the chiller reservoir with a mixture of Antifrogen L and distilled water, ratio 1:3. Do not
use deionized water, and do not place the chiller above the laser (should a leak develop,
dripping water may damage the laser). The chiller must always be on when the power
supply is on, even if the laser diodes are not on
* CAUTION: DO NOT USE DEIONIZED WATER
NOTE
: To restrict the growth of algae in the reservoir, it is recommended that the
reservoir cover be kept in place and that all circulation lines be opaque. This will
eliminate the entrance of light that is required for the growth of most common algae.
General Procedures
The chiller operation of the laser system should be checked once a week. The power
output and the mode-locking of the system should also be checked once a week by
verifying the output values.
If any of the output characteristics have changed, please call Spectra-Physics Technical
Support at
1-800-456-2552.