Synrad Firestar V Series User Manual

getting started
20
SYNRAD OEM v40 Operator’s Manual Version 4
Connecting
Chiller preparation guidelines
■You must provide ttings that will adapt the laser’s 1/2" O.D. polyethylene cooling tubing to your
chiller’s Inlet and Outlet ports. These ttings can be either “quick disconnect” or compression type
ttings.
■Because Firestar’s cooling tubing is specied in inch sizes, the use of metric tubing ttings is discour-
aged unless you have installed the appropriate inch-to-metric tubing adaptors. The use of metric t-
tings on inch size tubing will lead to coolant leaks or may allow the pressurized tubing to blow o the
tting.
Coolants
SYNRAD recommends that the laser’s cooling uid contain at least 90% water (distilled or tap) by vol-
ume. In closed-loop systems, use a corrosion inhibitor/algaecide such as Optishield
®
Plus or equivalent.
Avoid glycol-based additives because they reduce the coolant’s heat capacity and high concentrations may
aect power stability. For SYNRAD lasers, the minimum coolant setpoint is 18 °C (64 °F) so glycol is not
necessary unless the chiller is subjected to freezing temperatures. In applications where biocides containing
chlorides are used, concentrations should not exceed 25 parts per million (PPM). Maintain a coolant pH
level above 7.0. We recommend the installation of a lter on the chiller’s return line, especially in areas
where water hardness is a problem. Firestar v40 lasers incorporate the following wetted materials in the
coolant path—aluminum, brass, copper, Delrin
®
, PBT, polyethylene, stainless steel, and Viton
®
.
Setting coolant temperature
Choosing the correct coolant temperature is important to the proper operation and longevity of your laser.
When coolant temperature is lower than the dew point (the temperature at which moisture condenses out
of the surrounding air), condensation forms inside the laser housing leading to failure of laser electronics as
well as damage to optical surfaces.
The greatest risk of condensation damage occurs when the laser is in a high heat/high humidity environ-
ment and the chiller’s coolant temperature is colder than the dew point of the surrounding air or when the
system is shut down, but coolant continues to ow through the laser for extended periods of time.
The chiller’s temperature setpoint must always be set above the dew point temperature. In cases where this
is not possible within the specied coolant temperature range of 18 °C–22 °C (64 °F–72 °F), then the fol-
lowing steps MUST be taken to reduce the risk of condensation damage.
■ Stop coolant ow when the laser is shut down.
■ Increase coolant ow by an additional 1.0 GPM (3.8 lpm). Do not exceed a coolant pressure of 60 PSI
(4.1 bar).
■ Air-condition the room or the enclosure containing the laser.
■ Install a dehumidier to reduce the humidity of the enclosure containing the laser.
Table 1-2 provides dew point temperatures for a range of air temperature and relative humidity values.
Remember that the laser’s coolant temperature must be set above the dew point temperatures shown in the
chart, but should not exceed 22 °C (72 °F).

Synrad Firestar V Series Specifications

General

Brand	Synrad
Model	Firestar V Series
Category	Measuring Instruments
Language	English