Luxinar SR 10 AOM, User Manual

Page: 55 / 75

Appendix B. Coolant requirements and additives
The following requirements concerning water quality and permitted additives must be complied with.
B.1. Coolant quality
Table 20 - Coolant quality
Description Value
Coolant type De-mineralised, deionised or distilled water with
corrosion inhibitor & anti-bacterial treatment
Conductivity <1000µS/cm
Total hardness <10ppm
pH value 7 – 8.5
Bacteria level <1000cfu/ml
The pH value, conductivity and dissolved solids levels can be measured with a portable meter and the
bacteria level can be checked with a test kit. For more information contact your local Luxinar Aftersales
office.
B.2. Suspended particle removal
To remove particulate contamination, an in-line filter with a pore size of 100µm must be fitted as close
as possible to the laser coolant inlet. The filter should be regularly checked for blockages and cleaned or
replaced where necessary. This is particularly important after bacterial growth has been detected and
anti-bacterial treatment applied.
B.3. Corrosion and anti-bacterial inhibitor
To prevent bacterial formation and corrosion of the cooling water circuit, Luxinar has tested and
approved a specialist water treatment kit which is manufactured by NALCO.
Three water treatment kits are available, dependant on the total volume of the cooling water circuit to
be used:
Circuit volume Reference
50–199L Order No.: 480-Luxinar 20.88
200–350L Order No.: 480-Luxinar 60.88
351–500L Order No.: 480-Luxinar 100.88
Order water treatment kits directly from NALCO at:
Nalco Deutschland GmbH,
Solmstraße 41
60486 Frankfurt am Main
Germany
Tel.: +49 69 7934-0
Customer service tel.: +49 7141 703 216
E-mail: custserv.germany@nalco.com
NALCO are equipped to ship kits worldwide.
• Expiration period
Two years
• Storage temperature
0–25°C
906-0227-00 REV 1 47 B. Coolant requirements and additives