Hypertherm Echion - Test the water quality

Preventive maintenance
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Echion Operator Manual 810770 83
Preventive maintenance
Test the water quality
Parts, tools, and materials
Do this task when the pump is not operating.
1. Take a sample from the Waste water out hose. If you cannot access the hose, take a sample
from the boost pump or from the hose going to the inlet water solenoid (for pumps without
a boost pump).
2. Make sure that the water is clear and odorless.
3. Test the pH. The optimal pH measurement is between6.0 and8.0.
4. Test the silica(SiO
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) content. The silica content must be lower than0.0015%(15 parts per
million[ppm]).
5. Test the water hardness. The result must be equal to or lower
than0.006%(60ppm/3.5grains per gallon).
6. Test the total dissolved solids (TDS) concentration. The optimal range is0.005%
to0.015%(50ppm to150ppm). Refer to Test the total dissolved solids (TDS) level on
page 81.
TDS meter
Container for a water sample
Clean, deionized water or filtered water
pH tester
Silica test kit
Water hardness (calcium carbonate) test kit
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