Preventive maintenance
94 811390 Operator Manual DynaMAX 550P/560P/575P Waterjet Pump
6. Put the TDS meter in the water sample up to the maximum immersion level (5 cm/2 inches). Tap
the meter gently to release air bubbles.
Wait approximately 20 seconds for the reading to become stable.
7. Test the pH. the optimal pH measurement is between 6.0 and 8.0.
8. Test the silica (Si0
2
) content. Compare the reading to the TDS table. The optimal range is
0.0025% to 0.015% (25 ppm to 150 ppm).
9. Test the water hardness. The result must be equal to or lower than 0.006% (60 ppm/3.5 grains).
10. Test the total dissolved solids (TDS) concentration.
11 . Rinse the meter in clean, deionized water or filtered water after use.
Test the total dissolved solids (TDS) concentration
The TDS measures the total concentration of dissolved substances in postfilter water. Dissolved
solids cause deposits that can cause damage to check valves, seals, orifices, and other
consumables. the optimal range is 0.0025% to 0.015% (25 ppm to 150 ppm).
1. Disengage the intensifier.
CAUTION
The meter is not waterproof. Do not submerge the unit in water.
%
0.002 0.004 0.006 0.008 0.01 0.012 .0014 0.016 0.018 0.02 0.022 0.024
ppm
20 40 60 80 100 120 140 160 180 200 220 240
Unsatisfactory Optimal Satisfactory Unsatisfactory
Lower than
0.0025%
(25 ppm)
0.0025% to 0.015%
(25ppm to 150ppm)
0.015% to 0.022%
(150 ppm to 220 ppm)
Higher than
0.022%
(220 ppm)
Use nonmetallic or
stainless-steel
fittings
—
A reverse osmosis system
can be used to remove
TDS
A reverse
osmosis
system should
be used to
remove TDS
CAUTION
The TDS meter is not waterproof. Do not submerge the meter in water.
Some TDS meters must be calibrated before use. For best results, calibrate the meter
at 25°C (77°F).
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