96 HyPrecision Predictive waterjet pump Operator Manual 810120
5 – Preventive maintenance
Preventive maintenance
5. 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.
6. Compare the reading to the TDS table.The optimal range is 0.005% to 0.015% (50 ppm to 150 ppm).
7. Rinse the meter in clean, deionized water or filtered water after use.
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 0.005%
(50 ppm)
0.005% to 0.015%
(50 ppm to 150 ppm)
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
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