Hypertherm DynaMAX 550P, Руководство оператора

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Preventive maintenance
4
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 93
16. Monitor for leaks.
Test the water quality
Some TDS meters must be calibrated before use. For best results, calibrate the meter at 25°C
(77°F). Refer to the instructions supplied with the TDS meter.
If multiple readings are taken, turn
OFF
the TDS meter between readings.
Parts, tools, and materials
Do this task when the pump is off.
1. Remove a low-pressure water supply tube from the intensifier.
2. Turn
ON
the pump in cooling mode.
3. Take a sample of the water from the supply tube. Make sure that the water is clear and odorless.
4. Connect the low-pressure water supply tube to the intensifier.
5. Make sure that the water is clear and odorless.
Do this every 1,000 hours.
A TDS level that is lower than 0.0025% (25 ppm) can harm waterjet parts and requires
the use of nonmetallic or stainless steel fittings.
A TDS value of lower than 0.0005% (5 ppm) can damage stainless steel parts.
If a water line, a fitting, or a valve could be frozen, do not operate the pump. Thaw the
equipment until water moves easily through the water circuit.
Treat water with a TDS level that is higher than 0.015% (150 ppm) with reverse
osmosis.
TDS meter
Container for a water sample
Clean, deionized water or filtered water
Recommended materials
Bucket or pail
When a low-pressure fitting is disconnected, water could spray from the fitting.