3D Systems DMP Flex 350, Руководство пользователя

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3D Systems, Inc. 93 p/n: 15-D100, rev. D
1
6.4 Every 3 Months
6.4.1 Replace Chiller Fluid
The chiller fluid needs to be replaced every 3 months to prevent
fluid evaporation which can cause a high concentration of
impurities.
1. Empty and clean the chiller tank.
2. Before filling the tank with new circulating fluid, the
customer must perform a quality check of the facility
water supply. The water should not be dirty or slimy, not
contain any foreign material and should comply with the
water quality standard shown in the table below or a 15%
aqueous solution of ethylene glycol. Use pH strips to check.
3. If the quality check is ok, turn the tank lid (1) counter-clockwise to open.
4. Add circulating fluid until the liquid level indicator reaches the “H” mark. The circulating fluid requires a mixture of tap water
and cooling fluid additives. Cooling fluid additives recommended by SMC are: Hexid A4, ControXid1642, Nalco CCL100, Cool
flow IGE, Dowcal 100 and opti. The correct mixture of tap water and cooling fluid additives must be according to
SMC guidelines (15%).
Note: The cooling fluid additives are to be supplied by the customer.
ITEM
STANDARD VALUE
CIRCULATING FLUID FACILITY WATER
Standards
pH (at 25°C) 6.0 to 8.0 6.5 to 8.2
Electric conductance (at 25°C) 1 μS/cm and higher 100 to 800 μS/cm
Chloride ions ppm 50 or less 200 or less
Sulfate ions ppm 50 or less 200 or less
Acid consumption ppm 50 or less 100 or less
Total hardness ppm 70 or less 200 or less
Calcium hardness ppm 50 or less 150 or less
Ionic silica ppm 30 or less 50 or less
For
reference
Iron ppm 0.3 or less 1.0 or less
Copper ppm 0.1 or less 0.3 or less
Sulfide ions ppm Not detected Not detected
Ammonium ions ppm 0.1 or less 1.0 or less
Residual chlorine ppm 0.3 or less 0.3 or less
Free carbon dioxide ppm 4.0 or less 4.0 or less
6.4.2 Clean Machine Exterior
Vacuum the exterior DMP Flex 350 system using a wet-separator vacuum cleaner.