Hach POLYMETRON 8544 Manuel D'utilisation page 14

Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
Make sure to use a clean air or water line for the pressure system. If necessary, install a dirt filter
before the valve inlet (≤ 400 µm).
1. Remove dirt in the pipelines, if applicable.
2. Clean and deburr all of the connecting pipe and tubing before installing.
Plumb the system—Air or water system
Do not use the body of the electrovalve as a lever arm or damage to the instrument can occur.
Connect the air or water line to the electrovalve. The arrow on the instrument shows the flow
direction. Complete the steps shown in
Note: If used, make sure that sealing material does not get into the instrument.
Figure 9 Air or water system plumbing
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D A N G E R
C A U T I O N
N O T I C E
Figure 9.