Hach NA5600 sc Na+ Mantenimiento Y Solución De Problemas página 11

Figure 4 Power fuse replacement
3.8 Prepare the analyzer for a short-term shutdown
Prepare the analyzer for a short-term shutdown (2 days to 1 week) as follows:
Items supplied by user: Clamp scissors
1. Push menu, then select STOP ANALYZER.
Note: If START ANALYZER shows, the analyzer is already in standby mode.
2. Attach clamp scissors (metal or plastic) to the end of the KCl electrolyte tube to stop the flow of
KCl electrolyte to the reference electrode.
Note: When the analyzer is in standby mode or off, KCl electrolyte continues to flow out of the reference
electrode. KCl electrolyte will slowly fill the left chamber of the measurement cell and come out the top of the
left chamber.
3. Turn the shut-off valves on the sample line(s) to off.
4. If power must be removed from the analyzer, add reactivation solution to the middle chamber of
the measurement cell to prevent damage to the sodium electrode.
Note: After 4 hours in standby mode, the analyzer automatically adds reactivations solution to the middle
chamber of the measurement cell.
3.9 Prepare the analyzer for a long-term shutdown
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
personal protective equipment appropriate to the chemicals that are handled. Read the
safety data sheet from the supplier before bottles are filled or reagents are prepared. For
laboratory use only. Make the hazard information known in accordance with the local
regulations of the user.
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local,
regional and national regulations.
W A R N I N G
C A U T I O N
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