Xylem YSI Alyza IQ NH4, Руководство по эксплуатации

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Maintenance and cleaning Alyza IQ NH4
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figure 5-19ChemBags removed from the supporting rod
10 Switch off all filtration pumps (STOP).
11 Switch off the 24 V power supply at the switch box.
If the filtration pumps have already been in operation, sample liquid
may escape when the tubes and liquid lines are unscrewed. Provide
a collecting container in such a case.
12 Unscrew the sample tubes from the overflow vessels.
13 Protect the sample tubes against loss of liquids and against the pene-
tration of dust and dirt (e.g. with rubber plugs or absorbent paper).
14 Keep some absorbent paper ready to absorb small quantities of leaked
liquids at the MultiPort valve.
15 Open the locking device of the MultiPort valve.
When the locking device is open, there is the risk of leaking chemicals.
16 Immediately place the absorbent paper onto the MultiPort valve.
17 Wait until the liquids have run back into the ChemBags.