Xylem YSI Alyza IQ NH4, Руководство по эксплуатации

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Alyza IQ NH4 Maintenance and cleaning
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5.9 Maintenance activities at the power supply box
WARNING
If the power supply is connected incorrectly, there may be
danger to life from electric shock.
Pay attention to the following points during installation:
 The power supply box may only be connected to the
power supply by a qualified electrician.
 The power supply box may only be connected to the
power supply when it is not carrying any voltage.
 The power supply must fulfill the specifications given
on the nameplate and in chapter 7 Technical data,
 155 .
 The power supply of the heat tracing must fulfill the
specifications given on the heat tracing (240 VAC or 120
VAC).
 To operate a heat tracing line, a fault current protection
switch (ground fault circuit interrupter) has to be in-
stalled.
 The power cable must meet the requirements according
to the technical data (see section 7.4 Electrical data,
 160).
For all work done with the housing open:
 If the Alyza IQ was already in operation:
Before opening the doors, start the maintenance routine at the
terminal.
 Note the environmental conditions (see section 3.3.1 Require-
ments of the measurement location,
 26).
 Open the outer housing door far enough so the arrestable brake-
stay (on the lower right side of the housing) catches.
 Open the inner housing door far enough so that it touches the
outer door. Tilt the angular sheet (at the inside of the outer door)
over the upper edge of the inside door.
1 Open the outer housing door far enough so the arrestable brake-stay
(on the lower right side of the housing) catches.
2 Open the inner housing door far enough so that it touches the outer
door. Tilt the angular sheet (at the inside of the outer door) over the
upper edge of the inside door.