Hach-Lange HACH 5500 sc SiO2 Operations - Manual (Page 4)

This symbol indicates that a risk of electrical shock and/or
electrocution exists.
This symbol indicates that the marked item can be hot and should not
be touched without care.
This symbol indicates that a risk of fire is present.
This symbol identifies the presence of a strong corrosive or other
hazardous substance and a risk of chemical harm. Only individuals
qualified and trained to work with chemicals should handle chemicals
or perform maintenance on chemical delivery systems associated
with the equipment.
Note: For return for recycling, please contact the equipment producer or supplier
for instructions on how to return end-of-life equipment, producer-supplied
electrical accessories, and all auxiliary items for proper disposal.
Electrical equipment marked with this symbol may not be disposed of
in European public disposal systems after 12 August of 2005. In
conformity with European local and national regulations (EU Directive
2002/96/EC), European electrical equipment users must now return
old or end-of-life equipment to the Producer for disposal at no charge
to the user.
Product overview
D A N G E R
Chemical or biological hazards. If this instrument is used to monitor a
treatment process and/or chemical feed system for which there are
regulatory limits and monitoring requirements related to public health,
public safety, food or beverage manufacture or processing, it is the
responsibility of the user of this instrument to know and abide by any
applicable regulation and to have sufficient and appropriate
mechanisms in place for compliance with applicable regulations in the
event of malfunction of the instrument.
The analyzer measures silica concentration in power water and industrial
water. The chemical analysis uses the Heteropoly Blue (molybdenum)
Method, adapted from Standard Methods.
*
Power switch and SD card location
Figure 1 Power switch and SD card
1 Status indicator light 3 Analyzer ON/OFF indicator LED
2 Power switch (UP = ON) 4 SD card slot
* Standard Methods for the Examination of Water and Wastewater, 21st Edition, 2005, Centennial Edition, APHA, AWWA, WEF, pp 4–167, 4500-
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4 English