Hach 54400-18, Instrument Manual

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Page 4
Safety Precautions
54400_Safety.fm
Safety Precautions
Please read this entire manual before unpacking, setting up,
or operating this instrument. Pay particular attention to all danger and
caution statements. Failure to do so could result in serious injury to
the operator or damage the equipment.
To ensure the protection provided by this equipment is not impaired,
do not use or install this equipment in any manner other than that
which is specified in this manual.
If multiple hazards exist, this manual will use the signal word
(Danger, Caution, Note) corresponding to the greatest hazard.
Read all labels and tags attached to the instrument. Personal injury or
damage to the instrument could occur if not observed.
This symbol, if noted on the instrument, references
the instruction manual for operation and/or safety information.
Use of Hazard Information
Precautionary Labels
DANGER
Indicates a potentially or imminently hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or
moderate injury.
NOTE
Information that requires special emphasis.
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This symbol, if noted on the product, indicates the need
for protective eye wear.
Section 1.2 Instrument Environmental Considerations on page 11
Section 1.4 Plumbing Connections on page 14
Section 1.7 Optional Air Purge on page 20
Section 1.8 Electrical Connections on page 20
Section 1.8.1 Power Connections on page 21
Section 1.8.2 Wiring the Instrument on page 23
Section 1.8.3 Voltage Selection for Alternate Voltage Operation on page 24
Section 1.8.4 Alarm Connections on page 24
Section 2.2 Introduction on page 32
Section 2.7.5.1 Calibration on Known Standards on page 41
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