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Preface
Symbols on Instruments
xiii
Applied Biosystems 7500/7500 Fast Real-Time PCR System Getting Started Guide for Relative Standard Curve
and Comparative C
T
Experiments
Symbols on Instruments
Electrical
Symbols on
Instruments
The following table describes the electrical symbols that may be displayed on
Applied Biosystems instruments.
Safety Symbols
The following table describes the safety
s
ymbols that may be displayed on
Applied Biosystems instruments. Each symbol may appear by itself or in combination
with text that explains the relevant hazard (see “Safety Labels on Instruments” on
page xiv). These safety symbols may also appear next to DANGERS, WARNINGS, and
CAUTIONS that occur in the text of this and other product-support documents.
Symbol
Description
Symbol
Description
Indicates the
On
position of the
main power switch.
Indicates a terminal that may be
connected to the signal ground
reference of another instrument.
This is not a protected ground
terminal.
Indicates the
Off
position of the
main power switch.
Indicates a protective grounding
terminal that must be connected
to earth ground before any other
electrical connections are made
to the instrument.
Indicates a standby switch by
which the instrument is switched
on to the
Standby
condition.
Hazardous voltage may be
present if this switch is on
standby.
Indicates a terminal that can
receive or supply alternating
current or voltage.
Indicates the
On/Off
position of a
push-push main power switch.
Indicates a terminal that can
receive or supply alternating or
direct current or voltage.
Symbol
Description
Indicates that you should consult the manual for further information and to
proceed with appropriate caution.
Indicates the presence of an electrical shock hazard and to proceed with
appropriate caution.
Indicates the presence of a hot surface or other high-temperature hazard and
to proceed with appropriate caution.
Indicates the presence of a laser inside the instrument and to proceed with
appropriate caution.
Indicates the presence of moving parts and to proceed with appropriate
caution.