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Electrical symbols
The following table describes the electrical symbols that may be displayed.
Symbol
Description
Indicates the On position of the main power switch.
Indicates the Off position of the main power switch.
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 the On/Off position of a push-push 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 a protective grounding terminal that must be connected to earth
ground before any other electrical connections are made to the instrument.
Indicates a terminal that can receive or supply alternating current or
voltage.
Indicates a terminal that can receive or supply alternating or direct current
or voltage.
Safety symbols
The following table describes the safety symbols that may be displayed. Each symbol
may appear by itself or in combination with text that explains the relevant hazard (see
“Safety labels on instruments”). 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
Caution, risk of danger. Consult the manual for further safety information.
Caution, risk of electrical shock.
Appendix E
Safety
Electrical symbols
E
72
Countess
™
II FL automated cell counter User Guide
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