2 IM 4H3B1-01E
SAFETY PRECAUTIONS
• The µR1800 is a Component Type instrument and should be mounted on a panel.
• The µR1800(except portable type) is a Safety ClassI instrument (provided with
terminal for protective earthing).
• The µR1800(except portable type) is an EN55011(EMI standard) Group 1, Class A
instrument.
• This instrument complies with Inatallation Category ll.
The following general safety precautions must be observed during all phases of
operation, service, and repair of this instrument. Failure to comply with these
precautions or with specific WARNINGS given elsewhere in this manual violates safety
standards of design, manufacture, and intended use of the instrument.
YOKOGAWA Electric Corporation assumes no liability for the customer’s failure to
comply with these requirements.
General definitions of safety symbols used on equipment and in manuals
Explanation: To avoid injury, death of personnel or damage to the instrument, the
operator must refer to an explanation in the instruction manual.
Protective grounding terminal: To protect against electrical shock in case of a fault.
This symbol indicates that the terminal must be connected to ground before operation of
equipment.
High temperature: To avoid injury caused by hot surface, don't touch the heatsink.
A WARNING sign denotes a hazard. It calls attention to a procedure, practice,
condition or the like, which, if not correctly performed or adhered to, could result
in injury or death of personnel.
A CAUTION sign denotes a hazard. It calls attention to a procedure, practice,
condition or the like, which, if not correctly performed or adhered to, could result
in damage to or destruction of part of the product.
CAUTION
WARNING
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