PART 1
INTRODUCTION
1.1 Safety and EMC Considerations
This device is marked with the international caution symbol. It is
important to read this manual before installing or commissioning this
device as it contains important information relating to Safety and EMC
(Electromagnetic Compatibility).
This instrument is a panel mount device protected in accordance with EN
61010-1:2001, electrical safety requirements for electrical equipment for
measurement, control and laboratory. Installation of this instrument should
be done by qualified personnel. In order to ensure safe operation, the
following instructions should be followed.
This instrument has no power-on switch. An external switch or circuit-breaker
shall be included in the building installation as a disconnecting device. It
shall be marked to indicate this function, and it shall be in close proximity to
the equipment within easy reach of the operator. The switch or circuit-
breaker shall meet the relevant requirements of IEC 947–1 and IEC 947-3
(International Electrotechnical Commission). The switch shall not be
incorporated in the main supply cord.
Furthermore, to provide protection against
excessive energy
being drawn
from the main supply in case of a fault in the equipment, an
overcurrent
protection device shall be installed.
•
Do not exceed voltage rating on the label located on the top of the
instrument housing.
•
Always disconnect power before changing signal and power
connections.
•
Do not use this instrument on a work bench without its case for safety
reasons.
•
Do not operate this instrument in flammable or explosive atmospheres.
•
Do not expose this instrument to rain or moisture.
•
Unit mounting should allow for adequate ventilation to ensure instrument
does not exceed operating temperature rating.
•
Use electrical wires with adequate size to handle mechanical strain and
power requirements. Install without exposing bare wire outside the
connector to minimize electrical shock hazards.
EMC Considerations
•
Whenever EMC is an issue, always use shielded cables.
•
Never run signal and power wires in the same conduit.
•
Use signal wire connections with twisted-pair cables.
•
Install Ferrite Bead(s) on signal wires close to the instrument if EMC
problems persist.
Failure to follow all instructions and warnings may result in injury!
2
Summary of Contents for C4EIT
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