Yokogawa EJA115 - Manual (Page 4)

<1. Introduction>
2
IM 01C22A01-01E
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices.
IMPORTANT
Indicates that operating the hardware or software in
this manner may damage it or lead to system failure.
NOTE
Draws attention to information essential for
understanding the operation and features.
Direct current
1.1 For Safe Use of Product
For the protection and safety of the operator and the
instrument or the system including the instrument, please
be sure to follow the instructions on safety described
in this manual when handling this instrument. In case
the instrument is handled in contradiction to these
instructions, Yokogawa does not guarantee safety.
Please give your attention to the followings.
(a) Installation
• The instrument must be installed by an expert
engineer or a skilled personnel. The procedures
described about INSTALLATION are not permitted for
operators.
• In case of high process temperature, care should
be taken not to burn yourself because the surface of
body and case reaches a high temperature.
• The instrument installed in the process is under
pressure. Never loosen the process connector bolts
to avoid the dangerous spouting of process fl uid.
• During draining condensate from the pressure
detector section, take appropriate care to avoid
contact with the skin, eyes or body, or inhalation of
vapors, if the accumulated process fl uid may be toxic
or otherwise harmful.
• When removing the instrument from hazardous
processes, avoid contact with the fl uid and the interior
of the meter.
• All installation shall comply with local installation
requirement and local electrical code.
(b) Wiring
• The instrument must be installed by an expert
engineer or a skilled personnel. The procedures
described about WIRING are not permitted for
operators.
• Please confi rm that voltages between the power
supply and the instrument before connecting the
power cables and that the cables are not powered
before connecting.
(c) Operation
• Wait 10 min. after power is turned off, before opening
the covers.
(d) Maintenance
• Please do not carry out except being written to
maintenance descriptions. When these procedures
are needed, please contact nearest YOKOGAWA
offi ce.
• Care should be taken to prevent the build up of drift,
dust or other material on the display glass and name
plate. In case of its maintenance, soft and dry cloth is
used.
(e) Explosion Protected Type Instrument
• Users of explosion proof instruments should refer fi rst
to section 2.4 (Installation of an Explosion Protected
Instrument) of this manual.
• The use of this instrument is restricted to those who
have received appropriate training in the device.
• Take care not to create sparks when accessing the
instrument or peripheral devices in a hazardous
location.
(f) Modifi cation
• Yokogawa will not be liable for malfunctions or
damage resulting from any modifi cation made to this
instrument by the customer.
1.2 Warranty
• The warranty shall cover the period noted on the
quotation presented to the purchaser at the time of
purchase. Problems occurred during the warranty
period shall basically be repaired free of charge.
• In case of problems, the customer should contact the
Yokogawa representative from which the instrument
was purchased, or the nearest Yokogawa offi ce.
• If a problem arises with this instrument, please inform
us of the nature of the problem and the circumstances
under which it developed, including the model
specifi cation and serial number. Any diagrams,
data and other information you can include in your
communication will also be helpful.