For Safe Use Of Product - YOKOGAWA EJX Series User Manual

• Yokogawa assumes no responsibilities for this
product except as stated in the warranty.
• If the customer or any third party is harmed by the use
of this product, Yokogawa assumes no responsibility
for any such harm owing to any defects in the product
which were not predictable, or for any indirect
damages.
• When describing the model name like EJ
in this manual, it shows the applicability for both
EJX110A and EJA110E. The same representations
are used for the other models, too.
NOTE
For F Fieldbus and PROFIBUS PA protocol
OUNDATION
versions, please refer to manuals in the attached CD-
ROM, in addition to this manual.
• The following safety symbol marks are used in this
manual:
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
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
110
 
<1. Introduction>
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 fluid.
• 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 fluid may be toxic
or otherwise harmful.
• When removing the instrument from hazardous
processes, avoid contact with the fluid 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 confirm 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 5 min. after power is turned off, before opening
the covers.
• Do not open the cover in wet weather or humid
environment. If the cover is opened, stated enclosure
protection is not applicable.
2
IM 01C25A01-01E