Yokogawa EJX440A - Manual (Page 5)

IM 01C25T03-01E 1-2
1. INTRODUCTION
1.1 Safe Use of This Product
For the safety of the operator and to protect the
instrument and the system, please be sure to follow this
manual’s safety instructions when handling this
instrument. If these instructions are not heeded, the
protection provided by this instrument may be im-
paired. In this case, Yokogawa cannot guarantee that
the instrument can be safely operated. Please pay
special attention to the following points:
(a) Installation
• This instrument may only be installed by an engi-
neer or technician who has an expert knowledge of
this device. Operators are not allowed to carry out
installation unless they meet this condition.
• With high process temperatures, care must be taken
not to burn yourself by touching the instrument or
its casing.
• Never loosen the process connector nuts when the
instrument is installed in a process. This can lead to
a sudden, explosive release of process fluids.
• When draining condensate from the pressure
detector section, take appropriate precautions to
prevent the inhalation of harmful vapors and the
contact of toxic process fluids with the skin or eyes.
• When removing the instrument from a hazardous
process, avoid contact with the process fluid and the
interior of the meter.
• All installation shall comply with local installation
requirements and the local electrical code.
(b) Wiring
• The instrument must be installed by an engineer or
technician who has an expert knowledge of this
instrument. Operators are not permitted to carry out
wiring unless they meet this condition.
• Before connecting the power cables, please confirm
that there is no current flowing through the cables
and that the power supply to the instrument is
switched off.
(c) Operation
• Wait 10 min. after the power is turned off before
opening the covers.
(d) Maintenance
• Please carry out only the maintenance procedures
described in this manual. If you require further
assistance, please contact the nearest Yokogawa
office.
• Care should be taken to prevent the build up of dust
or other materials on the display glass and the name
plate. To clean these surfaces, use a soft, dry cloth.
(e) Modification
• Yokogawa will not be liable for malfunctions or
damage resulting from any modification 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 occurring during the warranty
period shall basically be repaired free of charge.
• If any problems are experienced with this instru-
ment, the customer should contact the Yokogawa
representative from which this instrument was
purchased or the nearest Yokogawa office.
• 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 specification and serial number. Any
diagrams, data and other information you can
include in your communication will also be helpful.
• The party responsible for the cost of fixing the
problem shall be determined by Yokogawa follow-
ing an investigation conducted by Yokogawa.
• The Purchaser shall bear the responsibility for repair
costs, even during the warranty period, if the
malfunction is due to:
- Improper and/or inadequate maintenance by the
purchaser.
- Malfunction or damage due to a failure to handle,
use, or store the instrument in accordance with the
design specifications.
- Use of the product in question in a location not
conforming to the standards specified by
Yokogawa, or due to improper maintenance of the
installation location.
- Failure or damage due to modification or repair by
any party except Yokogawa or an approved
representative of Yokogawa.
- Malfunction or damage from improper relocation
of the product in question after delivery.
- Reason of force majeure such as fires, earthquakes,
storms/floods, thunder/lightening, or other natural
disasters, or disturbances, riots, warfare, or
radioactive contamination.