User guide

<1. Introduction>
1-2
IM 01C25T03-01E
(a) Installation
• This instrument may only be installed by an
engineer 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
uids.
• When draining condensate from the pressure
detector section, take appropriate precautions
to prevent the inhalation of harmful vapors and
the contact of toxic process uids with the skin
or eyes.
• When removing the instrument from a
hazardous process, avoid contact with the
process uid 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
conrm that there is no current owing 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 ofce.
• 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) Modication
• Yokogawa will not be liable for malfunctions or
damage resulting from any modi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 occurring during
the warranty period shall basically be repaired
free of charge.
• If any problems are experienced with this
instrument, the customer should contact the
Yokogawa representative from which this
instrument was purchased or the nearest
Yokogawa of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 specication
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 xing the
problem shall be determined by Yokogawa
following 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 specications.
- Use of the product in question in a location
not conforming to the standards specied by
Yokogawa, or due to improper maintenance
of the installation location.
- Failure or damage due to modication 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 res,
earthquakes, storms/oods, thunder/
lightening, or other natural disasters, or
disturbances, riots, warfare, or radioactive
contamination.