<1. Introduction>
1-2
IM 02C01B04-01EN
1.1 Safety Precautions
WARNING
• Instrument installed in the process is under
pressure. Never loosen or tighten the
process connector bolts as it may cause
dangerous spouting of process fluid.
• During draining condensate or venting gas
in transmitter 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.
Since draining condensate or bleeding
off gas gives the pressure measurement
disturbance, this should not be done when
the loop is in operation.
• If the accumulated process fluid may be
toxic or otherwise harmful, take appropriate
care to avoid contact with the body, or
inhalation of vapors even after dismounting
the instrument from process line for
maintenance.
IMPORTANT
• Supply air must be clean and dry.
- Supply air (pressurized) must not be
dewed event at -40°C.
- Air filter with 5μm (0.0002 inch) of filter
element maximum opening shall be
recommended.
- Oil filter should be provided to remove oil
in the supply air.
• Maximum supply air pressure of transmitter
without fixed pressure regulator (GAS or
NAS type) is 215 kPa. Should the pressure
exceed 215 kPa, it is possible to break the
pneumatic amplifier, bellows etc.
• When weling piping during construction, take
care not to allow welding currents to flow
through the transmitter.
• Do not step on this instrument after
installation.
• Applying a leakag-detecting fluid to the
instrument may damage the plastic parts
resulting from corrosion or cracking.
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 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.
• Responsible party for repair cost for the
problems shall be determined by Yokogawa
based on our investigation.
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.
• Failure or damage due to improper handling,
use or storage which is out of design
conditions.
• Use of the product in question in a location
not conforming to the standards specified
by the Yokogawa, or due to improper
maintenance of the installation location.
• Failure or damage due to modification or
repair by the party except Yokogawa or who
is requested by 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.
