User`s manual

<1. Introduction>
1-2
IM 01C25B01-01E
• 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.
• Thefollowingsafetysymbols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
Functional grounding terminal
Caution
This symbol indicates that the operator must
refer to an explanation in the user’s manual
in order to avoid the risk of injury or death of
personnel or damage to the instrument.
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
impaired. 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
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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.