User Manual

<1. INTRODUCTION AND GENERAL DESCRIPTION>
1-14
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
WARNING
Installation and wiring
TheFLXA21shouldonlybeusedwithequipmentthatmeetstherelevantIEC,Americanor
Canadian standards. Yokogawa accepts no responsibility for the misuse of this unit.
WARNING
Don’tinstall“generalpurposetype”instrumentsinthehazardousarea.
CAUTION
The Instrument is packed carefully with shock absorbing materials, nevertheless, the instrument
may be damaged or broken if subjected to strong shock, such as if the instrument is dropped.
Handle with care.
CAUTION
This instrument is a Class A product, and it is designed for use in the industrial environment.
Please use this instrument in the industrial environment only.
CAUTION
TheHARTcommunicationmaybeinuencedbystrongelectromagneticeld.
In this case another trial of the HART communication and/or operation with FLXA21 touch screen
can be carried out.
WARNING
• Donotuseanabrasiveororganicsolventincleaningtheinstrument.
• DonotmodifytheFLXA21.
• SubstitutionofcomponentsmayimpairsuitabilityforDivision2.
 Donotremoveorreplacewhilecircuitisliveunlessareaisknowtobenon-hazardous.
 ExplosionHazard–Donotdisconnectequipmentunlessareaisknowntobe
nonhazardous.
 Donotresetcircuitbreakerunlesspowerhasbeenremovedfromtheequipmentorthearea
is known to be non-hazardous.