YOKOGAWA AXFA14G User Manual

<5. Basic Operating Procedures>
58
IM 01E20A01-01EN
5.5.2 ConnectingtheHARTConguration
Tool
TheHARTCongurationToolcaninterfacewiththe
magneticowmeterfromthecontrolroom,themagnetic
owmetersite,oranyotherwiringterminationpointinthe
loop, provided there is a minimum load resistance of 250
Ωbetweentheconnectionandthereceivinginstrument.
To communicate, it must be connected in parallel with the
magneticowmeter,andtheconnectionsmustbenon-
polarized. Figure 5.5.2 illustrates the wiring connections
foradirectinterfaceatthemagneticowmetersite.The
HARTCongurationToolcanbeusedforremoteaccess
from any terminal strip as well.
Relaying terminals
Magnetic flowmeter
terminal box
4 to 20mA DC
shignal
transmission line
Control room
Receiving
resistance
250 to
450Ω
Receiving
instrument
Terminal
board
F0530.ai
USB
FieldMate
modem
USB
PC/FieldMate
Figure5.5.2 ConnectingtheHARTCongurationTool
WARNING
Be sure to set parameters as "Protect" on the write
protectfunctionafternishofparametersettingwork.
Under extremely rare case, the infra-red switches may
respond unexpectedly in such conditions as sticking
ball of water or extraneous substances on the surface
of display panel glass according to the principle of
infra-red switch operation.
Its probability rises in such cases as sticking rain water
by storm or other similar situation and washing up
worknearowmeterinstallationplace.
Either to illuminate or stop illuminating the infra-red
switchesbytheashlightmaycausethemis-reaction.
Fordetails,referto“ParameterDescription”ofthe
appropriate manual which can be downloaded from
our website.
IMPORTANT
• Restrictions exist with regard to the distance over
which communication is possible.
 Referto“OUTLINE”oftheappropriatemanual
which can be downloaded from our website.
• Ifthepowerofmagneticowmeteristurnedoff
within 30 seconds after parameters have been set,
these settings will be canceled. Accordingly, keep
the power on for at least 30 seconds after setting
parameters.
NOTE
Before updating any setting, remember to always
check the data content you want to change as
described in Chapter 8.
Fordetails,referto“ParameterDescription”ofthe
appropriate manual which can be downloaded from
our website.
NOTE
IncaseofHARTConguration,theparametersare
displayed in English only.
Even if the language with the exception of English is
selectedat“Language”settingdisplay,theparameters
aredisplayedinEnglishuponHARTConguration
Tool.

YOKOGAWA AXFA14G Specifications

General

Brand	YOKOGAWA
Model	AXFA14G
Category	Measuring Instruments
Language	English