YOKOGAWA AXFA14G User Manual

<10. Explosion Protected Type Instrument>
83
IM 01E20A01-01EN
• Gas Group and Temperature Class: IIC T4
• Ambient Temperature: –20 to 60°C
• Fluid Temperature: 120°C max
• Electrode Circuit: 250 V AC/DC
• Grounding:JISClassC(groundingresistance10Ωor
less)orJISClassA(groundingresistance
10Ωorless)
(AXFA14 Remote Converter)
• Certicate:TC16678
• Construction: Ex d IIC T6
: Explosion proof
• Gas Group and Temperature Class: IIC T6
• Ambient Temperature: –20 to 60°C (power supply
code 1)
: –20 to 50°C (power supply
code 2)
• Maximum power supply voltage: 250V AC/130V DC
• Grounding:JISClassC(groudingresistance10Vor
less)orJISClassA(groundingresistance
10V or less)
WARNING
In case that ambient temperature exceeds 50°C,
use heat-resistant cables with maximum allowable
temperature of 70°C or above.
WARNING
IncaseofTIISFlameprooftype,aremoteowtubeis
available for combined use with the AXFA14 converter
only.
(2) Wiring Installation
Fortheexternalwiringofameprooftypes,usea
ameproofpackingadapterapprovedbyYokogawa(refer
toFigure10.5.2)orcablewiringusingaameproofmetal
conduit(refertoFigure10.5.4and“INSTALLATIONAND
OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF
EQUIPMENT”attheendofthismanual).
NOTE
ThissectiondescribestheIntegralowmeterasan
example. The same attention must be paid to the
remoteowtubeandremoteconverter.
(2-1) Wiring Cable through Flameproof
Packing Adapter
WARNING
FortheTIISameprooftypewithwiringusinga
ameproofpackingadapter,wirecablesthroughthe
packing adapters approved by Yokogawa (optional
code G12, G11, G14 or G13).
In case that optional code G11 or G13 is selected, it
comes with a blanking plug.
Then always apply it to the unused wiring port.
T1
T2
L
18(0.71)
G
F
D
C
16.5(0.65)
*Packing
(Choose from the table below
depend on cable outside diameter)
Unit : mm
(Approx. inch)
Adapter body(M. Screw)
Packing case
Hexagon socket set screw
O-Ring
Packing *
O-Ring
O-Ring
Washer
Union nut
Packing gland
Clamp ring
Clamp nut
O-Ring
B.coupling
Cable(user's scope)
Hexagon socket set screw
0.26
(0.57)
ø8.0 to ø10.0 (0.31 to 0.39)
ø10.0 to ø12.0 (0.39 to 0.47)
16 8-10
16 10-12
Identification
mark
Weight
kg
(lb)
G9601AM
Parts
No.
Packing diameter
Cable outer diameter
T1 T2
C D
L
Dimension
G 1/2
Nominal diameter
G 1/2
35
(1.38)
39
(1.54)
94.5
(3.72)
ø10.0(0.39)
ø12.0(0.47)
ø20.0
(0.79)
F G
F1021.ai
Figure 10.5.1 Flameproof Packing Adapter
• Apply a non-hardening sealant to the terminal box
connectionportandtothethreadsontheameproof
packingadapterforwaterproong.
• Eitheraameproofpackingadapterorablanking
plug must be applied to every wiring port.
In case that optional code G11 or G13 is selected, it
comes with a blanking plug.
Then always apply it to the unused wiring port.
If the blanking plug is necessary, always purchase it
(parts number: G9330DP) from Yokogawa.
Flameproof
packing adapter
Wiring metal
conduit
Flexible metal conduit
Tee
Drain plug
F1022.ai
Apply a blanking
plug to the unused
wiring port
Apply a non-hardening
sealant to the threads of these
fittings for waterproofing.
Figure 10.5.2 Typical Wiring Using Flexible Metal Conduit
Explosion Protected Type Instrument
10

YOKOGAWA AXFA14G Specifications

General

Brand	YOKOGAWA
Model	AXFA14G
Category	Measuring Instruments
Language	English