YOKOGAWA EJX Series User Manual

  <3.Installation>
20
IM01C25A01-01E
IMPORTANT
Thetransmittershouldbeinstalledatleast600mmbelow
thehighpressure(HP)processconnectiontoensurea
positiveheadpressureoflluid.Payspecialattentionto
vacuumapplications.
Ifitcannotbeinstalledatleast600mmbelowtheHP
processconnection,pleaseusetheequationbelow:
h= × 0.102 [mm]
(P–P0)
ds
h: VerticalheightbetweentheHPprocessconnection
andthetransmitter(mm)
h≤0:Installthetransmitteratleasth(mm)belowthe
HPprocessconnection
h>0:Installthetransmitteratmosth(mm)abovethe
HPprocessconnection
P: Pressureinthetank(Paabs)
P0:Minimumworkingpressurelimitofthetransmitter(Pa
abs)Seebelowtable.
[ForlluidcodeA,B,C,D,E]
Wettedparts
material
code
Capillary
length
Processconnectionsize
code
2,8 3 4,W
SW
1to5m 6790 3190
6to10m 10030 3520
SE
1to5m 6790 3190
6to10m 10030 3520
SY
1to5m 3190
6to10m 3520
HW
1to5m 19150 6140
6to10m 8290
TW
1to5m 9620 3620
6to10m 4210
UW
1to5m 9540 4750
6to10m 6050
[Forlluidcode1,2,4]
Wettedparts
material
code
Capillary
length
Processconnectionsize
code
2,8 3 4,W
SW
1to5m 2570 320
6to10m 4680 530
SE
1to5m 2570 320
6to10m 4680 530
SY
1to5m 320
6to10m 530
HW
1to5m 10220 2050
6to10m 3450
TW
1to5m 4270 570
6to10m 960
ds:Specicgravityoflluid(at25°C).Seebelowtable.
Filluid
code
A,1,4 B C,2 D E
ds:Specic
gravity
1.07 0.94 1.09
1.90to
1.92
1.09
F0308.ai
P
Low pressure side
High
pressure
side
(+)
(–)
0
h
Figure3.8 ExampleofInstallationtoTank
(CautiononInstallation)
3.4 MountingtheFlushing
ConnectionRing
3.4.1 MountingtoPressureDetector
Section
Theushingconnectionringismountedtothepressure
detectorsectionasshowninFigure3.9.
Atthefactoryshipment,theushingconnectionringis
alreadyassembledandattachedtoprocessdetector
section.
Ring holder
Spiral gasket
F0309.ai
View from pressure
detector section
Groove for
installing
spiral gasket
Pressure-detector section
Drain/vent plug
Ring
Figure3.9 MountingtoPressureDetectorSection
(1)Mounttheringholderontheringandlooselytighten
themountingscrews.
(2)Placethespiralgasketintheringgroove.Withthe
ringcorrectlyalignedandushwiththefaceofthe
pressuredetector,securelytighteneachringholder’s
mountingscrews.
(3)Positiontheringsothatthedrain/ventplugsare
alignedstraightupanddown.

YOKOGAWA EJX Series Specifications

General

Brand	YOKOGAWA
Model	EJX Series
Category	Transmitter
Language	English