YOKOGAWA EJA210E User Manual

<5. Wiring>
45
IM01C25A01-01E
(2) Flameproof Type
Wirecablesthroughaameproofpackingadapter,oruse
aameproofmetalconduit.
 Wiringcablethroughameproof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.
Flameproof packing
adapter
Flexible metal conduit
Wiring metal
conduit
Tee
Drain plug
Apply a non-hardening
sealant to the threads for
waterproofing.
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Figure 5.16 Typical Cable Wiring Using Flameproof
Packing Adapter
 Flameproof metal conduit wiring
• Asealttingmustbeinstalledneartheterminalbox
connection port for a sealed construction.
• Applyanon-hardeningsealanttothethreadsofthe
terminalboxconnectionport,exiblemetalconduit
andsealttingforwaterproong.
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Non-hazardous area
Hazardous area
Flameproof
heavy-gauge
steel conduit
Tee
Drain plug
Seal fitting
Gas sealing device
Flameproof flexible
metal conduit
Apply a non-hardening
sealant to the threads of
these fittings for
waterproofing
After wiring, impregnate the fitting
with a compound to seal tubing.
Figure 5.17 Typical Wiring Using Flameproof Metal
Conduit
5.4 RTD Cable Connection
(EJX910A/EJX930A)
ConnectionoftheRTDcableisalwaysrequiredto
measureexternaltemperature.Followtheprocedures
belowtoconnectacablewhenacableglandoraconduit
is used.
5.4.1 Connecting Shielded Cable with
Cable Gland (External temperature
input code: -1, -2, -3, and -4)
• RTDconnectioncomponents:EJXmultivariable
transmitter,twocableglands,andRTDcable.
Twocableglandsareattached.
Transmitter
Cable gland
Electrical connection
RTD cable
with connector
Detail of connector
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• MagniedviewoftheRTDconnectorinthe
transmitter'sterminalbox.
ALARM ALARM
Protection Cap Connecting Port
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TheRTDcableconnectingportiscoveredwithacapto
keepoutdust.Thecapshouldnotberemoveduntilyou
arereadytoinstallthecable.
• Componentsforthecablegland
Thecableglandassemblyconsistsofanentry,seal,
runningcoupler,andbacknut.Conrmthatthesealis
attachedinsidetheentryandthatthethreadsizeofthe
cableglandisthesameasthatfortheRTDelectrical
connection.
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1/2NPT Type
M20 Type
Gasket
Entry with Seal
Running
Coupler
Backnut
Entry with Seal
Running
Coupler
Backnut
CAUTION
Input/outputsignalisnon-isolated.
Donotturnonpowersupplyuntilyoucompleteallthe
wiringwork.

YOKOGAWA EJA210E Specifications

General

Brand	YOKOGAWA
Model	EJA210E
Category	Transmitter
Language	English