User`s manual

<2. Handling Cautions>
2-10
IM 01C25B01-01E
F0213.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Note 4. Operation
WARNING: AFTER DE-ENERGIZING,
DELAY 5 MINUTES BEFORE OPENING.
WHENTHEAMBIENTTEMP.≥65°C,USE
HEAT-RESISTING CABLE AND CABLE
GLAND ≥90°C.
• Take care not to generate mechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
Note 5. Special Conditions for Safe Use
WARNING
• Electrostaticchargemaycauseanexplosion
hazard. Avoid any actions that cause the
generation of electrostatic charge, such as
rubbing with a dry cloth on coating face of the
product.
• Inthecasewheretheenclosureofthe
Pressure Transmitter is made of aluminium,
if it is mounted in an area where the use of
category2Dapparatusisrequired,itshall
be installed in such a way that the risk from
electrostatic discharges and propagating
brushdischargescausedbyrapidowof
dust is avoided.
• Theinstrumentmodicationorparts
replacement by other than an authorized
Representative of Yokogawa Electric
Corporation is prohibited and will void the
certication.
c. ATEX Intrinsically Safe Type/ATEX
Flameproof Type
Model EJX/EJA-E Series pressure transmitters
with optional code /KU22 or /V1U1 can
be selected the type of protection ATEX
Flameproof, Intrinsically Safe. Ex ia, or Ex ic for
use in hazardous area.
Note 1. For the installation of this transmitter,
once a particular type of protection is
selected, any other type of protection
cannot be used. The installation must be in
accordance with the description about the
type of protection in this user’s manual.
Note 2. For combined approval types Once a
device of multiple approval type is installed,
it should not be re-installed using any
other approval types. Apply a permanent
mark in the check box of the selected
approvaltypeonthecerticationlabelon
the transmitter to distinguish it from unused
approval types.
● ATEXIntrinsicallySafeExic
Caution for ATEX intrinsically safe Ex ic
• ApplicableStandard:
EN 60079-0:2009/EN 60079-0:2012,
EN 60079-11:2012
• TypeofProtectionandMarkingCode:
II 3G Ex ic IIC T4 Gc
• AmbientTemperature:–30*to+60°C
*–15°Cwhen/HEisspecied.
• AmbientHumidity:
0 to 100% (No condensation)
• MaximumProcessTemperature:120°C
• IPCode:IP66
• Ambientpollutiondegree:2
• Overvoltagecategory:I
Note 1. Electrical Data
Ui = 30 V
Ci = 27.6 nF
Li = 0 µH
Note 2. Installation
• Allwiringshallcomplywithlocalinstallation
requirements.(refertothecontroldrawing)
• Cableglands,adaptersand/orblanking
elements shall be of Ex “n”, Ex “e” or Ex “d”
and shall be installed so as to maintain the
specieddegreeofprotection(IPCode)of
the transmitters.