<2. Handling Cautions>
2-13
IM 01C25K01-01E
• The safety barrier must be IECEx certified.
• Input voltage of the safety barrier must be
less than 250 Vrms/Vdc.
• The instrument modification or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void IECEx
certification.
F0216.ai
EJX/EJA-E Series
Pressure Transmitters
IECEx certified
Safety Barrier
Supply
Hazardous Location
Nonhazardous Location
+
–
+
–
[Ex ia]
Group IIC, Zone 0
(*1)
*1: When using non isolation barrier,
connect (*1) to IS barrier system.
Note 4. Specific Condition of 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 aluminum,
if it is mounted in an area where the use of
EPL Ga equipment is required, it shall be
installed in such a way that , even in the
event of rare incidents, ignition sources due
to impact and friction sparks are excluded.
• When the lightning protector option is
specified, the apparatus is not capable
of withstanding the 500 V insulation test
required by IEC 60079-11. This must be
taken into account when installing the
apparatus.
b. IECEx Intrinsically Safe Ex ic
Caution for IECEx Intrinsically safe Ex ic.
Note 1. EJX/EJA-E series pressure transmitters
with optional code /SU21 are applicable for
use in hazardous locations
• No. IECEx DEK 13.0061X
• Applicable Standard: IEC 60079-0:2011,
IEC 60079-11:2011
• Ex ic IIC T4 Gc
• Ambient Temperature: –30* to 60°C
* -15 °C when /HE is specified.
• Max. Process Temp.: 120°C
• IP Code: IP66
• Overvoltage Category: I
Note 2. Electrical Data
Maximum Input Voltage (Ui) = 30 V
Maximum Internal Capacitance (Ci) = 27.6 nF
Maximum Internal Inductance (Li) = 0 μH
Note 3. Installation
• The pressure transmitter is allowed to
be installed in “nL” systems, on condition
that the output parameters of “nL” source
(associated energy-limited apparatus)
are suitable to the above mentioned input
parameters of the pressure transmitter and
the cable parameters.
• 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 specified degree of protection of the
equipment.
• The instrument modification or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void IECEx
certification.
F0217.ai
EJX/EJA-E Series
Pressure Transmitters
Associated apparatus
Supply
Hazardous Location
Nonhazardous Location
+
–
+
–
[Ex ic]
Note 4. Specific Condition of 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.
• The apparatus is not capable of dielectric
strength tests required by IEC 60079-11.
This must be taken into account when
installing the apparatus.
