<2. Handling Cautions>
22
IM 01C25A01-01E
f. ATEX Intrinsically Safe Ex ic for Fieldbus
Type (Except for EJX9
0A)
Caution for ATEX Intrinsically safe Ex ic.
EJX/EJA-E Series pressure transmitters with optional
code /KN26 are applicable for use in hazardous
locations.
• Applicable Standard:
EN 60079-0:2012+A11:2013
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 specified.
• Maximum Process Temperature: 120°C
• Ambient Humidity:
0 to 100% (No condensation)
• IP Code: IP66
• Ambient pollution degree: 2
• Overvoltage category: I
Note 1. Electrical Data
Ui = 32 V
Ci = 3.52 nF
Li = 0 µH
Note 2. Installation
• All wiring shall comply with local installation
requirements. (refer to the control drawing)
• When installing the transmitter in “ic” FISCO
system or FNICO system, follow the installation
requirements of each system.
• 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 (IP Code) of the transmitters.
Note 3. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void ATEX intrinsically safe.
Associated
Apparatus
Transmitter
Nonhazardous Area
[Control Drawing]
Hazardous Area
+
–
F0233.ai
• Above drawing shows the installation of Entity
system.
When installing the transmitters in “ic” FISCO
system or FNICO system, follow the installation
requirements of each system.
Note 4. Specific Conditions of Use
WARNING
• Electrostatic charge may cause an explosion
hazard. Avoid any actions that cause the
gerenation of eletrostatic charge, such as rubbing
with a dry cloth on coating face of the product.
• When the lightning protector option is specified,
the apparatus is not capable of withstanding the
500V insulation test required by EN60079-11. This
must be taken into account when installing the
apparatus.
(2) Electrical Connection
A mark indicating the electrical connection type is
stamped near the electrical connection port. These
marks are as followed.
F0214.ai
Location of the mark
Screw Size
Marking
ISO M20 × 1.5 female
ANSI 1/2 NPT female
M
N or
W
(3) Installation
WARNING
• All wiring shall comply with local installation
requirements and the local electrical code.
• There is no need for conduit seal in Division 1
and Division 2 hazardous locations because this
product is sealed at the factory.
(4) Operation
WARNING
• OPEN CIRCUIT BEFORE REMOVING COVER.
INSTALL IN ACCORDANCE WITH THIS USER’S
MANUAL
• Take care not to generate mechanical sparking
when access to the instrument and peripheral
devices in a hazardous location.
