Yokogawa EJX115A - Manual (Page 15)

<2. Handling Cautions>
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IM 01C25A01-01E
d. 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 certification 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 specified.
• 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 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.
Transmitter
Associated
Apparatus
Nonhazardous Area
[Control Drawing]
Hazardous Area
+
–
F0212.ai
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.
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