<2. Handling Cautions>
21
IM 01C25A01-01E
Note 4. Operation
• Keep the “WARNING” label attached to the
transmitter.
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. Specific Conditions 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 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
flow of dust is avoided.
• The instrument modification or parts replacement
by other than an authorized Representative of
Yokogawa Electric Corporation is prohibited and
will void the certification.
• The fasteners used to fasten the transmitter
enclosure onto the sensor capsule is special
fastener, and the property class of it is
A2-50(A4-50) or more.
e. ATEX Intrinsically Safe and ATEX
Flameproof Combination for HART/BRAIN
Protocol Type (Except for EJX9
0A)
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 60079-0:2012+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.
• 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.
Pressure
Transmitters
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
generation of electrostatic 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.
