<2. Handling Cautions>
19
IM 01C25A01-01E
c. ATEX Intrinsically Safe for Fieldbus Type
for EJX9
0A
Caution for ATEX Intrinsically safe type.
Note 1. EJX multivariable transmitter with optional
code /KS26 are applicable for use in hazardous
locations:
• No. KEMA 06ATEX0278 X
• Applicable Standard:
EN 60079-0:2012+A11:2013
EN 60079-11:2012
Note 2. Ratings
Type of Protection and Marking Code:
Ex ia IIC/IIB T4 Ga
Ex ia IIIC T85°C T100°C T120°C Db
Group: II
Category: 1G, 2D
Ambient Temperature for EPL Ga:
–40 to 60°C
Ambient Temperature for EPL Db:
–30* to 60°C
* –15°C when /HE is specified.
Maximum Process Temperature (Tp.): 120°C
Maximum Surface Temperature for EPL Db.
T85°C (Tp.: 80°C)
T100°C (Tp.: 100°C)
T120°C (Tp.: 120°C)
Ambient Humidity:
0 to 100% (No condensation)
Degree of Protection of the Enclosure:
IP66/IP67
Electrical Data
• When combined with Trapezoidal or Rectanglar
output characteristic FISCO model IIC barrier
[Supply circuit (ter and -)]
Ui = 17.5 V, Ii = 380 mA, Pi = 5.32 W,
Ci = 3.52 nF, Li = 0 µH
[Sensor circuit]
Uo = 7.63 V, Io = 3.85 mA, Po = 0.008 W,
Co = 4.8 µF, Lo = 100 mH
• When combined with Linear characteristic barrier
[Supply circuit (ter and -)]
Ui = 24 V, Ii = 250 mA, Pi = 1.2 W,
Ci = 3.52 nF, Li = 0 µH
[Sensor circuit]
Uo = 7.63 V, Io = 3.85 mA, Po = 0.008 W,
Co = 4.8 µF, Lo = 100 mH
• When combined with Trapezoidal or Rectanglar
output characteristic FISCO model IIB barrier
[Supply circuit (ter and -)]
Ui = 17.5 V, Ii = 460 mA, Pi = 5.32 W,
Ci = 3.52 nF, Li = 0 µH
[Sensor circuit]
Uo = 7.63 V, Io = 3.85 mA, Po = 0.008 W,
Co = 4.8 µF, Lo = 100 mH
Note 3. Installation
• All wiring shall comply with local installation
requirements. (Refer to the installation diagram)
Note 4. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void DEKRA Intrinsically safe Certification.
Note 5. Special Conditions for Safe Use
WARNING
• 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 1G apparatus
is required, it must be installed such, that even in
the event of rare incidents, ignition sources due to
impact and friction sparks are excluded.
• 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 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.
• To satisfy IP66 or IP67, apply waterproof glands to
the electrical connection port.
• 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.
Note 6. Installation instructions
Non-Hazardous Location
Hazardous Location
F0232.ai
Terminator
Safety Barrier
Transmitter
Pressure
Transmitter
Transmitter
+
−
+
−
+
−
Terminator
+
−
+
−
SUPPLY
RTD
Pt100.3wire
[Installation Diagram]
