<2. Handling Cautions>
2-9
IM 01C25B01-01E
• Process Temperature (Tp.): 120°C max.
• Maximum Surface Temperature for EPL Db:
T85°C (Tp.: 80°C)
T100°C (Tp.: 100°C)
T120°C (Tp.: 120°C)
• Enclosure: IP66 / IP67
To satisfy IP66 or IP67, apply waterproof
glands to the electrical connection port.
Note 2 Electrical Data
• In type of explosion protection intrinsic safety
Ex ia IIC or Ex ia IIIC, only for connection to a
certified intrinsically safe circuit with following
maximum values:
Ui = 30 V
Ii = 200 mA
Pi = 0.9 W
(Linear Source)
Maximum internal capacitance; Ci = 27.6 nF
Maximum internal inductance; Li = 0 µH
Note 3. Installation
• Refer to the control drawing. All wiring shall
comply with local installation requirements.
Pressure Transmitters
Supply
Safety Barrier *1
Nonhazardous Location
[Control Drawing]
Hazardous Location
+
–
+
–
F0206.ai
*1: Any safety barriers must be a linear power source
whose output current is resistively limited.
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
• When the enclosure of the Pressure
Transmitter is made of aluminum, if it
is mounted in an area where the use of
category 1G equipment 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 charges on the coated parts of
Pressure Transmitter shall be avoided.
• Electrostatic charge may cause an exlosion
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 case of the enclosure of the Pressure
Transmitter with paint layers, if it is mounted
in an area where the use of category 2D
equipment 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.
b. ATEX Flameproof Type
Caution for ATEX flameproof type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /KF22 are applicable for
use in hazardous locations.
• No. KEMA 07ATEX0109 X
• Applicable Standard:
EN 60079-0:2012+A11:2013
EN 60079-1:2014, EN60079-31:2014
• Type of Protection and Marking Code:
Ex db IIC T6...T4 Gb, Ex tb IIIC T85°C Db
• Group: II
• Category: 2G, 2D
• Enclosure: IP66 / IP67
• Temperature Class for gas-poof:
T6, T5, and T4
• Ambient Temperature for gas-proof:
–50 to 75°C (T6), –50 to 80°C (T5), and
–50 to 75°C (T4)
• Process Temperature (Tp.) for gas-proof:
–50 to 85°C (T6), –50 to 100°C (T5), and
–50 to 120°C (T4)
