<2. Handling Cautions>
2-14
IM 01C25C01-01E
Note 2. Specific condition of use
When the equipment is mounted in an area
where the use of EPL Ga equipment is
required, it shall be installed in such a way that,
even in the event of rare incidents, an ignition
source due to impact and/or friction sparks is
excluded.
Precaution shall be taken to minimize the risk
from electrostatic discharges or propagating
brush discharges on the non-metallic parts
(excluding glass parts) or coated parts of the
equipment.
The dielectric strength of at least 500 V of the
intrinsically safe circuits of the equipment is
limited only by the overvoltage protection. From
the safety point of view, the intrinsically safe
circuit of the equipment shall be assumed to be
connected to earth.
Note 3. Installation and erection
Cable entry devices suitable for the thread
form and the size of the cable entries must be
used, according to the following marking on the
equipment.
F0218.ai
Screw Size
Marking
ISO M20 × 1.5 female
ANSI 1/2 NPT female
M
A or
W
N or
When installing the equipment, the selected
Type of Protection should be ticked as follows.
Ex ia IIC T4 Ga
Ex ic IIC T4 Gc
See the control drawing.
Note 4. Use and setting-up (operation)
If the equipment is mounted in an area where
explosive atmospheres may be present, it must
be installed in such a way that the risk from
electrostatic discharges and propagating brush
discharges caused by rapid flow of dust are
avoided.
Note 5. Maintenance and repair
WARNING
A modification of the equipment would no longer
comply with the construction described in the
certificate documentation.
Only personnel authorized by Yokogawa Electric
Corporation can repair the equipment.
Yokogawa Electric Corporation
Model
EJX Series
Title
Control drawing (General)
No.
IKE045-A91
Page
1
Revision
0
Date
2020-08-07
Notes:
1. Associated Apparatus must be a linear power source whose output current is resistively limited.
SUPPLY
−
Ui= 30 V
Ii= 200 mA
Pi= 0.9 W
Ci= 27.6 nF
Li= 0
μ
H
Transmitter
Hazardous Area Non
−
Hazardous Area
Associated
A
pparatus
(Note 1)
b. IECEx Intrinsically Safe Ex ic
Caution for IECEx Intrinsically safe Ex ic.
Note 1. EJX/EJA-E series pressure transmitters
with optional code /SU21 are applicable for
use in hazardous locations
• No. IECEx DEK 13.0061X
• Applicable Standard: IEC 60079-0:2011,
IEC 60079-11:2011
• Ex ic IIC T4 Gc
• Ambient Temperature: –30* to 60°C
* -15 °C when /HE is specified.
• Max. Process Temp.: 120°C
• IP Code: IP66
• Overvoltage Category: I
Note 2. Electrical Data
Maximum Input Voltage (Ui) = 30 V
Maximum Internal Capacitance (Ci) = 27.6 nF
Maximum Internal Inductance (Li) = 0 μH
