<2. Handling Cautions>
2-10
IM 01C25C01-01E
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. 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 IEC 60079-0
EN 60079-1, EN 60079-31
• Type of Protection and Marking Code:
II 2 G
Ex
db IIC T6...T4 Gb
II 2 D
Ex
tb IIIC T85°C Db
• 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)
• Maximum Surface Temperature for dust-proof:
T85°C (Tamb.: –30* to 75°C, Tp.: –30* to
85°C)
* –15°C when /HE is specified.
Note 2. Electrical Data
• Supply voltage: 42 V dc max.
32 V dc max. (F
OUNDATION
Fieldbus and
PROFIBUS PA type)
9 to 28 V dc, 27 mW (Low Power type)
9 to 30 V dc, 250 mW (RS485 Modbus
Communication Type)
• Output signal: 4 to 20 mA
15 mA (F
OUNDATION
Fieldbus and
PROFIBUS PA type)
1 to 5 V (Low Power type)
RS485 Modbus (RS485 Modbus
Communication Type)
Note3. 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 ertification label on the transmitter to
distinguish it from unused approval types.
