YOKOGAWA DPharp EJX Series User Manual

<2. Handling Cautions>
2-9
IM 01C25B01-01E
c. CENELEC ATEX (KEMA) Intrinsically Safe
Type/CENELEC ATEX (KEMA) Flameproof
Type/CENELEC ATEX Type n
Model EJX Series pressure transmitters with
optional code /KU21 or /V1U can be selected
the type of protection CENELEC ATEX (KEMA)
Intrinsically Safe, Flameproof or CENELEC
ATEX Type n for use in hazardous locations.
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. In order to avoid confusion, unnecessary
marking is crossed out on the label other
than the selected type of protection when
the transmitter is installed.
● CENELEC ATEX Type of Protection “n”
• Applicable Standard: EN 60079-15
• Referential Standards: IEC60079-0,
IEC 60079-11
• Type of Protection and Marking Code:
Ex nL IIC T4
• Temperature Class: T4
• Enclosure: IP66 and IP67
• Process Temperature: 120°C max.
• Ambient Temperature: –50* to 60°C
*–15°Cwhen/HEisspecied.
Note 1. Electrical Data
Ui = 30 V
Effective internal capacitance; Ci = 10 nF
Effective internal inductance; Li = 0 mH
Note 2. Installation
• All wiring shall comply with local installation
requirements. (refer to the installation
diagram)
Note 3. Maintenance and Repair
• Theinstrumentmodicationorparts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void Type
of Protection “n”.
[Ex nL]
Power Supply
(Zone 2 only)
Transmitter
Supply
Nonhazardous Location
[Installation Diagram]
Hazardous Location
+
–
+
–
F0207.ai
Ratings of the Power Supply as follows;
Maximum Voltage: 30 V
(2) Electrical Connection
A mark indicating the electrical connection type
is stamped near the electrical connection port.
These marks are as followed.
F0208.ai
Location of the mark
Screw Size Marking
ISO M20 × 1.5 female
ANSI 1/2 NPT female
M
A or W
(3) Installation
WARNING
• All wiring shall comply with local installation
requirements and the local electrical code.
• There is no need for conduit seal in Division
1 and Division 2 hazardous locations
because this product is sealed at the factory.
(4) Operation
WARNING
• OPEN CIRCUIT BEFORE REMOVING
COVER. INSTALL IN ACCORDANCE WITH
THIS USER’S MANUAL
• Take care not to generate mechanical
sparking when access to the instrument and
peripheral devices in a hazardous location.

YOKOGAWA DPharp EJX Series Specifications

General

Brand	YOKOGAWA
Model	DPharp EJX Series
Category	Transmitter
Language	English