<2. Handling Cautions>
16
IM 01C25A01-01E
Non-hazardous
Location Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Non-Hazardous
Locations
Hazardous Locations Division 1
50 cm Max.
Sealing Fitting
Conduit
Transmitter
F0208.ai
Non-Hazardous
Locations
Hazardous Locations Division 2
Non-hazardous
Location Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Sealing Fitting
Transmitter
F0209.ai
• All wiring shall comply with local installation
requirements and local electrical code.
• In hazardous locations, the cable entry devices
shall be of a certified flameproof type, suitable for
the conditions of use and correctly installed.
• Unused apertures shall be closed with suitable
flameproof certified blanking elements. (The plug
attached is flameproof certified.)
• Wiring connection for output signal code Q (Low
Power type) shall follow the diagram below.
F0219.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5 MINUTES
BEFORE OPENING.
APRÉS POWER-OFF, ATTENDRE 5 MINUTES
AVANT D'OUVRIR.
• WARNING:
WHEN AMBIENT TEMPERATURE ≥ 65°C, USE
THE HEAT-RESISTING CABLES ≥ 90°C.
QUAND LA TEMPÉRATURE AMBIANTE ≥ 65°C,
UTILISEZ DES CÂBLES RÉSISTANTES Á LA
CHALEUR ≥ 90°C.
• Take care not to generate mechanical sparking
when accessing to the instrument and peripheral
devices in a hazardous location.
Note 4. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation and Yokogawa
Corporation of America is prohibited and will void
Canadian Standards Explosionproof Certification.
d. CSA Intrinsically Safe and Explosion-proof
Combination for HART/BRAIN Protocol
Type (Except for EJX9
0A)
EJX/EJA-E Series pressure transmitters with
optional code /CU1 or /V1U1 can be selected the
type of protection (CSA Intrinsically Safe or CSA
Explosionproof) 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
instruction 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.
2.4.3 ATEX Certification
(1) Technical Data
a. ATEX Intrinsically Safe for HART/BRAIN
Protocol Type (Except for EJX9
0A)
Caution for ATEX Intrinsically safe type.
Note 1. EJX/EJA-E Series pressure transmitters with
optional code /KS21 for potentially explosive
atmospheres.
• No. DEKRA 11ATEX0228 X
• Applicable Standard:
EN 60079-0:2012+A11:2013
EN 60079-11:2012
