<2. Handling Cautions>
2-6
IM 01C25C01-01E
Note 2. Wiring
• All wiring shall comply with National Electrical
Code ANSI/NFPA70 and Local Electrical
Codes.
• When installed in Division 1, “FACTORY
SEALED, CONDUIT SEAL NOT
REQUIRED.”
• Wiring connection for output signal code Q
(Low Power type) shall follow the diagram
below.
F0211.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–
Note 3. Operation
• Keep the “WARNING” nameplate attached to
the transmitter.
WARNING: OPEN CIRCUIT BEFORE
REMOVING COVER. FACTORY SEALED,
CONDUIT SEAL NOT REQUIRED.
INSTALL IN ACCORDANCE WITH THE
USERS MANUAL IM 01C25.
• 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 is prohibited and will void
Factory Mutual Explosionproof Approval.
c. FM Intrinsically Safe Type/FM
Explosionproof Type
EJX/EJA-E Series pressure transmitters with
optional code /FU1 or /V1U1 can be selected
the type of protection (FM Intrinsically Safe
or FM 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, cross out
unnecessary markings on the label other
than the selected type of protection when
the transmitter is installed.
2.9.2 CSA Certification
a. CSA Intrinsically Safe Type
Caution for CSA Intrinsically safe and
nonincendive type. (Following contents refer to
“DOC No. ICS013-A13”)
Note 1. EJX/EJA-E Series differential, gauge,
and absolute pressure transmitters with
optional code /CS1 are applicable for use
in hazardous locations
Certificate: 1606623
Applicable Standard:
C22.2 No.0
C22.2 No.94
C22.2 No.157
C22.2 No.213
C22.2 No.61010-1
C22.2 No.61010-2-030
CAN/CSA-C22.2 60079-0:07
CAN/CSA-E60079-11:02
CAN/CSA-E60079-15:02
CAN/CSA-C22.2 No.60529
ANSI/ISA-12.27.01
