<2. Handling Cautions>
9
IM 01C22A01-01E
• Temperature Class: T6, T5, and T4
• Process Temperature: 85°C (T6), 100°C (T5), and
120°C (T4)
• Ambient Temperature: –40 to 80°C
• Supply Voltage: 42 V dc max.
• Output Signal: 4 to 20 mA
Note 2. Wiring
• All wiring shall comply with Canadian Electrical Code
Part I and Local Electrical Codes.
• In hazardous location, wiring shall be in conduit as
shown in the fi gure.
CAUTION: SEAL ALL CONDUITS WITHIN 50
cm OF THE ENCLOSURE.
UN SCELLEMENT DOIT ÊTRE INSTALLÉ À
MOINS DE 50 cm DU BÎTIER.
• When installed in Division 2, “SEALS NOT
REQUIRED.”
Note 3. Operation
• Keep the “CAUTION” label attached to the transmitter.
CAUTION: OPEN CIRCUIT BEFORE
REMOVING COVER.
OUVRIR LE CIRCUIT AVANT D´NLEVER LE
COUVERCLE.
• 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 modifi cation 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 Certifi cation.
Non-hazardous
Location
Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Non-Hazardous
Locations
Hazardous Locations Division 1
Non-Hazardous
Locations
Hazardous Locations Division 2
50 cm Max.
Sealing Fitting
Conduit
EJA Series
Non-hazardous
Location
Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Sealing Fitting
EJA Series
F0206.ai
c. CSA Intrinsically Safe Type/CSA
Explosionproof Type
Model EJA Series pressure transmitters with optional
code /CU1 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 IECEx Certifi cation
Model EJA Series differential, gauge, and absolute
pressure transmitters with optional code /SU2 can
be selected the type of protection (IECEx Intrinsically
Safe/type n or fl ameproof) 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.
a. IECEx Intrinsically Safe Type / type n
Caution for IECEx Intrinsically safe and type n.
Note 1. Model EJA Series differential, gauge, and
absolute pressure transmitters with optional
code /SU2 are applicable for use in hazardous
locations.
• No. IECEx KEM 06.0007X
• Applicable Standard: IEC 60079-0:2004,
IEC 60079-11:1999, IEC 60079-15:2005,
IEC 60079-26:2004
• Type of Protection and Marking Code: Ex ia IIC T4,
Ex nL IIC T4
• Ambient Temperature :–40 to 60°C
• Max. Process Temp.: 120°C
• Enclosure: IP67
Note 2. Entity Parameters
• Intrinsically safe ratings are as follows:
Maximum Input Voltage (Ui) = 30 V
Maximum Input Current (Ii) = 165 mA
Maximum Input Power (Pi) = 0.9 W
Maximum Internal Capacitance (Ci) = 22.5 nF
Maximum Internal Inductance (Li) = 730 μH
Handling Cautions
2
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