<2. Handling Cautions>
2-14
IM 01C25B01-01E
• Ex ic IIC T4 Gc
• Ambient Temperature: –30* to 60°C
* -15 °C when /HE is specified.
• Max. Process Temp.: 120°C
• IP Code: IP66
• Overvoltage Category: I
Note 2. Electrical Data
Maximum Input Voltage (Ui) = 30 V
Maximum Internal Capacitance (Ci) = 27.6 nF
Maximum Internal Inductance (Li) = 0 μH
Note 3. Installation
• The pressure transmitter is allowed to
be installed in “nL” systems, on condition
that the output parameters of “nL” source
(associated energy-limited apparatus)
are suitable to the above mentioned input
parameters of the pressure transmitter and
the cable parameters.
• Cable glands, adapters and/or blanking
elements shall be of Ex “n”, Ex “e” or Ex
“d” and shall be installed so as to maintain
the specified degree of protection of the
equipment.
• The instrument modification or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void IECEx
certification.
F0217.ai
EJX/EJA-E Series
Pressure Transmitters
Associated apparatus
Supply
Hazardous Location
Nonhazardous Location
+
–
+
–
[Ex ic]
Note 4. Specific Condition of Use
WARNING
• Electrostatic charge may cause an explosion
hazard. Avoid any actions that cause the
generation of electrostatic charge, such as
rubbing with a dry cloth on coating face of
the product.
• The apparatus is not capable of dielectric
strength tests required by IEC 60079-11.
This must be taken into account when
installing the apparatus.
c. IECEx Flameproof Type
Caution for IECEx flameproof type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /SF2 or /SU21 are
applicable for use in hazardous locations:
• No. IECEx CSA 07.0008
• Applicable Standard: IEC60079-0:2011,
IEC60079-1:2007-4
• Flameproof for Zone 1, Ex d IIC T6...T4 Gb
• Enclosure: IP66/IP67
• Maximum Process Temperature: 120°C (T4),
100°C (T5), 85°C (T6)
• Ambient Temperature: –50 to 75°C (T4),
–50 to 80°C (T5), –50 to 75°C (T6)
• 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)
• Output Signal: 4 to 20 mA dc
15 mA (F
OUNDATION
Fieldbus and
PROFIBUS PA type)
1 to 5 V (Low Power type)
Note 2. Wiring
• 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.
• Wiring connection for output signal code Q
(Low Power type) shall follow the diagram
below.
F0214.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–
