YOKOGAWA Dpharp EJX110A, Installation Manual

Page: 26 / 57

<2. Handling Cautions>
25
IM 01C25A01-01E
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.
F0237.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 Intrinsically Safe Ex ia for Fieldbus
Type (Except for EJX9

0A)
Caution for IECEx Intrinsically safe Ex ia.
Note 1. EJX/EJA-E Series pressure transmitters with
optional code /SS26 are applicable for use in
hazardous locations.
• No. IECEx DEK 12.0016X
• Applicable Standard: IEC 60079-0:2011,
IEC 60079-11:2011, IEC 60079-26: 2006
• Ex ia IIC/IIB T4 Ga
• Ambient Temperature: –40 to 60°C
• Max. Process Temp.: 120°C
Note 2. Electrical Data
• Intrinsically safe ratings are as follows:
[Entity]
Maximum Input Voltage (Ui) = 24 V
Maximum Input Current (Ii) = 250 mA
Maximum Input Power (Pi) = 1.2 W
Maximum Internal Capacitance (Ci) = 3.52 nF
Maximum Internal Inductance (Li) = 0 μH
[FISCO IIC]
Maximum Input Voltage (Ui) = 17.5 V
Maximum Input Current (Ii) = 380 mA
Maximum Input Power (Pi) = 5.32 W
Maximum Internal Capacitance (Ci) = 3.52 nF
Maximum Internal Inductance (Li) = 0 μH
[FISCO IIB]
Maximum Input Voltage (Ui) = 17.5 V
Maximum Input Current (Ii) = 460 mA
Maximum Input Power (Pi) = 5.32 W
Maximum Internal Capacitance (Ci) = 3.52 nF
Maximum Internal Inductance (Li) = 0 μH
Note 3. Installation
Non-Hazardous Location
Hazardous Location
F0238.ai
Terminator
Safety Barrier
Field Instruments
Pressure
Transmitter
Field Instruments
+
–
+
–
+
–
Terminator
+
–
+
–
[Ex ia]
• In the rating 1(*1), the output current of the barrier
must be limited by a resistor ‘Ra’ such that Io = Uo/
Ra.
• In the rating 2(*2), the output of the barrier must be
the characteristics of the trapezoid or the rectangle
and this transmitter can be connected to Fieldbus
equipment which are in according to the FISCO
model.
• The terminators may be built in by a barrier.
• More than one transmitter may be connected to
the power supply line.
• The terminator and the safety barrier shall be
certified.