Iecex Certification - YOKOGAWA DpharpEJX vigilantplant EJX110 User Manual

2.9.4 IECEx Certification

Model EJX Series pressure transmitters with
optional code /SU2 can be selected the type of
protection (IECEx Intrinsically Safe/type n or
flameproof) 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 EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /SU2 are applicable for use
in hazardous locations
• No. IECEx CSA 05.0005
• Applicable Standard: IEC 60079-0:2000,
IEC 60079-11:1999, IEC 60079-15:2001
• Ex ia IIC T4, Ex nL IIC T4
• Ambient Temperature :–50 to 60 C
• Max. Process Temp.: 120 C
• Enclosure: IP66 and IP67
Note 2. Entity Parameters
• Intrinsically safe ratings are as follows:
Maximum Input Voltage (Vmax/Ui) = 30 V
Maximum Input Current (Imax/Ii) = 200 mA
Maximum Input Power (Pmax/Pi) = 0.9 W
Maximum Internal Capacitance (Ci) = 10 nF
Maximum Internal Inductance (Li) = 0 H
• Type "n" ratings are as follows:
Maximum Input Voltage (Vmax/Ui) = 30 V
Maximum Internal Capacitance (Ci) = 10 nF
Maximum Internal Inductance (Li) = 0 H
• Installation Requirements
Uo Ui, Io Ii, Po
Co Ci + Ccable, Lo
Voc Vmax, Isc
Ca Ci + Ccable, La
Uo, Io, Po, Co, Lo, Voc, Isc, Ca and La are
parameters of barrier.
Note 3. Installation
• In any safety barreir used output current must be
limited by a resistor 'R' such that Io=Uo/R.
• The safety barrier must be IECEx certified.
Pi,
Li + Lcable
Imax,
Li + Lcable
• Input voltage of the safety barrier must be less
than 250 Vrms/Vdc.
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation and will void
IECEx Intrinsically safe and type n certification.
[Intrinsically Safe]
Hazardous Location
Group IIC, Zone 0
EJX Series Pressure
Transmitters
+
–
Supply
Hazardous Location
Group IIC, Zone 2
EJX Series Pressure EJX Series Pressure
Transmitters Transmitters
+
Supply
–
b. IECEx Flameproof Type
Caution for IECEx flameproof type.
Note 1. Model EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /SF2 and /SU2 are appli-
cable for use in hazardous locations:
• No. IECEx CSA 05.0002
• Applicable Standard: IEC60079-0:2000,
IEC60079-1:2001
• Flameproof for Zone 1, Ex d IIC T6...T4
• Enclosure: IP66 and 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 70 C (T6)
• Supply Voltage: 42 V dc max.
• Output Signal: 4 to 20 mA dc
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.
2-10
2. HANDLING CAUTIONS
Nonhazardous Location
IECEx certified
Safety Barrier
+ +
– –
[type n]
Nonhazardous Location
IECEx Certified
Equipment [nL]
Not Use
Safety Barrier
IM 01C25B01-01E
General
Purpose
Equipment
+
–
F0213-1.EPS
+
–
F0213-2.EPS