<2. Handling Cautions>
2-14
IM 01C25K01-01E
c. IECEx Intrinsically Safe Type / type n
Caution for IECEx Intrinsically safe and type n.
Note 1. 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/IP67
Note 2. Electrical Data
• 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 µH
• Type "n" ratings are as follows:
Maximum Input Voltage (Vmax/Ui) = 30 V
Maximum Internal Capacitance (Ci) = 10 nF
Maximum Internal Inductance (Li) = 0 µH
• Installation Requirements
Uo ≤ Ui, Io ≤ Ii, Po ≤ Pi,
Co ≥ Ci + Ccable, Lo ≥ Li + Lcable
Voc ≤ Vmax, Isc ≤ Imax,
Ca ≥ Ci + Ccable, La ≥ Li + Lcable
Uo, Io, Po, Co, Lo, Voc, Isc, Ca and La are
parameters of barrier.
Note 3. Installation
•
In any safety barrier used output current
must be limited by a resistor 'R' such that
Io=Uo/R.
• The safety barrier must be IECEx certified.
•
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.
F0210-1.ai
Pressure Transmitters
IECEx certified
Safety Barrier
Supply
Hazardous Location
Nonhazardous Location
General
Purpose
Equipment
+
–
+
–
+
–
+
–
[Intrinsically Safe]
Group IIC, Zone 0
F0210-2.ai
Pressure Transmitters
Supply
Hazardous Location
Nonhazardous Location
+
–
+
–
Not Use
Safety Barrier
[type n]
IECEx Certified
Equipment [nL]
Group IIC, Zone 2
d. IECEx Flameproof Type
Caution for IECEx flameproof type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /SF2, /SU2 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)
