Yokogawa FVX110 User Manual
Page 24
<2. Handling Cautions>
2-14
IM 01S01C01-01EN
b. IECEx Intrinsically Safe Type
Caution for IECEx Intrinsically safe type.
Note 1. FVX110 Fieldbus Segment Indicator with
optional code /SS25 are applicable for use
in hazardous locations:
• No. IECEx DEK 11.0004 X
• Applicable Standard:
IEC60079-0:2007, IEC60079-11:2006,
IEC60079-26:2006, IEC60079-27:2008
Note 2. Ratings
[Ex ia IIB/IIC T4 Ga]
• Type of Protection: II1G Ex ia IIB/IIC T4 Ga
• Ambient Temperature: –40* to 60ºC
* –15ºC when O-ring material is Fluoro-rubber.
• Degree of Protection of the Enclosure:
IP66 and IP67
• When combined with Trapezoidal output
characteristic FISCO model
IIC or IIB barrier
[Supply/Output circuit (terminals + and –)]
Ui = 17.5 V, Ii = 500 mA, Pi = 5.5 W,
Ci = 3.52 nF, Li = 0
• When combined with Linear characteristic
barrier
[Supply/Output circuit (terminals + and –)]
Ui = 24.0 V, Ii = 250 mA, Pi = 1.2 W,
Ci = 3.52 nF, Li = 0
[Ex ic IIC T4 Gc]
• Type of Protection: II3G Ex ic IIC T4 Gc
• Ambient Temperature: –40* to 60ºC
* –15ºC when O-ring material is Fluoro-rubber.
• Degree of Protection of the Enclosure:
IP66 and IP67
[Supply/Output circuit (terminals + and –)]
Ui = 32.0 V, Ci = 3.52 nF, Li = 0
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 certification.
Non-Hazardous Location
Hazardous Location
F0214.ai
Terminator
Safety Barrier
Field Instruments
Indicator
Field Instruments
+
−
+
−
+
−
Terminator
+
−
+
−
[Intrinsically safe apparatus level of protection “ia”]
F0215.ai
Terminator
General Porpose
Equipment
Terminator
+
−
+
−
[Intrinsically safe apparatus level of protection “ic”]
Non-Hazardous Location
Hazardous Location
Field Instruments
Indicator
Field Instruments
+
−
+
−
+
−