Fujimoto FKK 4 Satellite Radio User Manual


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67
Figure 1. FCX-A/C Series transmitter, Intrinsically Safe Installation for BASEEFA
Notes:
1. The electrical circuit in the hazardous area must be capable of withstanding an A.C. test
voltage of 500 volts rms to earth of frame of the apparatus for one minute.
2. The capacitance and inductance of the hazardous area cables must not exceed the values
shown in Table 1.
3. The installation, including barrier earthing arrengements, must comply with the installation
requirements of the country of use.
e.g. in the U.K., BS 5345: Part 4:1977
4. Any shunt zenor diode safety barrier certified by an EEC Approved Body to [EEx ia] IIC
having the following maximum parameters;
Uz = 28 Vdc, Imax;out = 93 mAdc, Wmax;out = 0.65 W
The output current of the barrier must be limited by a resistor “R” that;
Imax; out = Uz / R
CK+
CK–
+
–
+
–
FXE
CK+
CK–
+
–
FXE
CK+
CK–
Shunt Bar
+
–
FXE
CK+
CK–
+
–
FXE
FCX-A/C Series Transmitter
BAS No. Ex 95D2444
EEx ia IIC T4 (Ta
<
85°C)
EEx ia IIC T5 (Ta
<
40°C)
FXW
Hand Held Communicator
BAS No. Ex 90C2370X
EEx ia IIC T3 (Ta
<
85°C)
EEx ia IIC T4 (Ta
<
40°C)
=
=
FXE
Field Indicator
BAS No. Ex 93C2154
EEx ia IIC T4 (Ta
<
85°C)
EEx ia IIC T5 (Ta
<
50°C)
N = (n
1
+ n
2
)
<
3 (for IIC, IIB, IIA)
=
=
=
=
=
The HART Communicator
BAS No. Ex 92C2516
Hazardous Area Non-hazardous Area
or
Measurement Technology Ltd.
Communicator
MTL611 BAS No. Ex 91C2323
CNF61 BAS No. Ex 91C2071
or
Field Indicator (FXE)
n
1
n
2
Field Indicator (FXE)
CK+
CK–
+
–
FXE
CK+
CK–
CK+
CK–
+
–
FXE
BARRIER
(See Note 4)
NON-HAZARDOUS AREA APPARATUS
FCX-A/C Series Transmitter System
SYST BAS No. EX 95D2445
Fuji Electric Co., Ltd.
System Label
Which is unspecified except that it must
not be supplied from nor contain under
normal or abnormal conditions, a source 
of potential with respect to earth in excess
of 250 volts RMS or 250 volts DC.
(See Note 3)
Ex
Table 1: Cable Parameters
Capacitance [µF]
<
3
0.085
0.265
0.715
IIC
IIB
IIA
Group
N
<
3
1.6
5.6
15.6
<
3
55
165
440
Inductance [mH] or L/R Ratio [µH/Ω]
==
N: Number of field indicator (FXE)
<
3
=
=
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