13
Safe Ar
ea
See Note 9
See Note 1
Note 1
Apparatus which is unspecified except that it must not be supplied fr
om nor contain in norma
l
or abnormal conditions a sour
ce of potential with r
espect to earth in excess of 250 v
olts r
.m.s
or 250 volts d.c.
Note 2a
The capacitance and either the inductance or the inductance to r
esistance (L/R) ratio of
the
cable connected between the + and – terminals of the power supply T
ype 4234500/501 and
terminals 1 and 4 of a kathar
ometer T
ype 0065XX must not exceed the following values:
Hazar
dou
s
Ar
ea
See Notes 2 & 3 for cable details
2
3
1
4
2
3
1
4
2
3
1
4
TB5
18
17
TB6
19
20
POWER SUPPL
Y
TYPE 4234 500/501
CERTIFIED [Ex ia Ga] IIC
(–20
°
C
≤
Ta
≤
+55
°
C)
CERTIFICA
TE No
BAS 01 A
TEX 7041
-
+
2
1
3
2
1
3
RS1
RS2
B1
B2
B3
Ga
s
Monitor T
y
pe 6553
–
+
Indicator
eg 4689
I1
–
+
Indicator
eg 4689
I2
4 –
1+
9
10
3 –
2+
KA
THARO
M
ETER
TYPE 0065XXX
CERTIFIED Ex ia IIC T4 Ga
CERTIFICA
TE No
BAS 01 A
TEX 1042
3 –
2+
10
4 –
1+
6 –
9
KA
THARO
M
ETER
TYPE 0065XXX
CERTIFIED Ex ia IIC T4 Ga
(–20ºC ≤ Ta ≤ +55ºC)
(–20ºC ≤ Ta ≤ +55ºC)
CERTIFICA
TE No
BAS 01 A
TEX 1042
Junction boxes (if r
equir
e
d) see note 6.
Location: Hazar
dous Ar
ea or Safe Ar
ea
See Note 1
See Note 1
Junction boxes (if r
e
quir
ed) see note 6.
Location: Hazar
dous or Safe Ar
ea
RV
1
RV
2
Gr
oup
Capacitance
in
μ
F
Inductance
in mH
L/R ratio
in
μ
H/Ohm
IIC
IIB
IIA
7.63
113
999
0.05
0.14
0.37
22
88
177
or
Gr
oup
Capacitance
in
μ
F
Inductance
in mH
L/R ratio
in
μ
H/Ohm
IIC
IIB
IIA
38
999
999
0.40
1.20
3.20
75
225
600
or
Gr
oup
Capacitance
in
μ
F
Inductance
in mH
L/R ratio
in
μ
H/Ohm
IIC
IIB
IIA
40
999
999
0.05
0.16
0.43
52
210
421
or
Gr
oup
Capacitance
in
μ
F
Inductance
in mH
L/R ratio
in
μ
H/Ohm
IIC
IIB
IIA
40
999
999
0.37
1.37
3.28
79
316
632
or
Note 2b
The capacitance and either the inductance or the inductance to r
esistance (L/R) ratio of
the cables
connected between (a) terminals 17 & 18 of the gas monitor type 6553 and terminals 9 & 10
of a kathar
ometer T
y
pe 0065XX, (b) terminals 19 & 20 of the display/contr
ol unit and terminals 9 & 10
of a kathar
ometer T
ype 0065XX.
Note 2c
The capacitance and either the inductance or the inductance to r
esistance (L/R) ratio of the cables
connected between 3 & 4 of barrier B2 plus terminal 4 of barrier B3 of gas monitor type 6553
and terminals 2, 3 & 6 of a kathar
ometer T
ype 0065XX, must not exceed the following values:
See Notes 2 & 3 for cable details
Cir
c
uit A
Cir
cuit B (see Note 8)
Note 3
T
he cable may be separate cables or may be installed as separate cir
Note 2d
The capacitance and either the inductance or the inductance to resistance (L/R) ratio of the cables connected
between terminals 3 & 4 of barrier B1 of gas monitor type 6553 and terminals 2 & 3 of Katharometer type 0065XX,
must not exceed the following values:
cuits within a type ‘A
’ or a type ‘B’
multicor
e
cable as defined in EN60079 - 14: 2008, 12.2.28 (latest edition) subject to the following:
a.
Each cir
cuit shall be individually scr
e
ened within a type ‘A
’ multicor
e cable.
b.
The peak voltage of any other cir
cuit within a type ‘B
’ multicor
e cable must not exceed 60 volts.
Note 4
The installation must comply with national r
equir
e
ments (e.g. within the UK the standard EN60079-14: (latest edition) is
used).
Note 5
The system must be marked with a durable label. The label should appear on or adjacent to the principal
item of electrical apparatus in the system or at the interface between the intrinsically safe and non-
intrinsically safe cir
c
uits.
This marking shall include the wor
d SYST or SYSTE
M
, e.g.
‘BAS SYSTE
M
No Ex 01E2044’ or ‘BAS No Ex 01E2044 SYST’
Note 6
A
junction box, if used, must satisfy the r
equir
e
ments of Clauses 6.1 and 6.3.1 of EN60079:11 (latest edition).
Note 7
C
ir
cuit A or Cir
c
uit B may be omitted.
Note 8
C
ir
cuit B may be identical to Cir
c
uit A.
Note 9
This item may or may not be fitted.
POWER SUPPL
Y
TYPE 4234 500/501
CERTIFIED [Ex ia Ga] IIC
(–20
°
C
≤
Ta
≤
+55
°
C)
CERTIFICA
TE No
BAS 01 A
TEX 7041
-
+
See Note 10
Note 10
Zener barriers (B1, B2 & B3)
M
TL 7755ac BAS 01 ATEX 7217 & IECEx BAS 04.0025.
Display/Control Unit
M
odel 6553
CERTIFIED [Ex ia Ga] IIC
(–20ºC ≤ Ta ≤ +40ºC)
CERT No BAS 01 ATEX 7043
& IECEx BAS 04.0025
2a
2b
2d
2c
2b
2a
I.S. Earth
I.S. Earth
5.1
Electrical Interconnections – Fig. 5.1, 5.2, 5.3 and 5.4
5
ELECTRICAL INSTALLATION
Fig. 5.1 AK101 System Diagram
Summary of Contents for 006539-960J
Page 49: ...47 14 SPECIFICATION d d ...
Page 50: ...48 14 SPECIFICATION DS AK100 EN Rev N d d d d ...
Page 51: ...Notes Sales Service ...