Table of Contents
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1 INTRODUCTION
Note. CO
is refered to throughout this manual as the
2
purge gas. However, other gases such as Argon or
Nitrogen may be used instead.
Caution. This operating manual applies only to those
systems that have been designed and constructed to
the standards specified in the schedules of the ATEX
certificates listed. The separate units to which these
certificates apply are clearly identifiable by model
numbers and the data on the identification and ATEX
certification labels fixed to them. Other combinations of
similar equipment built to any earlier specifications are
not covered by BASEEFA certificate number BAS Ex
01E2044. This is particularly important where new
replacement units are to be incorporated into existing
installations covered by any earlier certification
standards. If in any doubt about the installation of
particular combinations of certified equipment, contact
the Company for advice before proceeding.
It is essential that units are installed strictly in
accordance with the appropriate standards for
electrical equipment for use in flammable atmospheres.
Any deviation from the specified installation conditions,
or any unauthorized repairs or adjustments can
invalidate the safety assurances given by the
certification of the unit.
The ultimate responsibility for any particular installation lies with
the installing user/contractor.
This manual gives the installation, operating and maintenance
information for the Company's range of Models AK101 and
AK104 Intrinsically Safe Gas Analyzer Systems, normally used
with hydrogen cooled electrical power generators.
A complete AK10x Analyzer system uses a combination of three
different units. Each unit is certified independently for use as part
of an intrinsically safe system to meet the standards of the ATEX
directive 9/94/EC for use in association with Group IIC
(hydrogen) hazardous atmospheres in accordance with the
following standards:
0
0
6
5
4
2
3
4
6
5
5
3
0
0
6
5
A
K
1
0
6
5
5
3
E
N
6
0
0
7
9
–
0
K
a
h t
a
&
p
u
g r
e
E
N
6
0
0
7
9
–
1
1
4
2
3
4
A
K
1
0
6
5
5
3
K
a
h t
a
4
2
3
4
*
C
a
n
b
e
m
o
u
n
e t
d
n i
a
c
u
2
3
9
&
0
0
6
5
4
8
K
a
h t
a
o r
m
t e
r e
5
0
0
5 /
0
1
P
o
w
r e
S
u
p
p
y l
U
t i n
D
s i
l p
y a
U
t i n
3
9
&
0
0
6
5
4
8
K
a
h t
a
o r
m
t e
r e
* 1
c
o
m
p
s i r
n i
: g
d
s i
l p
y a
u
t i n
x (
) 1
o r
m
t e
r e
u
n
s t i
-
p
r u
y t i
x (
) 1
g
s a
c
o
m
b
n i
e
d
x (
) 1
P
S
U
x (
) 2
* 4
c
o
m
p
s i r
n i
: g
d
s i
l p
y a
u
t i n
x (
) 1
o r
m
t e
r e
u
n
s t i
-
p
r u
y t i
P
S
U
x (
) 1
b
c i
l a
s a
a
n
o
p
o i t
. n
The different units of the system are:
1) Model 6553 Display Unit, available in several variants. The
inputs to the unit are certified to code [Ex ia Ga] IIC (–20 C
Ta
+40 C) under BAS 01 ATEX 7043 certificate with the
unit installed in the safe area only.
2) Model 006539-960K (or J) and 006548-001 Katharometer
Units that form part of an intrinsically safe Model 006540-
203 and 006548-000 Katharometer Analyzer Panel. These
units are certified to code Ex ia IIC T4 Ga (–20 C
+55 C) under BAS 01 ATEX 1042 certificate for installation
in the
hazardous
3) Model 4234 500 and 4234 501 constant current Power
Supply Unit provides the supply for one Katharometer Unit.
These power supply units have their output certified to code
[Ex ia Ga] IIC (–20 C
7041 certificate for installation in the safe area only.
If further information or assistance is required contact our
specialist staff at one of the addresses shown on the back cover
of this manual. Specialist training courses can also be arranged
at our Training Centre.
U
n
s t i
U
n
s t i
a
n
d
area (ZONE 0).
Ta
+55 C) under BAS 01 ATEX
Ta
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