KROHNE M10 User Manual
Supplementary Installation and
Operating Instructions
Variable-area flowmeters H250/H54
Signal converter M10
of hazardous-duty
design EEx d
PTB 01 ATEX 1154
©
KROHNE 11/2002 7.02247.22.00
GR
Stand: 08/2000
ANL. A.1 EG-Baumusterprüfbescheinigung PTB 00 ATEX 2063
Variable area flowmeters
Vortex flowmeters
Flow controllers
Electromagnetic flowmeters
Ultrasonic flowmeters
Mass flowmeters
Level measuring instruments
Communications engineering
Engineering systems & solutions
Switches, counters, displays and recorders
Heat metering
Pressure and temperature
Contents
1
General safety information .................................................................................................. 3
2 Safety-relevant type code .................................................................................................... 4
3 Main safety-relevant characteristics ................................................................................... 4
3.1 Process products .................................................................................................................... 4
3.2 Category / Zone allocation ......................................................................................................4
3.3 Type of protection ................................................................................................................... 4
3.4 Special lock............................................................................................................................. 4
3.5 Cable entries / sealing plugs...................................................................................................5
3.6 Power supply .......................................................................................................................... 5
3.7 I/O functions............................................................................................................................ 5
3.8 Ambient temperatures / temperature classes ......................................................................... 5
4 Marking.................................................................................................................................. 6
5 Mounting and installation .................................................................................................... 6
5.1 Electrical connection............................................................................................................... 7
5.1.1 General................................................................................................................................... 7
5.1.2 Terminal compartment............................................................................................................7
5.1.3 Connecting cables .................................................................................................................. 7
5.1.4 Connection of power and I/O function..................................................................................... 7
6 Initial startup ......................................................................................................................... 9
7 Operation............................................................................................................................... 9
8 Preventive maintenance....................................................................................................... 9
8.1 Maintenance ........................................................................................................................... 9
8.2 Dismantling ........................................................................................................................... 10
8.2.1 General................................................................................................................................. 10
8.2.2 Replacement of signal converter / display ............................................................................ 10
8.2.3 Replacement of complete device .......................................................................................... 10
Attachment A.1 EC Type Test Certificate PTB 01 ATEX 1154................................................. 11
Attachment A.2 Declaration of Conformity ............................................................................... 19
If you need to return a device for testing or repair to KROHNE.............................................. 20
2
Signal converter M10-EEx d – Supplementary instructions 11/2002
1 General safety information
These additional “Ex“ Instructions apply to the hazardous-duty versions of H..../..../M10-EEx
variable-area flowmeters. They are supplementary to the Installation and Operating Instructions for
the non-hazardous-duty versions.
The information given in these Instructions contains only the data relevant to explosion protection.
The technical details given in the Installation and Operating Instructions for the non-hazardousduty version apply unchanged unless excluded or superseded by these Instructions.
In compliance with European Directive 94/9 EG (ATEX 100a), variable-area flowmeters of the
H..../..../M10-EEx series are certified in conformity with European Standards EN 50xxx for use in
hazardous areas under
PTB 01 ATEX 1154
by the Physikalisch-Technische Bundesanstalt (PTB).
This certification together with its boundary conditions is required to be observed without fail (see
Attachment A.1 ”EC type test certificate“).
IMPORTANT!
Mounting, installation, (initial) startup and maintenance work may only be carried out
by personnel who have received "training in explosion protection"!
Maintenance work of a safety-relevant nature within the meaning of explosion protection
may only be carried out by the manufacturer, his authorized representative or under the
supervision of authorized inspectors.
Note!
For processes involving combustible and highly flammable products, easily removable
threaded connections to DIN 11851; SMS; TriClamp (e.g. DIN 32676; ISO 2852 Clamp);
are not allowed.
11/2002
Signal converter M10-EEx d – Supplementary instructions 3
2 Safety-relevant type code
The safety-relevant type code is made up of the following elements:
(1)
H .... / .... / M10 - E Ex
1 2 3 4 5
1 : Model series : measuring section
H54
H250
H250C
2 : Material of wetted parts
RR
HC
Ti
PTFE
3 : Model series : indicator section
M10
4 : Territorial application of the approval
E:
5 : Safety function
Ex:
(1)
places for items not needed may be omitted from the type code
: measuring section, Series H54
: measuring section, Series H250
: measuring section, Series H250C
: stainless steel
: Hastelloy
: titanium
: PTFE, ceramics
: signal converter M10
Europe (EC, CENELEC area of validity)
explosion-protected electrical equipment
3 Main safety-relevant characteristics
The H..../..../M10-EEx variable-area flowmeter consists of a combination of signal converter and
measuring tube. The main characteristics of the explosion-protected version are described below.
3.1 Process products
Flammable products are allowed provided they are not present in potentially explosive form.
3.2 Category / Zone allocation
The H..../..../M10-EEx variable-area flowmeter is basically designed in Category 2 for use in
Zone 1.
3.3 Type of protection
The H..../. .../M10-EEx variable-area flowmeters bear the following marking: EEx d IIC T6
3.4 Special lock
The sealing covers of the electronics compartment are secured by a special lock. The locking
screw requires use of an Allen key (3 mm size).
4
Signal converter M10-EEx d – Supplementary instructions 11/2002
3.5 Cable entries / sealing plugs
Cable entries and sealing plugs must, in ready-to-operate condition, satisfy the IP Class of
Protection IP67 and each be separately certified in conformity with EN 50 018. Any requirements
specified in the test certificates of the components shall be observed.
3.6 Power supply
Type H..../..../M10-EEx variable-area flowmeters do not require any separate power source. The
necessary supply is obtained via the current output.
3.7 I/O functions
When connecting the I/O interfaces of the H..../..../M10-EEx variable-area flowmeters, the
following values need to be taken into account.
I/O function
(1)
Nominal values of the non- Added restriction
certified receiver instrument
See Standard Installation See Standard Installation Supply power for receiver
and Operating Instructions and Operating Instructions instruments max. 253V
(1)
Only for connection to circuits with “functional extra-low voltage with protective separation
(PELV)”
Peak values U
≤ 25V ; UDC ≤ 60V
AC
3.8 Ambient temperatures / temperature classes
The permissible ambient temperature for the variable-area flowmeters is limited to a value
≤ 60 °C.
of T
amb
With regard to maximum surface temperatures, variable-area flowmeters are exposed to three
heat sources:
Ambient temperature T
•
Electric power loss Pv
•
Process temperature Tm
•
Accordingly, at a given maximum ambient temperature (T
loss (P
≤ 3 W), we obtain maximum surface temperatures as a factor of the process temperature.
v
For that reason, the devices are not allocated to any specific temperature class; rather, the
temperature class of the devices is a function of the actual process temperature and ambient
temperature, see table below.
Temperature
Ambient temperature
class
T6 -40 … +60 85 85 85
T5 -40 … +50 100 100 100
-40 … +60
T4 -40 … +50 135 135 135
-40 … +60
T3 ... T1 -40 … +40
-40 … +50
-40 … +60
Table 1
Max. permissible process temperatures
The cable glands and line entries must have the same degree of thermal
stability as the connecting cable
amb
in °C
≤ 60°C) and a given maximum power
amb
Max. permissible process
permanent temperature
Wiring Wiring Wiring
70°C 80°C 90°C
85 100 100
85 135 135
180 200 200
135 190 200
85 145 200
11/2002
Signal converter M10-EEx d – Supplementary instructions 5
4 Marking
The variable-area flowmeters are identified by an adhesive label or metal plate attached to the
signal converter. The type code is explained in Section 2.
H..../..../M10- EEx, Category 2G
Manufacturer Year of manufacture
Type
Approval
information
Technical
data of
circuits
Safety
info
5 Mounting and installation
Mounting and installation to be carried out in conformity with the valid installation standards for
hazardous areas (e.g. EN 60079-14 / VDE 0165) by specialist personnel trained in explosion
protection.
The information given in the standard Installation and Operating Instructions, the Supplementary
Installation and Operating Instructions (Ex) and also in the EC type test certificate (see Attachment
A.1) must be observed without fail.
Verify that the variable-area flowmeter is suitable for the application in question by comparing
the details on the nameplate with those in Section 3.2 (Categories / Zone allocation), Section 2
(Type code) and Section 4 (Marking).
When installing, please pay special attention to the following points.
6
Signal converter M10-EEx d – Supplementary instructions 11/2002
Loading...