KROHNE VA40ATEX User Manual
Supplementary instructions
Supplementary instructions
VA40
VA40
VA40VA40
Variable area flowmeter
Equipment category II 2 G with electrical components
Supplementary instructions Supplementary instructions
© KROHNE 06/2013 - 4002262402 - MA VA40-Ex-II2G-AD R02 en
CONTENTS
VA40
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EC conformity ................................................................................................................... 3
1.3 Security information......................................................................................................... 3
2 Device description 4
2.1 Device description ............................................................................................................ 4
2.2 Description code............................................................................................................... 4
2.3 Marking............................................................................................................................. 5
2.4 Flammable products ........................................................................................................ 7
2.5 Equipment category .........................................................................................................7
2.6 Protection types................................................................................................................ 7
2.7 Ambient temperature / temperature classes.................................................................. 8
2.8 Electrical data................................................................................................................... 9
3 Installation 10
3.1 Installation...................................................................................................................... 10
4 Electrical connections 11
4.1 General notes ................................................................................................................. 11
4.2 Grounding and equipotential bonding............................................................................ 11
5 Operation 12
5.1 Start-up........................................................................................................................... 12
5.2 Operation ........................................................................................................................ 12
5.3 Electrostatic charge .......................................................................................................12
6 Service 13
6.1 Maintenance ................................................................................................................... 13
6.2 Dismantling .................................................................................................................... 13
7 Notes 14
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VA40
1.1 General notes
These additional instructions apply to explosion-protected versions of the VA40/./../..-Ex variable
area flowmeter with the designation II 2 G. They complete the installation and operating
instructions for the non-explosion protected versions.
The information given in these instructions contains only the data relevant to category 2
explosion protection. The technical details given in the installation and operation instructions for
the non-explosion protected versions apply unchanged unless excluded or superseded by these
instructions.
1.2 EC conformity
The manufacturer declares with the EC Declaration of Conformity on his own responsibility
conformity with the protection goals of Directive 94/9/EC for use in hazardous areas with gas.
The EC Type Test Certificate of the Physikalisch Technische Bundesanstalt (PTB) forms the basis
of the EC Declaration of Conformity: Conformity with the harmonised standards was verified
according to EN 60079-0:2009 and EN 60079-11:2012.
SAFETY INSTRUCTIONS 1
The "X" after the certificate number refers to special conditions for safe use of the device, which
have been listed in these Instructions.
The EC type test certificate may be downloaded from the manufacturer's website as needed.
1.3 Security information
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
CAUTION!
The operator respectively his agent is responsible to follow further standards, directives or laws
if required due to operating conditions or place of installation. This applies particularly for the
use of easy detachable process connections such as SMS or Clamp when measuring flammable
mediums.
PTB 05 ATEX 2026 X
PTB 05 ATEX 2026 X
PTB 05 ATEX 2026 XPTB 05 ATEX 2026 X
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2 DEVICE DESCRIPTION
2.1 Device description
Variable area flowmeters measure and display the volume flow of flammable and nonflammable gases and liquids. Up to two separately adjustable electrical limit switches can be
mounted to the on-site display.
2.2 Description code
The safety description code * consists of the following elements:
1 Type of connection
V - Screw connection
S - Tube socket
F - Flange connection
A - Aseptic connection, conforming to food standards
VA40
2 Material of the connection
R - Stainless steel 1.4404 (316 L)
ST - Steel, electroplated and chromized
PV - Platics PVDF
3 Limit switches
K1 - one limit switch
K2 - two limit switches
* positions which are not needed are omitted (no blank positions)
Safety description code TG21:
1 Inserting limit switch
2 Version 21
Safety description code MS14:
1 Magnetic switch
2 Reed cartridge 14
3
without Limit switch with connected cable
A - Limit switch with terminal box (standard)
4
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VA40
2.3 Marking
The marking of the complete device is shown in the following nameplate. The variable-area
flowmeter is marked on the roundly housing.
1 Type of meter
2 Manufacturer
3 Website
4 Appointed ATEX body
5 Pay regard to manual
6 Ex-data
7 Serial number
8 Year of manufacture
9 PED-data
10 Design data: Temperature & pressure rating
DEVICE DESCRIPTION 2
Marking Limit switch TG21
1 Type
2 Manufacturer
3 Ex data
4 KROHNE website
5 Built-in components
6 Observe Operation and Installation manual
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