This additional instruction applies to explosion-protected versions of vortex flowmeters with
protection type flameproof enclosure "d", increased safety "e" and equipment dust-ignition
protection through enclosure "t", equipment category II 2 G and II 2 D, EPL Gb and EPL Db.
It completes the standard manual for the non-explosion protected versions.
The information given in this instruction contains only the data relevant to explosion protection
of category 2. The technical details given in the manual for the non-explosion protected versions
remain unchanged unless they will be excluded or replaced by this instruction.
1.2 EU conformity
The manufacturer declares with the EU declaration of conformity on his own responsibility
conformity with the protection goals of directive 2014/34/EU for use in hazardous areas with gas
and dust.
The EU declaration of conformity for the equipment category II 2 G and II 2 D is based on the EU
type examination certificate:
SAFETY INSTRUCTIONS
1
KIWA 16 ATEX 0045X
KIWA 16 ATEX 0045X
KIWA 16 ATEX 0045XKIWA 16 ATEX 0045X
The "X" after the certificate number refers to special conditions for safe use of the device, which
have been listed in these instructions.
If needed the EU type examination certificate can be downloaded from the manufacturer's
website.
1.3 Approval according to the IECEx scheme
Conformity for use in hazardous areas with gas and dust was tested in accordance with the
"IECEx Certification Scheme for Explosive Atmospheres" according to
IEC 60079-0:2011, IEC 60079-1:2014, IEC 60079-7:2006, IEC 60079-11:2011 and
IEC 60079-31:2013.
The number of the IECEx certificate is:
IECEx KIWA 16.0022X
IECEx KIWA 16.0022X
IECEx KIWA 16.0022XIECEx KIWA 16.0022X
The "X" after the certificate number refers to special conditions for safe use of the device, which
have been listed in these instructions.
If needed, the IEC certificate can be downloaded from the manufacturer's website.
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SAFETY INSTRUCTIONS
1.4 Safety instructions
If these instructions are not followed, there is a risk of explosion.
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
CAUTION!
Operating conditions and place of installation may require compliance with additional standards,
directives or laws. The responsibility for compliance rests solely with the operator or his agent.
SITRANS FX330
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SITRANS FX330
2.1 Device description
Vortex flowmeters measure and display the flow of flammable and non-flammable gases and
liquids. The signal converter includes either a 4...20 mA signal output with optional HART
communication or a bus connection. There are bus connections available according to the FISCO
model for connecting to the Foundation Fieldbus or Profibus PA. Signal converters with signal
output have a separate binary output and a separate current input.
The SITRANS FX330 remote version consists of the SITRANS FXS300 flow sensor and the
SITRANS FXT030 signal converter.
2.2 Marking
The marking of the devices in accordance with the description code is shown on the nameplates
below. On both the compact devices and the remote versions, the main plate is located on the
signal converter housing. On the remote versions there is an additional marking on the flow
sensor.
Compact versions with two signal converters for dual measurement (dual version) are each
marked with a nameplate, which is attached to each of the signal converter housings.
The details relevant to explosion protection are identical on both nameplates.
DEVICE DESCRIPTION
®
2
Figure 2-1: Example of a nameplate for the compact version
1 Device version SITRANS FX330
2 Production order number
3 Serial number
4 Year of manufacture
5 Marking acc. to KIWA 16 ATEX 0045X or IECEx KIWA 16.0022X
6 Permissible ambient temperature range
7 Electrical connection data
8 Safety instructions, disposal and data matrix
9 Internet address of the manufacturer
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2
DEVICE DESCRIPTION
SITRANS FX330
Figure 2-2: Example of nameplates for remote version
1 Device version SITRANS FXT030 / SITRANS FXS300
2 Production order number
3 Serial number
4 Year of manufacture
5 Marking according to KIWA 16 ATEX 0045X or IECEx KIWA 16.0022X
6 Permissible ambient temperature range
7 Electrical connection data
8 Safety instructions, disposal and data matrix
9 Internet address of the manufacturer
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SITRANS FX330
2.3 Flammable products
Atmospheric conditions
An explosive atmosphere is a mixture of air and flammable gases, vapours, mists or dusts under
atmospheric conditions.
It is defined by the following values T
11.6...15.9 psi.
Outside of this range, for most mixtures no key figures are available for the ignition behaviour.
Operating conditions
Vortex flowmeters operate outside of atmospheric conditions, which means that explosion
protection according to the ATEX directive, regardless of the zone assignment, is fundamentally
not applicable due to the lack of key safety data for the interior of the measuring section.
CAUTION!
Operation with flammable products is only permitted as long as no explosive fuel/air mixture
builds up on the inside of the flowmeter under operating conditions. The operator is responsible
to ensure that the flowmeter is operated safely in terms of the temperature and pressure of the
products used.
In case of operation with flammable products the measuring units must be included in the
periodic pressure tests of the system.
DEVICE DESCRIPTION
= -20...+60°C / -4...+140°F and P
atm
= 0.8...1.1 bar /
atm
2
2.4 Equipment category
Vortex flowmeters are designed in category II 2 G / II 2 D or EPL Gb and EPL Db according to
EN 60079-0, EN 60079-1 and EN 60079-31 for use in zone 1 or zone 21. The inside of the
measuring unit is also approved for zone 1.
Vortex flowmeters are designed according to the "IECEx-Scheme" according to "Equipment
Protection Level [EPL] Gb or [EPL] Db".
INFORMATION!
Definition of zone 1 according to EN 1127-1, Appendix B:
An area in which an explosive atmosphere, as a result of the mixture of flammable substances in
the form of gas, steam or mist with air, under normal operation may occasionally occur.
Definition of zone 21 according to EN 1127-1, Appendix B:
An area in which an explosive atmosphere may occasionally occur in the form of a cloud of
flammable dust in the air under normal operation.
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DEVICE DESCRIPTION
2.5 Types of protection
The following types of protection are used:
The following types of protection are used:
The following types of protection are used:The following types of protection are used:
Electronics compartmentEx db (Gb) or Ex tb (Db)
Terminal compartmenteither Ex db or Ex eb (Gb) or Ex tb (Db)
Flow sensorEx ia (Gb or Db)
Marking for the flameproof version of compact versions:
Marking for the flameproof version of compact versions:
Marking for the flameproof version of compact versions:Marking for the flameproof version of compact versions:
ATEXII 2 G
IECExEx db ia IIC T6...T2 Gb
Marking for the flameproof version of remote versions:
Marking for the flameproof version of remote versions:
Marking for the flameproof version of remote versions:Marking for the flameproof version of remote versions:
ATEXII 2 G
IECExEx db [ia] IIC T6 Gb
II 2 GEx db ia IIC T6...T2 Gb
II 2 GII 2 G
Ex db ia IIC T6...T2 Gb
Ex db ia IIC T6...T2 GbEx db ia IIC T6...T2 Gb
or
Ex db eb ia IIC T6...T2 Gb
Ex db eb ia IIC T6...T2 Gb
Ex db eb ia IIC T6...T2 GbEx db eb ia IIC T6...T2 Gb
II 2 GEx db [ia] IIC T6 Gb
II 2 GII 2 G
II 2 G
II 2 GEx ia IIC T6...T2 Gb
II 2 GII 2 G
Ex db [ia] IIC T6 Gb (signal converter)
Ex db [ia] IIC T6 GbEx db [ia] IIC T6 Gb
or
Ex db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 GbEx db eb [ia] IIC T6 Gb
Ex ia IIC T6...T2 Gb
Ex ia IIC T6...T2 Gb (flow sensor)
Ex ia IIC T6...T2 GbEx ia IIC T6...T2 Gb
Ex db (Gb) or Ex tb (Db)
Ex db (Gb) or Ex tb (Db)Ex db (Gb) or Ex tb (Db)
either Ex db or Ex eb (Gb) or Ex tb (Db)
either Ex db or Ex eb (Gb) or Ex tb (Db)either Ex db or Ex eb (Gb) or Ex tb (Db)
Ex ia (Gb or Db)
Ex ia (Gb or Db)Ex ia (Gb or Db)
Ex db ia IIC T6...T2 Gb
Ex db ia IIC T6...T2 GbEx db ia IIC T6...T2 Gb
or
Ex db eb ia IIC T6...T2 Gb
Ex db eb ia IIC T6...T2 Gb
Ex db eb ia IIC T6...T2 GbEx db eb ia IIC T6...T2 Gb
Ex db [ia] IIC T6 Gb (signal converter)
Ex db [ia] IIC T6 GbEx db [ia] IIC T6 Gb
or
Ex db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 GbEx db eb [ia] IIC T6 Gb
Ex ia IIC T6...T2 Gb (flow sensor)
Ex ia IIC T6...T2 GbEx ia IIC T6...T2 Gb
SITRANS FX330
Marking for the dustproof version of compact versions:
Marking for the dustproof version of compact versions:
Marking for the dustproof version of compact versions:Marking for the dustproof version of compact versions:
ATEXII 2 D
IECExEx tb ia IIIC T70
Marking for the dustproof version of remote versions:
Marking for the dustproof version of remote versions:
Marking for the dustproof version of remote versions:Marking for the dustproof version of remote versions:
ATEXII 2 D
IECExEx tb [ia] IIIC T70
II 2 DEx tb ia IIIC T70
II 2 DII 2 D
Ex tb ia IIIC T70°C...T240
Ex tb ia IIIC T70Ex tb ia IIIC T70
II 2 DEx tb [ia] IIIC T70
II 2 DII 2 D
II 2 D
II 2 DEx ia IIIC T70
II 2 DII 2 D
Ex tb [ia] IIIC T70°C Db
Ex tb [ia] IIIC T70Ex tb [ia] IIIC T70
Ex ia IIIC T70
Ex ia IIIC T70°C...T240
Ex ia IIIC T70Ex ia IIIC T70
Ex tb ia IIIC T70°C...T240
Ex tb ia IIIC T70Ex tb ia IIIC T70
C...T240°C Db
C...T240C...T240
Ex tb [ia] IIIC T70°C Db
Ex tb [ia] IIIC T70Ex tb [ia] IIIC T70
Ex ia IIIC T70°C...T240
Ex ia IIIC T70Ex ia IIIC T70
C...T240°C Db
C...T240C...T240
C Db
C DbC Db
C...T240°C Db
C...T240C...T240
C Db (signal converter)
C DbC Db
C Db (flow sensor)
C DbC Db
C...T240°C Db
C...T240C...T240
C Db (signal converter)
C DbC Db
C Db
C DbC Db
C Db (flow sensor)
C DbC Db
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SITRANS FX330
The marking contains the following information:
The marking contains the following information:
The marking contains the following information:The marking contains the following information:
II
IIExplosion protection, group II
IIII
2222Equipment category 2
GGGGGas explosion protection
DDDDDust ignition protection
Ex db
Ex dbProtection type "Flameproof enclosure"
Ex dbEx db
Ex eb
Ex ebProtection type "Increased safety"
Ex ebEx eb
Ex tb
Ex tbProtection type "Equipment - dust ignition protection by enclosure"
Ex tbEx tb
Ex ia
Ex iaProtection type "Intrinsic safety", protection level "ia" (flow sensor, compact device)
Ex iaEx ia
Ex [ia]
Ex [ia]Protection type "Intrinsic safety", protection level "ia" (flow sensor circuit, remote
Ex [ia]Ex [ia]
IIC
IICGas group, suitable for gas groups IIC, IIB and IIA
IICIIC
IIIC
IIICDust group, suitable for groups IIIC, IIIB and IIIA
IIICIIIC
T6...T2
T6...T2Temperature class range, suitable for temperature class T1...T6
T6...T2T6...T2
T70
T70°CCCCMaximum surface temperature of the signal converter housing without dust coating at
T70T70
T70
T70°C...T240
T70T70
Gb
GbEPL, suitable for zone 1 and zone 2
GbGb
Db
DbEPL, suitable for zone 21 and zone 22
DbDb
DEVICE DESCRIPTION
version)
ambient temperature 65°C / 149°F and product temperature 65°C / 149°F
C...T240°CCCCMaximum surface temperature of the flow sensor housing without dust coating at
C...T240C...T240
ambient temperature 65°C / 149°F (is determined by the product temperature)
2
2.6 Ambient temperature / temperature classes
Because of the influence of the temperature of the product, no fixed temperature class is
assigned to vortex flowmeters. The temperature class of these devices is rather a function of the
product temperature and ambient temperature that is present and the specific device version.
The classification is outlined in the following tables.
The tables take into account the following parameters:
• Ambient temperature T
• Product temperature T
• Nominal size DN
• Heat resistance of the connecting cable
amb
m
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2
DEVICE DESCRIPTION
INFORMATION!
The maximum permissible product temperatures listed in the tables are valid under
the following conditions:
•
The measuring device is installed and operated in accordance with the manufacturer's
installation instructions.
•
It must be ensured that the flowmeter is not heated by the effects of additional heat radiation
(sunshine, neighbouring system components) and thus operated above the permissible
ambient temperature range.
SITRANS FX330
•
Insulation must be limited to the piping. Unobstructed ventilation of the signal converter
must be ensured.
The permitted ambient temperature range is indicated on the nameplate; depending on the
device version it is T
The minimum product temperature is -40°C/ -40°F.
When using in zone 21, observe the maximum permissible product and ambient temperatures
for temperature class 2 and the information for use of a heat-resistant connecting cable and
cable entry.
= -40...+65°C / -40...+149°F.
amb
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