Siemens SITRANS FX330 Operating instructions

Additional Operating Instructions
SITRANS FX330 Ex-i
Vortex flowmeters
09/2018Edition
SITRANS F
www.siemens.com/flow

CONTENTS
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SITRANS FX330
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EU conformity ................................................................................................................... 3
1.3 Approval according to the IECEx scheme ........................................................................ 3
1.4 Safety instructions............................................................................................................ 4
2 Device description 5
2.1 Device description ............................................................................................................ 5
2.2 Marking............................................................................................................................. 5
2.3 Flammable products ........................................................................................................ 7
2.4 Equipment category .........................................................................................................7
2.5 Types of protection ........................................................................................................... 8
2.6 Ambient temperature / temperature classes.................................................................. 8
2.7 Electrical data................................................................................................................. 16
3 Installation 17
3.1 Mounting ......................................................................................................................... 17
3.2 Special conditions........................................................................................................... 18
4 Electrical connections 19
4.1 General notes ................................................................................................................. 19
4.2 Power supply .................................................................................................................. 19
4.3 Inputs / Outputs .............................................................................................................. 20
4.4 Grounding and equipotential bonding............................................................................ 20
4.5 Flow sensor circuits (remote version only) ................................................................... 22
5 Operation 23
5.1 Start-up........................................................................................................................... 23
5.2 Operation ........................................................................................................................ 23
5.3 Electrostatic charge .......................................................................................................23
6 Service 24
6.1 Maintenance ................................................................................................................... 24
6.2 Dismantling .................................................................................................................... 24
7 Notes 26

SAFETY INSTRUCTIONS 1
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1.1 General notes
This additional instruction applies to explosion-protected versions of vortex flowmeters with
protection type intrinsic safety "i", equipment category II 2 G and EPL Gb.
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.
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.
The EU declaration of conformity for the equipment category II 2 G is based on the EU type
examination certificate of the KIWA ExVision:
The "X" after the certificate number refers to special conditions for safe use of the device, which
have been listed in these instructions.
If necessary, the EU type examination certificate can be downloaded from the manufacturer's
website.
1.3 Approval according to the IECEx scheme
Conformity of the vortex flowmeter for use in hazardous areas with gas was tested in accordance
with the "IECEx Certification Scheme for Explosive Atmospheres" according to IEC 60079-0 and
IEC 60079-11.
The number of the IEC certificate is:
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.
KIWA 16 ATEX 0044X
KIWA 16 ATEX 0044XKIWA 16 ATEX 0044X
KIWA 16 ATEX 0044X
IECEx KIWA 16.0021X
IECEx KIWA 16.0021XIECEx KIWA 16.0021X
IECEx KIWA 16.0021X

1 SAFETY INSTRUCTIONS
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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!
The operator or his agent is responsible for observing any additional standards, directives or
laws if required due to operating conditions or place of installation.
This applies in particular to the use of easily detachable process connections when measuring
flammable media.

DEVICE DESCRIPTION 2
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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.
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 Ex data according to KIWA 16 ATEX 0044X or IECEx KIWA 16.0021X
6 Permissible ambient temperature range
7 Maximum values intrinsically safe circuits
8 Safety instructions, disposal and data matrix
9 Internet address of the manufacturer

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Figure 2-2: Example of the nameplates for the remote version
1 Device version SITRANS FXT030 / SITRANS FXS300
2 Production order number
3 Serial number
4 Year of manufacture
5 Ex data according to KIWA 16 ATEX 0044X or IECEx KIWA 16.0021X
6 Permissible ambient temperature range
7 Maximum values intrinsically safe circuits
8 Safety instructions, disposal and data matrix
9 Internet address of the manufacturer

DEVICE DESCRIPTION 2
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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
atm
= -20...+60°C / -4...+140°F and P
atm
= 0.8...1.1 bar /
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.
2.4 Equipment category
Vortex flowmeters are designed in category II 2 G and EPL Gb according to EN 60079-0 and
EN 60079-11 for use in zone 1. 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".
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.
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.

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2.5 Types of protection
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
amb
•Product temperature T
m
•Nominal size DN
•Heat resistance of the connecting cable
The marking is:
ATEX II 2 G Ex ia IIC T6...T2 Gb
II 2 G Ex ia IIC T6...T2 GbII 2 G Ex ia IIC T6...T2 Gb
II 2 G Ex ia IIC T6...T2 Gb
(compact version, flow sensor in remote version)
or
II 2 G Ex ia IIC T6 Gb
II 2 G Ex ia IIC T6 GbII 2 G Ex ia IIC T6 Gb
II 2 G Ex ia IIC T6 Gb
(signal converter in remote version)
IECEx Ex ia IIC T6...T2 Gb
Ex ia IIC T6...T2 GbEx ia IIC T6...T2 Gb
Ex ia IIC T6...T2 Gb
(compact version, flow sensor in remote version)
or
Ex ia IIC T6 Gb
Ex ia IIC T6 GbEx ia IIC T6 Gb
Ex ia IIC T6 Gb
(signal converter in remote version)
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
IIII
II Explosion protection, group II
2
22
2Equipment category 2
G
GG
GGas explosion protection
Ex ia
Ex iaEx ia
Ex ia Intrinsically safe, level of protection "ia"
IIC
IICIIC
IIC Gas group, suitable for gas groups IIC, IIB and IIA
T6...T2
T6...T2T6...T2
T6...T2 Temperature class range
(compact version, flow sensor in remote version)
T6
T6T6
T6 Temperature class
(signal converter in remote version)
Gb
GbGb
Gb EPL, suitable for zone 1
INFORMATION!
In principle, operation is possible in all ranges of the temperature classes T1...T6.

DEVICE DESCRIPTION 2
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The permitted ambient temperature range is indicated on the nameplate; depending on the
device version it is T
amb
= -40...+65°C / -40...+149°F.
The minimum product temperature is -40°C/-40°F.
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.
• Insulation must be limited to the piping. Unobstructed ventilation of the signal converter
must be ensured.

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Max. permissible product and ambient temperatures with signal converter or
connection box mounted above the flow sensor
Temperature class in °C
Temperature class in °F
Temperature class T6 T5 T4 T3 T2
T
amb
in °C40 60 60 65 40 60 65 40 60 65
Nominal size
DN15…25 85 65 135 135 1 200 200 1 185 1 240 210 1 185 1
DN40…50 75 65 135 135 1 200 195 1 165 1 240 195 1 165 1
DN80…100 70 65 135 1 135 1 200 165 1 145 1 240 1 165 1 145 1
DN150...300 80 65 135 135 1 200 200 1 170 1 240 200 1 170 1
1Permanent service temperature of connecting cable and cable entry min. 80°C
Temperature class T6 T5 T4 T3 T2
T
amb
in °F104 140 140 149 104 140 149 104 140 149
Nominal size
DN15…25 185 149 275 275 1 392 392 1 365 1 464 410 1 365 1
DN40…50 167 149 275 275 1 392 383 1 329 1 464 383 1 329 1
DN80…100 158 149 275 1 275 1 392 329 1 293 1 464 1 329 1 293 1
DN150...300 176 149 275 275 1 392 392 1 338 1 464 392 1 338 1
1Permanent service temperature of connecting cable and cable entry min. 176°F