Siemens Sitrans F Series Operating instructions

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

CONTENTS
2
www.siemens.com/flow 09/2018 - A5E40861058-AB
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.................................................................. 9
2.7 Surface temperature for equipment category II 2 D...................................................... 16
2.8 Electrical data................................................................................................................. 17
3 Installation 18
3.1 Mounting ......................................................................................................................... 18
3.2 Special conditions........................................................................................................... 19
4 Electrical connections 20
4.1 General notes ................................................................................................................. 20
4.2 Power supply .................................................................................................................. 22
4.3 Inputs / Outputs .............................................................................................................. 22
4.4 Grounding and equipotential bonding............................................................................ 23
4.5 Flow sensor circuits (remote version only) ................................................................... 24
5 Operation 25
5.1 Start-up........................................................................................................................... 25
5.2 Operation ........................................................................................................................ 25
5.3 Electrostatic charge .......................................................................................................26
6 Service 27
6.1 Maintenance ................................................................................................................... 27
6.2 Dismantling .................................................................................................................... 27
7 Notes 29

SAFETY INSTRUCTIONS 1
3
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
1.1 General notes
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:
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:
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 0045X
KIWA 16 ATEX 0045XKIWA 16 ATEX 0045X
KIWA 16 ATEX 0045X
IECEx KIWA 16.0022X
IECEx KIWA 16.0022XIECEx KIWA 16.0022X
IECEx KIWA 16.0022X

1 SAFETY INSTRUCTIONS
4
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
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.

DEVICE DESCRIPTION 2
5
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
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 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

2 DEVICE DESCRIPTION
6
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
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

DEVICE DESCRIPTION 2
7
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
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 / 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".
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.
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.

2 DEVICE DESCRIPTION
8
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
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 compartment Ex db (Gb) or Ex tb (Db)
Ex db (Gb) or Ex tb (Db)Ex db (Gb) or Ex tb (Db)
Ex db (Gb) or Ex tb (Db)
Terminal compartment 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)
either Ex db or Ex eb (Gb) or Ex tb (Db)
Flow sensor Ex ia (Gb or Db)
Ex ia (Gb or Db)Ex ia (Gb or Db)
Ex 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:
ATEX II 2 G
II 2 GII 2 G
II 2 G Ex db ia IIC T6...T2 Gb
Ex db ia IIC T6...T2 GbEx db ia IIC T6...T2 Gb
Ex db ia IIC T6...T2 Gb
or
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 eb ia IIC T6...T2 Gb
IECEx Ex db ia IIC T6...T2 Gb
Ex db ia IIC T6...T2 GbEx db ia IIC T6...T2 Gb
Ex db ia IIC T6...T2 Gb
or
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 eb 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:
ATEX II 2 G
II 2 GII 2 G
II 2 G Ex db [ia] IIC T6 Gb
Ex db [ia] IIC T6 GbEx db [ia] IIC T6 Gb
Ex db [ia] IIC T6 Gb (signal converter)
or
Ex db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 GbEx db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 Gb
II 2 G
II 2 GII 2 G
II 2 G Ex ia IIC T6...T2 Gb
Ex ia IIC T6...T2 GbEx ia IIC T6...T2 Gb
Ex ia IIC T6...T2 Gb (flow sensor)
IECEx Ex db [ia] IIC T6 Gb
Ex db [ia] IIC T6 GbEx db [ia] IIC T6 Gb
Ex db [ia] IIC T6 Gb (signal converter)
or
Ex db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 GbEx db eb [ia] IIC T6 Gb
Ex db eb [ia] IIC T6 Gb
Ex ia IIC T6...T2 Gb
Ex ia IIC T6...T2 GbEx ia IIC T6...T2 Gb
Ex ia IIC T6...T2 Gb (flow sensor)
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:
ATEX II 2 D
II 2 DII 2 D
II 2 D Ex tb ia IIIC T70
Ex tb ia IIIC T70Ex tb ia IIIC T70
Ex tb ia IIIC T70°C...T240
C...T240C...T240
C...T240°C Db
C DbC Db
C Db
IECEx Ex tb ia IIIC T70
Ex tb ia IIIC T70Ex tb ia IIIC T70
Ex tb ia IIIC T70°C...T240
C...T240C...T240
C...T240°C Db
C DbC Db
C Db
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:
ATEX II 2 D
II 2 DII 2 D
II 2 D Ex tb [ia] IIIC T70
Ex tb [ia] IIIC T70Ex tb [ia] IIIC T70
Ex tb [ia] IIIC T70°C Db
C DbC Db
C Db (signal converter)
II 2 D
II 2 DII 2 D
II 2 D Ex ia IIIC T70
Ex ia IIIC T70Ex ia IIIC T70
Ex ia IIIC T70°C...T240
C...T240C...T240
C...T240°C Db
C DbC Db
C Db (flow sensor)
IECEx Ex tb [ia] IIIC T70
Ex tb [ia] IIIC T70Ex tb [ia] IIIC T70
Ex tb [ia] IIIC T70°C Db
C DbC Db
C Db (signal converter)
Ex ia IIIC T70
Ex ia IIIC T70Ex ia IIIC T70
Ex ia IIIC T70°C...T240
C...T240C...T240
C...T240°C Db
C DbC Db
C Db (flow sensor)

DEVICE DESCRIPTION 2
9
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
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 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
D
DD
DDust ignition protection
Ex db
Ex dbEx db
Ex db Protection type "Flameproof enclosure"
Ex eb
Ex ebEx eb
Ex eb Protection type "Increased safety"
Ex tb
Ex tbEx tb
Ex tb Protection type "Equipment - dust ignition protection by enclosure"
Ex ia
Ex iaEx ia
Ex ia Protection type "Intrinsic safety", protection level "ia" (flow sensor, compact device)
Ex [ia]
Ex [ia]Ex [ia]
Ex [ia] Protection type "Intrinsic safety", protection level "ia" (flow sensor circuit, remote
version)
IIC
IICIIC
IIC Gas group, suitable for gas groups IIC, IIB and IIA
IIIC
IIICIIIC
IIIC Dust group, suitable for groups IIIC, IIIB and IIIA
T6...T2
T6...T2T6...T2
T6...T2 Temperature class range, suitable for temperature class T1...T6
T70
T70T70
T70°C
CC
CMaximum surface temperature of the signal converter housing without dust coating at
ambient temperature 65°C / 149°F and product temperature 65°C / 149°F
T70
T70T70
T70°C...T240
C...T240C...T240
C...T240°C
CC
CMaximum surface temperature of the flow sensor housing without dust coating at
ambient temperature 65°C / 149°F (is determined by the product temperature)
Gb
GbGb
Gb EPL, suitable for zone 1 and zone 2
Db
DbDb
Db EPL, suitable for zone 21 and zone 22

2 DEVICE DESCRIPTION
10
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
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.
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.
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.

DEVICE DESCRIPTION 2
11
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
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 °C60 65 60 65 60 65 40 60 65 40 60 65
Nominal size
DN15…25 80 65 100 100 135 135
1
200 200
1
165
1
240 200
1
165
1
DN40…50 80 65 100 100 135 135
1
200 175
1
150
1
240 175
1
150
1
DN65…100 80 65 100 100
1
135
1
130
1
200 150
1
130
1
235
1
150
1
130
1
DN150...300 75 65 100 100 135 135
1
200 185
1
155
1
240 185
1
155
1
1Permanent service temperature of connecting cable and cable entry min. 80°C
Temperature class T6 T5 T4 T3 T2
T
amb
in °F140 149 140 149 140 149 104 140 149 104 140 149
Nominal size
DN15…25 176 149 212 212 275 275
1
392 392
1
329
1
464 392
1
329
1
DN40…50 176 149 212 212 275 275
1
392 347
1
302
1
464 347
1
302
1
DN65…100 176 149 212 212
1
275
1
266
1
392 302
1
266
1
455
1
302
1
266
1
DN150...300 167 149 212 212 275 275
1
392 365
1
311
1
464 365
1
311
1
1Permanent service temperature of connecting cable and cable entry min. 176°F

2 DEVICE DESCRIPTION
12
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
Max. permissible product and ambient temperatures with signal converter or
connection box mounted at side or underneath the flow sensor
Temperature class in °C
Temperature class in °F
Temperature class T6 T5 T4 T3 T2
T
amb
in °C60 65 60 65 60 65 40 60 65 40 60 65
Nominal size
DN15…25 85 65 100 100 135 135 200 200 200 1 240 240 240 1
DN40…50 80 65 100 100 135 135 200 200 200 1 240 240 240 1
DN65…100 85 65 100 100 135 135 1 200 200 1 200 1 240 240 1 240 1
DN150...300 80 65 100 100 135 135 200 200 200 1 240 240 240 1
1Permanent service temperature of connecting cable and cable entry min. 80°C
Temperature class T6 T5 T4 T3 T2
T
amb
in °F140 149 140 149 140 149 104 140 149 104 140 149
Nominal size
DN15…25 185 149 212 212 275 275 392 392 392 1 464 464 464 1
DN40…50 176 149 212 212 275 275 392 392 392 1 464 464 464 1
DN65…100 185 149 212 212 275 275 1 392 392 1 392 1 464 464 1 464 1
DN150...300 176 149 212 212 275 275 392 392 392 1 464 464 464 1
1Permanent service temperature of connecting cable and cable entry min. 176°F

DEVICE DESCRIPTION 2
13
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
Max. permissible product and ambient temperatures for devices with painted flow
sensors / signal converters 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 °C60 65 60 65 60 65 40 60 65 40 60 65
Nominal size
DN15…25 70 65 100 95 1 120
1
115
1
120 120
1
115
1
120 120
1
115
1
DN40…50 70 65 100 95 1 115
1
105
1
120 115
1
105
1
120 115
1
105
1
DN65…100 70 65 100
1
90 1 105
1
95 1 120 105
1
95 1 120 105
1
95 1
DN150...300 65 65 95 90 1 120
1
110
1
120 120
1
110
1
120 120
1
110
1
1Permanent service temperature of connecting cable and cable entry min. 80°C
Temperature class T6 T5 T4 T3 T2
T
amb
in °F140 149 140 149 140 149 104 140 149 104 140 149
Nominal size
DN15…25 159 149 212 203
1
248
1
239
1
248 248
1
239
1
248 248
1
239
1
DN40…50 159 149 212 203
1
239
1
221
1
248 239
1
221
1
248 239
1
221
1
DN65…100 158 149 212
1
194
1
221
1
203
1
248 221
1
203
1
248 221
1
203
1
DN150...300 149 149 203 194
1
248
1
230
1
248 248
1
230
1
248 248
1
230
1
1Permanent service temperature of connecting cable and cable entry min. 176°F

2 DEVICE DESCRIPTION
14
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
Max. permissible product and ambient temperatures for devices with painted flow
sensors / signal converters or connection box mounted at side or underneath the flow
sensor
Temperature class in °C
Temperature class in °F
Temperature class T6 T5 T4 T3 T2
T
amb
in °C60 65 60 65 60 65 40 60 65 40 60 65
Nominal size
DN15…25 65 65 95 90 120 120
1
120 120 120
1
120 120 120
1
DN40…50 65 65 85 80 120
1
120
1
120 120
1
120
1
120 120
1
120
1
DN65…100 65 65 95 90 1 120
1
120
1
120 120
1
120
1
120 120
1
120
1
DN150...300 65 65 85 85 120 120
1
120 120 120
1
120 120 120
1
1Permanent service temperature of connecting cable and cable entry min. 80°C
Temperature class T6 T5 T4 T3 T2
T
amb
in °F140 149 140 149 140 149 104 140 149 104 140 149
Nominal size
DN15…25 149 149 203 194 248 248
1
248 248 248
1
248 248 248
1
DN40…50 149 149 185 176 248
1
248
1
248 248
1
248
1
248 248
1
248
1
DN65…100 149 149 203 248
1
248
1
248
1
248 248
1
248
1
248 248
1
248
1
DN150...300 149 149 185 248 248 248
1
248 248 248
1
248 248 248
1
1Permanent service temperature of connecting cable and cable entry min. 176°F

DEVICE DESCRIPTION 2
15
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
Max. permissible product and ambient temperatures with signal converter in stainless
steel (bright) or connection box in stainless steel (bright) mounted above the flow
sensor
Temperature class in °C
Temperature class in °F
Temperature class T6 T5 T4 T3 T2
T
amb
in °C60 65 60 65 60 65 40 60 65 40 60 65
Nominal size
DN15…25 75 65 100 100 135 135
1
200 170
1
145
1
225 170
1
145
1
DN40…50 75 65 100 100
1
135
1
130
1
200 150
1
130
1
235 150
1
130
1
DN65…100 75 65 100 100
1
135
1
115
1
195
1
135
1
115
1
195
1
135
1
115
1
DN150...300 75 65 100 100
1
135
1
135
1
200 155
1
135
1
230 155
1
135
1
1Permanent service temperature of connecting cable and cable entry min. 80°C
Temperature class T6 T5 T4 T3 T2
T
amb
in °F140 149 140 149 140 149 104 140 149 104 140 149
Nominal size
DN15…25 167 149 212 212 275 275
1
392 338
1
293
1
437 338
1
293
1
DN40…50 167 149 212 212
1
275
1
266
1
392 302
1
266
1
455 302
1
266
1
DN65…100 167 149 212 212
1
274
1
239
1
383
1
274
1
239
1
383
1
274
1
239
1
DN150...300 167 149 212 212
1
275
1
275
1
392 311
1
275
1
446 311
1
275
1
1Permanent service temperature of connecting cable and cable entry min. 176°F

2 DEVICE DESCRIPTION
16
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
Max. permissible product and ambient temperatures with signal converter in stainless
steel (bright) or connection box in stainless steel (bright) mounted at side or
underneath the flow sensor
Temperature class in °C
Temperature class in °F
2.7 Surface temperature for equipment category II 2 D
For use in areas with flammable dust it should be noted that the indicated maximum surface
temperature of T70°C at an ambient temperature of 65°C / 149°F and a product temperature of
65°C / 149°F is valid without a dust coating.
For higher product temperatures the maximum surface temperature is defined by the product.
Temperature class T6 T5 T4 T3 T2
T
amb
in °C60 65 60 65 60 65 40 60 65 40 60 65
Nominal size
DN15…25 85 65 100 100 135 135 200 200 200 1 240 240 240 1
DN40…50 75 65 100 100 135 135 1 200 200 200 1 240 235 1 225 1
DN65…100 85 65 100 100 135 135 1 200 200 1 200 1 240 240 1 225 1
DN150...300 75 65 100 100 135 135 200 200 200 1 240 240 235 1
1Permanent service temperature of connecting cable and cable entry min. 80°C
Temperature class T6 T5 T4 T3 T2
T
amb
in °F140 149 140 149 140 149 104 140 149 104 140 149
Nominal size
DN15…25 185 149 212 212 275 275 392 392 392 1 464 464 464 1
DN40…50 167 149 212 212 275 275 1 392 392 392 1 464 455 1 437 1
DN65…100 185 149 212 212 275 275 1 392 392 1 392 1 464 464 1 437 1
DN150...300 167 149 212 212 275 275 392 392 392 1 464 464 455 1
1Permanent service temperature of connecting cable and cable entry min. 176°F

DEVICE DESCRIPTION 2
17
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
2.8 Electrical data
Signal circuits
Signal circuitsSignal circuits
Signal circuits
The vortex flowmeter signal circuits may only be connected to circuits with the following
maximum values. A safety value of U
m
= 253 V is considered for the power supply units.
Flow sensor circuits
Flow sensor circuitsFlow sensor circuits
Flow sensor circuits
For the compact versions, the intrinsically safe flow sensor circuits are designed as internal
circuits.
For the remote versions, the intrinsically safe flow sensor circuits are led through. The
maximum permissible safety values of the flow sensor circuits are listed below:
Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded)
Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded)Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded)
Remote signal converter, flow sensor circuit (terminal 1 to 7, colour-coded)
U
o
=6.65V;I
o
= 1107 mA; P
o
= 650 mW; C
o
=1.5µF; L
o
=73µH
Remote flow sensor (terminal 1 to 7, colour-coded)
Remote flow sensor (terminal 1 to 7, colour-coded)Remote flow sensor (terminal 1 to 7, colour-coded)
Remote flow sensor (terminal 1 to 7, colour-coded)
U
i
=7V;I
i
= 1107 mA; P
i
= 650 mW; C
i
=0;L
i
=0
Device version Circuit
Terminals
Nominal voltage Nominal current
SITRANS FX330
SITRANS FXT030
4...20 mA version
Current output 4...20 mA
C1, C2 12...32 VDC 4...20 mA
Binary output
M1, M2, M3, M4 8...32 VDC ≤100 mA
Current input
I1, I2 9...32 VDC 4...20 mA
SITRANS FX330
SITRANS FXT030
Foundation Fieldbus version
1
Bus connection
A1, A2
B1, B2
9...32 VDC 20 mA
SITRANS FX330
SITRANS FXT030
Profibus PA version 2
1Further information for operation of the FF transmitter are provided in separate supplementary instructions.
2Further information for operation of the PA transmitter are provided in separate supplementary instructions.
INFORMATION!
The verification of intrinsic safety for the interconnection between the flow sensor an the signal
converter is not necessary, if the cable length does not exceed 50 m / 164 ft and the supplied
cable is used.

3 INSTALLATION
18
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
3.1 Mounting
Mounting and setup must be carried out according to the applicable installation standards
(e.g. EN 60079-14) by qualified personnel trained in explosion protection.
The information given in the manual and these instructions must always be observed.
Vortex flowmeters must be installed in such a way that
•no external forces are affecting the indication unit.
•the device is accessible for any necessary visual inspections and can be viewed from all sides.
•the nameplate is clearly visible.
•it can be operated from a location with secure footing.
Aligning the signal converter
The signal converter and the connection box for the remote versions may be aligned on the base
or the wall bracket up to a maximum of ±180 . For this reason, the M4 hexagon socket screw
connecting the base and the signal converter or the connection box must be loosened. Once the
signal converter or the connection box has been turned, it must be screwed back on to the base
again (tightening torque 2 Nm).
• De-energise the signal converter.
• Loosen the hexagon socket screw 1.
• Turn the signal converter or the connection box.
• Screw signal converter or connection box back to the base again.
CAUTION!
The manufacturer is not liable for any damage resulting from improper use or use other than the
intended purpose. This applies in particular to hazards due to insufficient corrosion resistance
and suitability of the materials in contact with product.
Figure 3-1: Aligning the signal converter
1 M4 hexagon socket screw on connection housing

INSTALLATION 3
19
SITRANS FX330
www.siemens.com/flow09/2018 - A5E40861058-AB
3.2 Special conditions
Flameproof joints in the housing
The housing must be replaced if there is any damage to the joint area. The flameproof thread
gaps and the cylindrical joint between the terminal and the electronics compartments must be
inspected visually after opening.
Electrostatics
For painted versions, risks due to electrostatic charge must be minimized.
For further information refer to
Electrostatic charge on page 26.
Thermal and electrical data
Observe the maximum ambient and product temperatures and electrical data. For further
information refer to
Ambient temperature / temperature classes on page 9 and refer to Surface
temperature for equipment category II 2 D
on page 16 and refer to Electrical data on page 17.
WARNING!
Repairs of the flameproof joints are not allowed.

4 ELECTRICAL CONNECTIONS
20
SITRANS FX330
www.siemens.com/flow 09/2018 - A5E40861058-AB
4.1 General notes
Rated values for insulation
•The insulation of the vortex flowmeter SITRANS FX330 . .. - Ex is rated in compliance with
IEC 60 664-1.
The following rating parameters are taken into account:
•Overvoltage category for signal and instrument loops: II
•Pollution degree of the insulation: 2
Terminal compartment
The signal circuit is electrically connected in the terminal compartment of the signal converter.
The terminal compartment is designed in protection type "d" and/or "e" or in protection type "t".
Unused entries are to be closed in accordance with EN 60079-1, EN 60079-7 or EN 60079-31.
The entry of the cables in the connection terminal is possible in the following way.
•Device version Ex db ia IIC T6...T2 Gb or Ex db [ia] IIC T6
Direct entry of the connecting cables by way of approved flameproof cable glands (M20x1.5)
into the flameproof terminal compartment (V ≤2000 cm³). The cable glands require a
separate test certificate in accordance with EN 60079-1. Observe the requirements of the test
certificate for the cable glands.
•Device version Ex db ia IIC T6...T2 Gb or Ex db [ia] IIC T6
Direct entry of the connecting cables by way of conduits into the flameproof enclosed
terminal compartment of the device. Once the conduit has been screwed in, it must form a
flameproof joint with the housing with a minimum thread length of 8 mm. A suitable
mechanical stopping box must be provided in accordance with installation provisions. The
conduit must be installed in compliance with its separate test certificate.
•Device version Ex db eb ia IIC T6...T2 Gb or Ex db eb [ia] IIC T6
Direct entry of the connecting cables by way of approved cable glands (M20x1.5) into the
terminal compartment in protection type increased safety.
The cable glands require a separate test certificate in accordance with EN 60079-7. Observe
the requirements of the test certificate for the cable glands.
•Device version Ex tb ia IIIC T70...T240 Db or Ex tb [ia] IIIC T70°C Db
Direct entry of the connecting cables by way of approved dustproof cable glands (M20x1.5)
into the dustproof terminal compartment (V ≤2000 cm³).
The cable glands require a separate test certificate in accordance with EN 60079-31. Observe
the requirements of the test certificate for the cable glands.