KROHNE OPTISWIRL 5080 Wiring diagram

Vortex flowmeter for high temperature applications
Intrinsically safe version
ATEX category:
ATEX category:ATEX category:
ATEX category: II 1 G and II 2 D
Equipment protection level:
Equipment protection level:Equipment protection level:
Equipment protection level: Ga and Db
OPTISWIRL 5080
OPTISWIRL 5080OPTISWIRL 5080
OPTISWIRL 5080 Supplementary Instructions
Supplementary InstructionsSupplementary Instructions
Supplementary Instructions
© KROHNE 04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01

CONTENTS
2
www.krohne.com 04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
OPTISWIRL 5080
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EU conformity ................................................................................................................... 3
1.3 Approval according to the IECEx scheme ........................................................................ 4
1.4 Safety instructions............................................................................................................ 4
2 Device description 5
2.1 Device description ............................................................................................................ 5
2.2 Marking............................................................................................................................. 5
2.3 Safety specifications......................................................................................................... 7
2.4 Flammable products ........................................................................................................ 7
2.5 Ambient temperature / temperature classes.................................................................. 8
2.6 Electrical data................................................................................................................... 9
3 Installation 10
3.1 Mounting ......................................................................................................................... 10
3.2 Special conditions........................................................................................................... 11
4 Electrical connections 12
4.1 General notes ................................................................................................................. 12
4.2 Power supply .................................................................................................................. 12
4.3 Outputs ........................................................................................................................... 13
4.4 Grounding ....................................................................................................................... 13
5 Operation 14
5.1 Start-up........................................................................................................................... 14
5.2 Operation ........................................................................................................................ 14
5.3 Electrostatic charge .......................................................................................................14
6 Service 15
6.1 Maintenance ................................................................................................................... 15
6.2 Dismantling .................................................................................................................... 15
7 Notes 17

SAFETY INSTRUCTIONS 1
3
OPTISWIRL 5080
www.krohne.com04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
1.1 General notes
These additional instructions apply to intrinsically safe versions of vortex flowmeters with
following specifications:
•ATEX category: II 1 G and II 2 D
•Equipment protection level (EPL): Ga and Db
•Ex marking: Ex ia IIC T4 Ga and Ex tb IIIC T103°C Db
They complete the standard documentation 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
and dust.
Conformity with harmonised standards was checked by a notified body in accordance with
EN 60079-0:2012, EN 60079-1:2014, EN 60079-11:2012, EN 60079-26:2007 and
EN 60079-31:2014.
The EU declaration of conformity for the equipment categories 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.
Sira 19ATEX2001 X
Sira 19ATEX2001 XSira 19ATEX2001 X
Sira 19ATEX2001 X

1 SAFETY INSTRUCTIONS
4
OPTISWIRL 5080
www.krohne.com 04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
1.3 Approval according to the IECEx scheme
Conformity of the vortex flowmeter 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 60079-11:2011, IEC 60079-26:2004 and
IEC 60079-31:2013. 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.
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
personnel trained inpersonnel trained in
personnel trained in
explosion protection
explosion protectionexplosion protection
explosion protection!
IECEx SIR 19.0001 X
IECEx SIR 19.0001 XIECEx SIR 19.0001 X
IECEx SIR 19.0001 X
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
OPTISWIRL 5080
www.krohne.com04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
2.1 Device description
Vortex flowmeters measure and display the flow of flammable and non-flammable gases, steam
and liquids. They transmit a 4...20 mA or digital multidrop, and a pulse output signal, as
applicable, using HART
®
communication protocol for remote configuration, calibration and
monitoring.
2.2 Marking
The marking of the devices is shown on the nameplate below. On both the compact devices and
the remote versions, the main plate is located on the signal converter housing. When the
flowmeter is remotely mounted, the junction box on the flow sensor has an nameplate showing
its hazardous location rating.
Compact devices with two signal converters for dual measurement (Dual Version) are each
marked with a nameplate. The details relevant to explosion protection are identical on both
nameplates.
Figure 2-1: Example of a nameplate for the compact version
1 Model number and serial number
2 Marking according to the notified body
3 Note for disposal
4 Manufacturer logo
5 IP rating for enclosure
6 Manufacturer address
7 Note for electrical data
8 Warning for opening enclosure in hazardous areas

2 DEVICE DESCRIPTION
6
OPTISWIRL 5080
www.krohne.com 04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
The certification design feature is printed on the nameplate as part of the model code.
The location of the feature within the model code is position "j" and shown in the following
example:
Example: 50F-abcdefghij
jjjk
•j = E: ATEX intrinsically safe, category II 1 G and II 2 D
•j = L: IECEx intrinsically safe, EPL Ga and Db
Example: 50W-abcdefghij
jjjk
•j = E: ATEX intrinsically safe, category II 1 G and II 2 D
•j = L: IECEx intrinsically safe, EPL Ga and Db
Figure 2-2: Example of a nameplate for the remote version
1 Model number and serial number
2 Product designation
3 IP rating for enclosure
4 Warning for opening enclosure in hazardous areas
5 Note for disposal
6 Marking according to the notified body
7 Note for electrical data
8 Manufacturer logo and address

DEVICE DESCRIPTION 2
7
OPTISWIRL 5080
www.krohne.com04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
2.3 Safety specifications
2.4 Flammable products
Atmospheric conditions:
Atmospheric conditions:Atmospheric conditions:
Atmospheric conditions:
The standard atmospheric conditions under which it may be assumed that Ex equipment can be
operated are:
•Temperature: -20...+60°C / -4...+140°F
•Pressure: 80...110 kPa (0.8...1.1 bar) / 11.6...15.9 psi
•Air with normal oxygen content, typically 21%v/v
Ex equipment operating outside the standard temperature range must be tested and certified
(e.g. for ambient temperature range -40...+65°C / -40...+149°F).
Ex equipment operating outside the standard atmospheric pressure range and standard oxygen
content is not permitted.
Operating conditions:
Operating conditions:Operating conditions:
Operating conditions:
Vortex flowmeters operate outside the standard atmospheric pressure range, which means that
explosion protection, regardless of the zone assignment, is fundamentally not applicable for the
measuring unit (piping).
Type of protection Hazardous area classification
Gas environment
Gas environmentGas environment
Gas environment
Equipment protection by intrinsic safety:
Equipment protection by intrinsic safety:Equipment protection by intrinsic safety:
Equipment protection by intrinsic safety:
ATEX category: II 1 G
Equipment protection level (EPL): Ga
Ex marking: Ex ia IIC T4 Ga
Compact and remote versions
Zone 0, zone 1 or zone 2
Gas group IIA, IIB or IIC
Temperature class range T1...T4
Dust environment
Dust environmentDust environment
Dust environment
Dust ignition protection by enclosure:
Dust ignition protection by enclosure:Dust ignition protection by enclosure:
Dust ignition protection by enclosure:
ATEX category: II 2 D
Equipment protection level (EPL): Db
Ex marking: Ex tb IIIC T103°C Db
Compact and remote versions
Zone 21 or zone 22
Dust group IIIA, IIIB or IIIC
Maximum surface temperature 103°C/
217°F at process and ambient
temperature 80°C/176°F
Table 2-1: Safety specifications
CAUTION!
Operation with flammable products is only permitted as long as no explosive fuel/air mixture
builds up inside of the piping at the same time the atmospheric conditions are exceeded.
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 piping.

2 DEVICE DESCRIPTION
8
OPTISWIRL 5080
www.krohne.com 04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
2.5 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 table.
The tables take into account the following parameters:
•Ambient temperature T
amb
•Product temperature T
m
INFORMATION!
The maximum permissible process 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.
Temperature class Permissible ambient
temperature
Permissible process temperature
T4 -40...+80°C / -40...+176°F-40...+130°C / -40...+266°F
T3 -40...+80°C / -40...+176°F 1-40...+190°C / -40...+374°F
T2 -40...+80°C / -40...+176°F 1-40...+290°C / -40...+554°F
T1 -40...+80°C / -40...+176°F 1-40...+430°C / -40...+806°F
Table 2-2: Permissible ambient and process temperatures
1For safe operation derate the ambient temperature to a lower value that ensures the housing temperature does not
exceed 80°C / 176°F at the housing reference point.
WARNING!
Process temperatures above 130
° C / 266 ° F are permitted only if the temperature 80 ° C/176 ° F at
the housing reference point is not exceeded during operation. The operator has to ensure the
temperature limit by temperature measurements at the housing reference point. For high
temperature applications positioning the electronics housing to the side or bottom and/or piping
insulation is recommended to assure the temperature limit is not exceeded.
INFORMATION!
The housing reference point is located next to the flowmeters external ground terminal.
INFORMATION!
When the LCD indicator is used, the low temperature limit is -20
° C/-4 ° F.

DEVICE DESCRIPTION 2
9
OPTISWIRL 5080
www.krohne.com04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
2.6 Electrical data
Signal circuits
Signal circuitsSignal circuits
Signal circuits
The vortex flowmeter signal circuits may only be connected to separate, certified, intrinsically
safe isolating amplifiers or Zener barriers connected to separate, intrinsically safe circuits with
the following maximum values per circuit:
The pulse output circuit is considered to be active. The following maximum values apply:
Pulse output maximum values
Pulse output maximum valuesPulse output maximum values
Pulse output maximum values
U
o
=6.51V;I
o
=6.6mA
Flow sensor circuits
Flow sensor circuitsFlow sensor circuits
Flow sensor circuits
With the compact device, the intrinsically safe flow sensor circuits are designed as internal
circuits.
When it comes to the remote versions, the intrinsically safe flow sensor circuits are led through.
Signal circuit
Terminals
U
i
[V] I
i
[mA] P
i
[W] C
i
[nF] L
i
[μH]
Current output 4...20 mA HART
®
+, -
30 110 0.8 0 0
Pulse output
+, - 30 110 0.8 0.3 0
Table 2-3: Maximum values for signal circuits
WARNING!
The negative terminal for current output shall only be connected to a load resistor connected to
the negative side of the incoming power supply.
INFORMATION!
The verification of intrinsic safety is not necessary for the interconnection of vortex flow sensor
connected to the signal converter, if the cable length doesn't exceed 15 m / 50 ft using the
supplied cable.

3 INSTALLATION
10
OPTISWIRL 5080
www.krohne.com 04/2020 - 4007962401 - AD OPTISW5080 Exi Ga-Db en R01
3.1 Mounting
Installation 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.
Important notes for mounting
Important notes for mountingImportant notes for mounting
Important notes for mounting
•Ensure area is known to be non hazardous before removing cover.
•Do not open when energised or when an explosive atmosphere may be present.
•Explosion hazard: Substitution of components may impair intrinsic safety.
•Explosion hazard: Do not disconnect equipment unless power has been turned off or the area
is known to be non hazardous.
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.