KROHNE OPTISWIRL 4200 Wiring diagram

Vortex flowmeter
Equipment protection level EPL Gb / Db
in type of protection Flameproof enclosure "d" and
in type of protection Equipment dust-ignition protection by enclosure "t"
OPTISWIRL 4200
OPTISWIRL 4200OPTISWIRL 4200
OPTISWIRL 4200 Supplementary Instructions
Supplementary InstructionsSupplementary Instructions
Supplementary Instructions
© KROHNE 01/2019 - 4007443601 - AD OPTISWIRL4200 EAC Exd R01 en

CONTENTS
2
www.krohne.com 01/2019 - 4007443601 - AD OPTISWIRL4200 EAC Exd R01 en
OPTISWIRL 4200
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 TR CU 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 Description code............................................................................................................... 5
2.3 Marking............................................................................................................................. 6
2.4 Flammable products ........................................................................................................ 8
2.5 Types of protection ........................................................................................................... 8
2.6 Ambient temperature / temperature classes................................................................ 10
2.7 Surface temperature for equipment protection level Db .............................................. 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) ................................................................... 25
5 Operation 26
5.1 Start-up........................................................................................................................... 26
5.2 Operation ........................................................................................................................ 26
5.3 Electrostatic charge .......................................................................................................27
6 Service 28
6.1 Maintenance ................................................................................................................... 28
6.2 Dismantling .................................................................................................................... 28
7 Notes 30

SAFETY INSTRUCTIONS 1
3
OPTISWIRL 4200
www.krohne.com01/2019 - 4007443601 - AD OPTISWIRL4200 EAC Exd R01
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 protection level 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.
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 TR CU conformity
Conformity of the vortex flowmeter for use in hazardous areas was tested in accordance with the
Custom Union Technical Regulation TR CU 012/2011.
The number of the certificate is:
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 IECEx certificate can be downloaded from the manufacturer's website.
TC RU C-DE.AA87.B.01095
TC RU C-DE.AA87.B.01095TC RU C-DE.AA87.B.01095
TC RU C-DE.AA87.B.01095
IECEx KIWA 15.0021X
IECEx KIWA 15.0021XIECEx KIWA 15.0021X
IECEx KIWA 15.0021X

1 SAFETY INSTRUCTIONS
4
OPTISWIRL 4200
www.krohne.com 01/2019 - 4007443601 - AD OPTISWIRL4200 EAC Exd R01
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
OPTISWIRL 4200
www.krohne.com01/2019 - 4007443601 - AD OPTISWIRL4200 EAC Exd R01
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 for connecting to a
Foundation Fieldbus or Profibus PA. Signal converters with signal output have a separate binary
output and a separate current input.
2.2 Description code
The safety description code consists of the following elements*:
Figure 2-1: Safety description code for the compact version
1 Product designation
2 Type series
3 Compact version
4 Electrical signal output
free - current output 4...20 mA with optional HART
®
communication
FF - Foundation Fieldbus bus connection
PA - Profibus PA bus connection
5 Ex - explosion-protected version
Figure 2-2: Safety description code for the signal converter of the remote version
1 Product designation
2 Type series
3 Remote version
4 Electrical signal output
free - current output 4...20 mA with optional HART
®
communication
FF - Foundation Fieldbus bus connection
PA - Profibus PA bus connection
5 Sensor electronics VFC 020
6 Ex - explosion-protected version