KROHNE SMARTPAT COND 5200 Wiring diagram

Digital conductivity sensor
Category
II 1 G
EPL Ga
SMARTPAT COND 5200 Supplementary Instructions
© KROHNE 03/2022 - 4004007703 - MA SMARTPAT COND 5200 R03 en AD

CONTENTS
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SMARTPAT COND 5200
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 UK conformity................................................................................................................... 4
1.5 Safety instructions............................................................................................................ 4
2 Device description 5
2.1 Device description ............................................................................................................ 5
2.2 Marking............................................................................................................................. 6
2.3 Flammable products ........................................................................................................ 7
2.4 Device category ................................................................................................................ 7
2.5 Protection type for gas hazardous areas......................................................................... 8
2.6 Temperature classes....................................................................................................... 8
2.7 Electrical data................................................................................................................... 9
3 Installation 10
3.1 Installation...................................................................................................................... 10
3.2 Specific conditions of use............................................................................................... 10
4 Electrical connections 11
4.1 General notes ................................................................................................................. 11
4.2 Power supply .................................................................................................................. 11
4.3 Inputs/outputs ................................................................................................................ 11
4.4 Grounding and equipotential bonding............................................................................ 12
5 Operation 13
5.1 Starting up for the first time .......................................................................................... 13
5.2 Operation ........................................................................................................................ 13
5.3 Electrostatic charge ....................................................................................................... 13
6 Service 14
6.1 Maintenance ................................................................................................................... 14
6.2 Dismantling .................................................................................................................... 14
7 Notes 15

SAFETY INSTRUCTIONS 1
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1.1 General notes
This additional Ex instruction applies to explosion-protected versions of the sensors with the
marking II 1 G. It completes the standard documentation for non-explosion protected versions.
The information given in these instructions contains only the data relevant to explosion
protection. The technical details given in the standard documentation 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 EC declaration of conformity on his own responsibility
conformity with the protection goals of directive 2014/34/EU for use in hazardous areas with gas.
Conformity with harmonised standards was checked by a notified body in accordance with
EN IEC 60079-0:2018 and EN 60079-11:2012.
The EC declaration of conformity is based on the EC type examination certificate
You can download the EC type examination certificate from the manufacturer's website.
1.3 Approval according to the IECEx scheme
Conformity with IECEx standards was tested in accordance with the IECEx Certification Scheme
for Explosive Atmospheres acc. to IEC 60079-0:2018 and IEC 60079-11:2012 . The number of the
IECEx certificate is:
You can download the IECEx certificate from the official IECEx website www.iecex.com or from
the manufacturer's website.
KIWA 14ATEX0002 X
IECEx KIWA 14.0004X

1 SAFETY INSTRUCTIONS
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1.4 UK conformity
The manufacturer declares with the UK declaration of conformity on his own responsibility
conformity with the protection goals of "Equipment and Protective Systems Intended for use in
Potentially Explosive Atmospheres Regulations 2016". Conformity with the regulations was
checked in accordance with EN IEC 60079-0:2018 and EN 60079-11:2012 by an UK Approved
Body.
The UK declaration of conformity is based on the UK type examination certificate issued by CSA
Group:
If necessary, the UK type examination certificate can be downloaded from the manufacturer's
website.
1.5 Safety instructions
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
CSAE 21UKEX2617X
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
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2.1 Device description
The intended use of the sensor is the measurement of conductivity in conductive liquids. It has a
connection for a 4...20 mA current output with HART® communication.
The connection is designed as a plug connector and at the same time supplies the sensor with
power.
1 VP 2.0 connector
2 PEEK housing
3 G3/4 A thread (male) or 3/4-14 NPT (male)
4 Electrodes: graphite, PES

2 DEVICE DESCRIPTION
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2.2 Marking
The marking of the device is shown on the nameplate below, clearly visible on the main body of
the device.
Figure 2-1: Example nameplate ATEX
1 Manufacturer
2 Device name
3 Cell constant
4 TAG number
5 Order code
6 Serial number, D14xxxxxxx = Year of manufacture 2014
7 Ex data acc. to KIWA 14ATEX0002 X or IECEx KIWA 14.0004X or CSAE 21UKEX2617X
8 Manufacturing date / Ingress protection
9 Observe the installation and operating instructions
SMARTPAT COND 5200
KIWA 14ATEX0002 X
Ex ia IIC T6...T4 Ga
SN: D14xxxxxxx
0102
VGS C 1234567
II1G
TAG: ABCD1234
c = 1 ER 1.0.0
2015-09-24 IP 68
KROHNE Messtechnik GmbH
47058 Duisburg, Germany

DEVICE DESCRIPTION 2
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2.3 Flammable products
Atmospheric conditions:
The standard atmospheric conditions according to IEC 60079-0 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 must be tested and certified for the intended operating temperature range (e.g. for
ambient temperature range -10...+80°C / 14...+176°F).
Ex equipment operating outside the specified above standard atmospheric conditions is
permitted only via risk assessment of the user and additional measures, as necessary.
Operating conditions:
The sensor part of SMARTPAT COND 5200 may operate outside the standard atmospheric
pressure range, which means that explosion protection may not be applicable for the sensor part
(piping).
2.4 Device category
The sensor is designed in category II 1 G for use in zone 0.
For more information refer to chapter "Flammable products".
DANGER!
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 sensor is operated safely in terms of temperature
and pressure, as well as the medium used. In case of operation with flammable media the
sensor must be included in the periodic pressure tests of the plant!
The sensor housing is made from non-conductive PVDF. In order to avoid danger from
electrostatic charge, the minimum conductivity of the media must be 10 nS/cm.
INFORMATION!
Definition of zone 0 according to EN 1127-1:
An area in which an explosive atmosphere, as a result of the mixture of flammable substances in
the form of gas, vapours or mist with air, is continuously or for long periods or frequently
present.

2 DEVICE DESCRIPTION
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2.5 Protection type for gas hazardous areas
In type of protection "Intrinsic Safety" the sensor meets the requirements of EN 60079-11. The
explosion protection is ensured by limitation of the current and voltage so that no ignitable
energy can occur.
The marking of the sensor is:
II 1G Ex ia IIC T6...T4 Ga
2.6 Temperature classes
The permissible temperature range depending on the temperature class of the sensor is:
The maximum permissible temperatures are valid under the following conditions:
•The sensor is operated in its intended mounting position.
•The sensor is not exposed to heat radiation (e.g. direct sunlight, adjoining hot parts).
•Insulation does not obstruct the ventilation of the sensor.
Components of the Ex marking and their definition
II Group II explosion protection
1Equipment category 1
GGas explosion protection
Ex ia Intrinsically safe equipment, protection level ia
IIC Gas groups IIA, IIB, IIC approved
T6...T4 Temperature class range T6...T4
Ga EPL Ga approved, suitable in zone 0, zone 1, zone 2
Temperature
class
Permissible ambient temperature in
[°C]
Permissible product temperature in
[°C]
T4 -10...+80°C 0...+130°C
T6 -10...+40°C 0...+85°C
Temperature
class
Permissible ambient temperature in
[°F]
Permissible product temperature in
[°F]
T4 14...+176°F 32...+266°F
T6 14...+104°F 32...+185°F
INFORMATION!
The sensor has several temperature class information due to different ambient temperature
ranges. In principle, operation is possible in all ranges of the temperature classes T1...T6.

DEVICE DESCRIPTION 2
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2.7 Electrical data
Connect the sensor only to intrinsically-safe certified circuits. Observe the following maximum
values for the sensor when connecting:
•Ui = 30 V
•Ii = 120 mA
•Pi = 1.0 W
•Li = 10 µH
•Ci = 5 nF
CAUTION!
Capacity and inductance of the connecting cable have to be considered.
INFORMATION!
For information about rated data and the HART interface consult the standard documentation.
The internal intrinsically safe electrode circuit is limited to the following maximum values:
• Uo = 7.8 V
• Io = 15.5 mA
• Po = 30.5 mW
The connections for the intrinsically safe 4...20 mA sensor circuit are galvanically isolated from
the electrode circuit (test voltage 500 Veff).

3 INSTALLATION
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3.1 Installation
Mounting of the sensor
• Ensure that you use a gasket suitable for the dimensions of the process connection and the
requirements of the measuring point.
• Carefully lower the sensor into the pipe.
• Observe all the relevant regulations.
3.2 Specific conditions of use
The specific conditions of use mentioned in the certificate are as follows:
•For temperature data, refer to section 2.6 of this supplementary manual.
•The Conductivity Sensor shall be installed in such a way that danger of electrostatic
discharge is prevented. The equipment may only be cleaned with a wet cloth.
DANGER!
The manufacturer is not liable for any damage or injuries 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.
DANGER!
Installation and setup must be carried out according to the applicable installation standards (e.g.
IEC 60079-14) by qualified personnel trained in explosion protection. Observe the information
contained in the manuals and the supplementary instructions. The installation must always
comply with the following requirements:
• No external forces are affecting the sensor.
• The device is accessible for any necessary visual inspections and can be viewed from all
sides.
• The nameplate is clearly visible.
• All gaskets are suitable for the intended use.

ELECTRICAL CONNECTIONS 4
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4.1 General notes
In order to avoid risks, always observe the following points when electrically connecting a
sensor:
•Ensure that all connecting cables conform to the valid installation standards (e.g. IEC 60079-
14) and withstand the maximum operating temperature.
•Securely lay the connecting cables and sufficiently protect them against damage.
•Securely connect all the cores not in use with the ground potential of the explosive area or
carefully insulate them from each other and from ground (test voltage  500Veff).
4.2 Power supply
The sensor does not require a separate power supply. The required supply for the electronics is
provided via the 4...20 mA current output.
4.3 Inputs/outputs
The connector pin assignment of the sensor is described in the standard documentation. The
signal circuits of the sensor may only be connected to certified intrinsically safe slave units or
circuits. For more information refer to chapter "Electrical data".
INFORMATION!
When connecting the sensor cable, observe the standard documentation for the sensor, the
chapter "Installation" .
When using junction box SJB 200 W-Ex, the corresponding handbook must also be observed.

4 ELECTRICAL CONNECTIONS
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4.4 Grounding and equipotential bonding
The sensors have no ground connection and no connection for the equipotential bonding.
The cable shield of the sensor cable should be connected to ground according to applicable
installation regulations (IEC 60079-14).
When using junction box type SJB 200 W-Ex, the shield of the sensor cable must be connected to
the shield connector provided. This will ensure sufficient electrostatic grounding and at the
same time prevent unacceptably high equalizing currents.
INFORMATION!
The connections for the intrinsically safe 4...20 mA sensor circuit are galvanically isolated from
both the electrode circuit and the ground and can be considered ground-free (test voltage
500 Veff). It is accepted that the electrode circuit can be directly connected to the ground
potential.

OPERATION 5
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5.1 Starting up for the first time
To avoid injury and material damage, only operate the sensor under the following conditions:
•The equipment has to be installed and connected in accordance with the manufacturer's
instructions.
•At the operator's request, a check was conducted prior to start-up to ensure the correct
installation and connection.
•The check prior to start-up was in compliance with the national regulations for checks before
start-up.
5.2 Operation
To avoid injury and material damage, only operate the sensor under the following conditions:
•Temperatures, pressures and electrical limit values are in the manufacturer's specified
range.
•The equipment parts necessary for safety are effective in the long run, never disable them
during operation!
•Include the sensor in the periodic pressure tests of the plant when operating with flammable
products.
5.3 Electrostatic charge
In order to avoid ignition hazards due to electrostatic charge, the sensors may not be used in
areas where:
•processes that generate strong charges,
•mechanical friction and cutting processes,
•spraying of electrons (e.g. in the vicinity of electrostatic painting systems),
•dust carried by compressed air.
INFORMATION!
Observe the information regarding calibration in the standard documentation.
CAUTION!
When using the sensor, and in particular after connecting the connector, ensure that it is
connected properly. Otherwise the degree of IP protection is not guaranteed.
WARNING!
Caution: Plastic part! Electrostatic charging of the housing surface by friction must be avoided.
The sensors must not be cleaned using the dry method.
The sensor housing is made from non-conductive PVDF. In order to avoid danger from
electrostatic charge, the minimum conductivity of the media must be 10 nS/cm.

6 SERVICE
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6.1 Maintenance
For systems in hazardous areas, regular checks are required in order to maintain the proper
condition. The manufacturer recommends the following maintenance measures:
•Check the housing, connector and the feed lines for corrosion and/or damage.
•Check the process connection for leaks.
•Check the entire sensor for dust deposits.
6.2 Dismantling
In order to prevent injury or material damage when replacing the sensor, always observe the
following points:
•Before dismantling the electrical connecting lines of the device, ensure that all the cables
leading to the sensor are de-energized themselves and to the reference potential of the
explosive area.
•All the relevant process pipes or containers must be depressurized before dismounting the
sensor.
•If the process pipes or the container contain products that are harmful to the environment or
to health, implement the appropriate safety measures before dismantling the sensor.
•Replace all the seals when reinstalling the device in the process pipe or container.
CAUTION!
Maintenance measures of a safety-relevant nature within the meaning of explosion protection
may only be carried out by the manufacturer, his authorised representative or under the
supervision of authorised inspectors.

NOTES 7
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