Endress+Hauser CLS15D User manual

Products Solutions Services
Operating Instructions
Condumax CLS15D/16D/21D
Sensors with Memosens protocol
For conductive measurement of conductivity in
liquids
0
BA01147C/07/EN/05.20
71464661
2020-01-31

EU Declaration of Conformity Condumax CLS15D/16D/21D
2 Endress+Hauser
EU Declaration of Conformity
ATEX / NEPSI II 1G Ex ia IIC T3/T4/T6 Ga, IECEx Ex ia IIC T3/T4/T6 Ga

Condumax CLS15D/16D/21D EU Declaration of Conformity
Endress+Hauser 3
ATEX/NEPSI II 3G Ex ic IIC T3/T4/T6 Gc

Table of contents Condumax CLS15D/16D/21D
4 Endress+Hauser
Table of contents
1 About this document ........... 5
1.1 Warnings ........................... 5
1.2 Symbols ............................ 5
2 Basic safety instructions ....... 6
2.1 Requirements for personnel ........... 6
2.2 Designated use ...................... 6
2.3 Workplace safety .................... 6
2.4 Operational safety ................... 7
2.5 Product safety ....................... 7
3 Incoming acceptance and
product identification .......... 9
3.1 Incoming acceptance ................. 9
3.2 Product identification ................ 10
3.3 Scope of delivery .................... 11
3.4 Certificates and approvals ............ 11
4 Installation .................... 13
4.1 Mounting the sensor ................ 13
4.2 Post-installation check ............... 17
5 Electrical connection .......... 17
5.1 Quick wiring guide .................. 18
5.2 Connecting the sensor ............... 20
5.3 Ensuring the degree of protection ..... 20
5.4 Post-connection check ............... 20
6 Commissioning ................ 21
7 Maintenance .................. 21
8 Repair .......................... 22
8.1 Sealing ring replacement and
recalibration (CLS16D only) .......... 22
8.2 Return ............................ 23
8.3 Disposal ........................... 23
9 Technical data ................. 24
9.1 Input .............................. 24
9.2 Performance characteristics .......... 25
9.3 Environment ....................... 26
9.4 Process ............................ 26
9.5 Mechanical construction ............. 28

Condumax CLS15D/16D/21D About this document
Endress+Hauser 5
1 About this document
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious injury.
LWARNING
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious injury.
LCAUTION
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, Consequences of non-
compliance (if applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to property.
1.2 Symbols
Symbol Meaning
Additional information, tips
Permitted or recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic
 Result of a step

Basic safety instructions Condumax CLS15D/16D/21D
6 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for personnel
• Installation, commissioning, operation and maintenance of the measuring system may be
carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the specified
activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions and
must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.
2.2 Designated use
The conductivity sensors are designed for the conductive measurement of the conductivity of
liquids.
They are used in the following fields:
Sensor Applications Hazardous areas
Condumax CLS15D Measurements in pure and ultrapure water Approved for Ex zone 0
Condumax CLS16D Measurements in pure and ultrapure water with hygienic requirements Approved for Ex zone 0
Condumax CLS21D Measurements in media with medium or high conductivity Approved for Ex zone 0
Use of the device for any purpose other than that described, poses a threat to the safety of
people and of the entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
2.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations
• Regulations for explosion protection
Electromagnetic compatibility
• The product has been tested for electromagnetic compatibility in accordance with the
applicable international standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.

Condumax CLS15D/16D/21D Basic safety instructions
Endress+Hauser 7
2.4 Operational safety
Before commissioning the entire measuring point:
1. Verify that all connections are correct.
2. Ensure that electrical cables and hose connections are undamaged.
3. Do not operate damaged products, and protect them against unintentional operation.
4. Label damaged products as defective.
During operation:
‣If faults cannot be rectified:
products must be taken out of service and protected against unintentional operation.
2.5 Product safety
2.5.1 State-of-the-art technology
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
international standards have been observed.
2.5.2 Electrical equipment in hazardous areas
ATEX/NEPSI II 1G Ex ia IIC T3/T4/T6 Ga
• The Memosens inductive sensor-cable connection system is suitable for use in hazardous
areas in accordance with EC type examination certificate BVS 04 ATEX E 121 X. The
corresponding EC declaration of conformity is part of this document.
• The certified conductivity sensors CLS15D/CLS16D/CLS21D may only be connected via the
measuring cable CYK10-G/I*** to the certified intrinsically safe digital sensor output
circuits of measuring device Liquiline M CM42-KE/F/G/I/J********** in accordance with
EC type-examination certificate TÜV 13 ATEX 7459 X.
• The electrical connection must be made according to the wiring diagram of the transmitter.
• Metallic process connection parts must be mounted at the mounting location
electrostatically conductive (< 1 MΩ).
• The CLS15D-type sensors with non-metal process connections and the CLS21D-type
sensors may only be employed for measurement in liquids with a minimum conductivity of
10 nS/cm.
• The CLS15D-type sensors with non-metal process connections may not be operated under
process conditions in which electrostatic charging of the sensor, and particularly of the
electrically insulated outer electrode, is likely to occur.
• Measuring cable CYK10-G/I*** and its terminal head must be protected against
electrostatic charging if it is run through Zone 0.
• The maximum permitted cable length is 100 m.
• Ex versions of digital sensors with Memosens technology are indicated by an orange-red
ring.
• Full compliance with regulations for electrical systems in hazardous areas (e.g. EN/IEC
60079-14) is mandatory when using the devices and sensors.

Basic safety instructions Condumax CLS15D/16D/21D
8 Endress+Hauser
Temperature classes
Name Type Medium temp. Ta for temperature class (Tn) Cat.
Condumax CLS15D - A ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +120 °C (T4)
-20 °C ≤ Ta ≤ +70 °C (T6)
II 1G
Condumax CLS15D - B/L ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +100 °C (T4)
-20 °C ≤ Ta ≤ +50 °C (T6)
II 1G
Condumax CLS16D - ** ** G -5 °C ≤ Ta ≤ +135 °C (T3)
-5 °C ≤ Ta ≤ +115 °C (T4)
-5 °C ≤ Ta ≤ +65 °C (T6)
II 1G
Condumax CLS21D - * ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +115 °C (T4)
-20 °C ≤ Ta ≤ +65 °C (T6)
II 1G
If the specified medium temperatures are complied with, temperatures that are not permitted
for the respective temperature class will not occur on the equipment.
ATEX/NEPSI II 3G Ex ic IIC T3/T4/T6 Gc
• The Memosens inductive sensor-cable connection system is suitable for use in hazardous
areas, Zone 2. The corresponding EU declaration of conformity is part of this document.
• The certified conductivity sensors CLS15D / CLS16D / CLS21D may only be connected via
the measuring cable CYK10-V*** to the certified intrinsically safe digital sensor output
circuits of measuring device Liquiline M CM42-KV*********.
• The electrical connection must be made according to the wiring diagram of the transmitter.
• Metallic process connection parts must be mounted at the mounting location
electrostatically conductive (< 1 MΩ).
• The CLS15D-type sensors with non-metal process connections and the CLS21D-type
sensors may only be employed for measurement in liquids with a minimum conductivity of
10 nS/cm.
• The CLS15D-type sensors with non-metal process connections may not be operated under
process conditions in which electrostatic charging of the sensor, particularly of the
electrically insulated outer electrode, is likely to occur.
• The maximum permitted cable length is 100 m.
• Full compliance with regulations for electrical systems in hazardous areas (EN/IEC
60079-14) is mandatory when using the devices and sensors.
Temperature classes
Name Type Medium temp. Ta for temperature class (Tn) Cat.
Condumax CLS15D - A ** V -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +120 °C (T4)
-20 °C ≤ Ta ≤ +70 °C (T6)
II 3G
Condumax CLS15D - B/L ** V -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +100 °C (T4)
-20 °C ≤ Ta ≤ +50 °C (T6)
II 3G

Condumax CLS15D/16D/21D Incoming acceptance and product identification
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Name Type Medium temp. Ta for temperature class (Tn) Cat.
Condumax CLS16D - ** ** V -5 °C ≤ Ta ≤ +135 °C (T3)
-5 °C ≤ Ta ≤ +115 °C (T4)
-5 °C ≤ Ta ≤ +65 °C (T6)
II 3G
Condumax CLS21D - * ** V -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +115 °C (T4)
-20 °C ≤ Ta ≤ +65 °C (T6)
II 3G
If the specified medium temperatures are complied with, temperatures that are not permitted
for the respective temperature class will not occur on the equipment.
FM/CSA IS/NI Cl.1 Div.1&2 Gr. A-D
Observe the documentation and the control drawings of the transmitter.
3 Incoming acceptance and product identification
3.1 Incoming acceptance
1. Verify that the packaging is undamaged.
 Notify the supplier of any damage to the packaging.
Keep the damaged packaging until the issue has been resolved.
2. Verify that the contents are undamaged.
 Notify the supplier of any damage to the delivery contents.
Keep the damaged goods until the issue has been resolved.
3. Check that the delivery is complete and nothing is missing.
 Compare the shipping documents with your order.
4. Pack the product for storage and transportation in such a way that it is protected
against impact and moisture.
 The original packaging offers the best protection.
Make sure to comply with the permitted ambient conditions.
If you have any questions, please contact your supplier or your local Sales Center.

Incoming acceptance and product identification Condumax CLS15D/16D/21D
10 Endress+Hauser
3.2 Product identification
3.2.1 Type code for versions with explosion protection
Name Type Version
Condumax CLS15D
CLS16D
CLS21D
-
-
-
*
**
*
**
**
**
G
G
G
Process connections,
materials not Ex-relevant
For use in hazardous areas, ATEX/NEPSI II 1G Ex ia IIC
T3/T4/T6 Ga, IECEx Ex ia IIC T3/T4/T6 Ga
Name Type Version
Condumax CLS15D
CLS16D
CLS21D
-
-
-
*
**
*
**
**
**
O
O
O
Process connections,
materials not Ex-relevant
For use in hazardous areas, FM/CSA IS/NI Cl I Div.1&2
Gr. A-D
Name Type Version
Condumax CLS15D
CLS16D
CLS21D
-
-
-
*
**
*
**
**
**
V
V
V
Process connections,
materials not Ex-relevant
For use in hazardous areas, ATEX/NEPSI II 3G Ex ic IIC
T3/T4/T6 Gc
3.2.2 Nameplate
The nameplate provides you with the following information on your device:
• Manufacturer identification
• Order code
• Serial number
• Ambient and process conditions
• Safety information and warnings
• Cell constant (nominal value)
• Degree of protection
• Ex labeling on hazardous area versions
‣Compare the information on the nameplate with the order.
3.2.3 Product identification
Product page
www.endress.com/cls15d
www.endress.com/cls16d

Condumax CLS15D/16D/21D Incoming acceptance and product identification
Endress+Hauser 11
www.endress.com/cls21d
Interpreting the order code
The order code and serial number of your product can be found in the following locations:
• On the nameplate
• In the delivery papers
Obtaining information on the product
1. Go to www.endress.com.
2. Call up the site search (magnifying glass).
3. Enter a valid serial number.
4. Search.
 The product structure is displayed in a popup window.
5. Click on the product image in the popup window.
 A new window (Device Viewer) opens. All of the information relating to your
device is displayed in this window as well as the product documentation.
Manufacturer's address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
3.3 Scope of delivery
The scope of delivery includes:
• Sensor in the version ordered
• Operating Instructions
3.4 Certificates and approvals
3.4.1  mark
Declaration of Conformity
The product meets the requirements of the harmonized European standards. As such, it
complies with the legal specifications of the EU directives. The manufacturer confirms
successful testing of the product by affixing to it the  mark.
3.4.2 Hazardous area approvals
ATEX / NEPSI II 1G Ex ia IIC T3/T4/T6 Ga, IECEx Ex ia IIC T3/T4/T6 Ga
FM/CSA IS/NI Cl. I Div.1&2 Gr. A-D in conjunction with Liquiline M CM42 transmitter

Incoming acceptance and product identification Condumax CLS15D/16D/21D
12 Endress+Hauser
ATEX/NEPSI II 3G Ex ic IIC T3/T4/T6 Gc for use in Zone 2 with Liquiline M CM42-KV***
transmitter
• EAC Ex, 0Ex ia IIC T6/T4/T3 Ga X
• Zone 0
• Certificate number: TC RU C-DE.AA87.B.00088
• The product has been certified in accordance with Directive TR CU 012/2011 which applies
in the European Economic Area (EEA). The EAC conformity mark is affixed to the product.
ATEX and FM/CSA versions of digital sensors with Memosens technology are indicated
by an orange-red ring in the plug-in head (sensors for zone 0) or a white-gray axial ring
(sensors for zone 2).
3.4.3 EHEDG (CLS16D only)
Certified according to EL Class I, only for process connections:
• Clamp 1"
• Clamp 1 1/2"
• Clamp 2"
• Varivent
3.4.4 FDA (CLS16D only)
All materials in contact with the product are listed by the FDA.
3.4.5 Manufacturer inspection certificate
Stating the individual cell constant
3.4.6 Biological reactivity test (USP class VI, CLS16D only)
Biological reactivity test certificate according to USP (United States Pharmacopeia)part <87>
and part <88> class VI with batch traceability of materials in contact with the medium
3.4.7 Inspection certificate in accordance with EN 10204 3.1
A test certificate 3.1 in accordance with EN 10204 is supplied depending on the version (→
Product Configurator on the product page).
3.4.8 ASME (CLS16D only)
Manufactured in accordance with ASME criteria (American Society of Mechanical Engineers)
3.4.9 Ex-certification body
DEKRA EXAM GmbH
Bochum
3.4.10 Marine approvals
A selection of sensors have type approval for marine applications, issued by the following
classification societies: ABS (American Bureau of Shipping), BV (Bureau Veritas), DNV-GL
(Det Norske Veritas-Germanische Lloyd) and LR (Lloyd’s Register). Details of the order codes
of the approved sensors, and the installation and ambient conditions, are provided in the
relevant certificates for marine applications on the product page on the Internet.

Condumax CLS15D/16D/21D Installation
Endress+Hauser 13
4 Installation
4.1 Mounting the sensor
4.1.1 CLS15D
The sensors are installed directly via the process connection thread NPT ½" or ¾" or
clamp 1 ½". As an option, the sensor can also be installed using a commercially available T-
piece or cross fitting or using a flow assembly.
NOTICE
Incorrect mounting or disassembly
The Memosens head could become loose and fall off, resulting in total sensor failure!
‣Only mount the sensor via the process connection.
‣To do so, use a suitable tool, such as an open-ended wrench.

Installation Condumax CLS15D/16D/21D
14 Endress+Hauser
2
1
3
35 .38(1 )
A0019015
 1 With NPT ½" thread in T-piece or cross
fitting
1 T-piece or cross fitting (DN 32, 40 or 50)
2 Glue-in VC threaded coupling (NPT ½" for
DN 20)
3 Glue-in adapter coupling (for DN 32, 40, 50)
NPT ½”
160 (6.30)
Ø 29 (1.14)
Ø 6 (0.24)
30 (1.18)
25 (0.98)
Ø 6 (0.24)
38.5
(1.52)
1
2
3
A0019014
 2 With NPT ½" thread in flow assembly
71042405, dimensions in mm (inch)
1 Sensor holder NPT ½"
2 Inlet
3 Outlet
1. Ensure that the electrodes are fully immersed in the medium during measurement.
Immersion depth: at least 35 mm (1.38").
2. If using the sensor in the ultrapure water range, you must work under air-evacuated
conditions.
 Otherwise, the CO2 in the air can dissolve in the water and its (weak) dissociation
can increase the conductivity by up to 3 µS/cm.

Condumax CLS15D/16D/21D Installation
Endress+Hauser 15
4.1.2 CLS16D
The sensors are installed directly via the process connection.
‣When installing in pipes, pay attention to the flow direction.
A0019016
 3 Permitted flow direction
A0019017
 4 Inadmissible flow direction
1. Ensure that the electrodes are fully immersed in the medium during measurement.
2. If using the sensor in the ultrapure water range, you must work under air-evacuated
conditions.
 Otherwise, the CO2 in the air can dissolve in the water and its (weak) dissociation
can increase the conductivity by up to 3 µS/cm.
4.1.3 CLS21D
Clamp connection
Both sheet-metal brackets and solid brackets can be used to secure the sensor. Sheet-
metal brackets have a lower dimensional stability, uneven bearing surfaces causing point
loads, and sometimes sharp edges that can damage the clamp. We recommend you only
use solid brackets due to their higher dimensional stability. Solid brackets can be used
over the entire pressure/temperature range (see pressure-temperature ratings).

Installation Condumax CLS15D/16D/21D
16 Endress+Hauser
The sensors are installed directly via the process connection. As an option, the sensor can also
be installed via a flow assembly.
NOTICE
Incorrect mounting or disassembly
The Memosens head could become loose and fall off, resulting in total sensor failure!
‣Only mount the sensor via the process connection.
‣To do so, use a suitable tool, such as an open-ended wrench.
A0019019
 5 Installation in flow assembly CLA751
A0035650
 6 Installation in flow assembly CLA752

Condumax CLS15D/16D/21D Electrical connection
Endress+Hauser 17
The Dipfit CLA111 immersion assembly is available for installing sensors with G1 thread in
vessels.
A B D
A0024145
 7 Installation in Dipfit CLA111 immersion assembly, fastening versions A, B and D
Ensure that the electrodes are fully immersed in the medium during measurement.
4.2 Post-installation check
1. Are the sensor and cable undamaged?
2. Is the sensor installed in the process connection and is not suspended from the cable?
5 Electrical connection
LWARNING
Device is live!
Incorrect connection may result in injury or death!
‣The electrical connection may be performed only by an electrical technician.
‣The electrical technician must have read and understood these Operating Instructions and
must follow the instructions contained therein.
‣Prior to commencing connection work, ensure that no voltage is present on any cable.

Electrical connection Condumax CLS15D/16D/21D
18 Endress+Hauser
5.1 Quick wiring guide
5.1.1 Sensors for zone 0
IIC 2G
CPS11D
CPS12D
CPS71D
CPS72D
CPS91D
CPS92D
CPS16D
CPS76D
CPS96D
CPS171D
IIC 1G IIC 3G
EX
Zone 1
Zone 0 Zone 2
CYK10
Ex ia Ga
CPS41D
CPS42D
CYK10
Ex ia Ga
EX
CLS50D
CLS15D
CLS16D
CLS21D
COS22D
COS51D
CPS471D
CPS491D CPS441D
CLS82D
CPS341D
A0031174
 8 Electrical connection in hazardous environment

Condumax CLS15D/16D/21D Electrical connection
Endress+Hauser 19
5.1.2 Sensors for zone 2
CPS11D
CPS12D
CPS71D
CPS72D
CPS91D
CPS92D
CPS16D
CPS76D
CPS96D
CPS171D
EX
CYK10
Ex ic
CPS41D
CPS42D
CYK10
Ex ic
EX
CLS50D
CLS15D
CLS16D
CLS21D
COS22D
COS51D
CPS471D
CPS491D CPS441D
CLS82D
CPS341D
II 3G Zone 2
A0031184
 9 Electrical connection in hazardous environment

Electrical connection Condumax CLS15D/16D/21D
20 Endress+Hauser
5.2 Connecting the sensor
The electrical connection simulator to the transmitter is established using measuring cable
CYK10.
GN/YE
YE
GN
BN
WH
GND
+
–
Com A
Com B
GY
A0024019
 10 Measuring cable CYK10
NOTICE
Mechanical twist protection for CLS15D and CLS21D
If too much force is applied to the Memosens head, this can shear the connections and
therefore destroy the sensor!
‣There is no need to exert excessive force when connecting the sensor to the cable coupling.
Proceed with care!
‣If the Memosens coupling clearly will not close, check the coupling for dirt or mechanical
damage, and make sure that you are turning it in the right direction. Pay attention to the
lock symbol on the coupling!
‣If necessary, use a different Memosens cable.
5.3 Ensuring the degree of protection
Only the mechanical and electrical connections which are described in these instructions and
which are necessary for the required, designated use, may be carried out on the device
delivered.
‣Exercise care when carrying out the work.
Otherwise, the individual types of protection (Ingress Protection (IP), electrical safety, EMC
interference immunity) agreed for this product can no longer be guaranteed due, for example
to covers being left off or cable (ends) that are loose or insufficiently secured.
5.4 Post-connection check
Device condition and specifications Action
Are the sensor, assembly, or cables free from damage on the
outside?
‣Perform a visual inspection.
Electrical connection Action
Are the mounted cables strain-relieved and not twisted? ‣Untwist the cables.
Is a sufficient length of the cable cores stripped, and are the
cores positioned in the terminal correctly?
‣Pull gently to check they are seated correctly.
Are all the screw terminals properly tightened? ‣Tighten the screw terminals.