0
BA01147C/07/EN/05.20
71464661
2020-01-31
Products Solutions Services
Operating Instructions
Condumax CLS15D/16D/21D
Sensors with Memosens protocol
For conductive measurement of conductivity in
liquids
EU Declaration of Conformity Condumax CLS15D/16D/21D
EU Declaration of Conformity
ATEX / NEPSI II 1G Ex ia IIC T3/T4/T6 Ga, IECEx Ex ia IIC T3/T4/T6 Ga
2 Endress+Hauser
Condumax CLS15D/16D/21D EU Declaration of Conformity
ATEX/NEPSI II 3G Ex ic IIC T3/T4/T6 Gc
Endress+Hauser 3
Table of contents Condumax CLS15D/16D/21D
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
4 Endress+Hauser
Condumax CLS15D/16D/21D About this document
1 About this document
1.1 Warnings
Structure of information Meaning
DANGER
L
Causes (/consequences)
If necessary, Consequences of noncompliance (if applicable)
Corrective action
‣
WARNING
L
Causes (/consequences)
If necessary, Consequences of noncompliance (if applicable)
Corrective action
‣
CAUTION
L
Causes (/consequences)
If necessary, Consequences of noncompliance (if applicable)
Corrective action
‣
NOTICE
Cause/situation
If necessary, Consequences of noncompliance (if applicable)
Action/note
‣
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious injury.
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious injury.
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
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
Endress+Hauser 5
Basic safety instructions Condumax CLS15D/16D/21D
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.
6 Endress+Hauser
Condumax CLS15D/16D/21D Basic safety instructions
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.
Endress+Hauser 7
Basic safety instructions Condumax CLS15D/16D/21D
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)
Condumax CLS15D - B/L ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +100 °C (T4)
-20 °C ≤ Ta ≤ +50 °C (T6)
Condumax CLS16D - ** ** G -5 °C ≤ Ta ≤ +135 °C (T3)
-5 °C ≤ Ta ≤ +115 °C (T4)
-5 °C ≤ Ta ≤ +65 °C (T6)
Condumax CLS21D - * ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +115 °C (T4)
-20 °C ≤ Ta ≤ +65 °C (T6)
II 1G
II 1G
II 1G
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)
Condumax CLS15D - B/L ** V -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +100 °C (T4)
-20 °C ≤ Ta ≤ +50 °C (T6)
8 Endress+Hauser
II 3G
II 3G
Condumax CLS15D/16D/21D Incoming acceptance and product identification
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)
Condumax CLS21D - * ** V -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +115 °C (T4)
-20 °C ≤ Ta ≤ +65 °C (T6)
II 3G
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.
Endress+Hauser 9
Incoming acceptance and product identification Condumax CLS15D/16D/21D
3.2 Product identification
3.2.1 Type code for versions with explosion protection
Name Type Version
Condumax CLS15D
CLS16D
CLS21D
Name Type Version
Condumax CLS15D
CLS16D
CLS21D
Name Type Version
Condumax CLS15D
CLS16D
CLS21D
-
*
-
**
-
*
Process connections,
materials not Ex-relevant
-
*
-
**
-
*
Process connections,
materials not Ex-relevant
-
*
-
**
-
*
Process connections,
materials not Ex-relevant
**
**
**
**
**
**
**
**
**
G
G
G
For use in hazardous areas, ATEX/NEPSI II 1G Ex ia IIC
T3/T4/T6 Ga, IECEx Ex ia IIC T3/T4/T6 Ga
O
O
O
For use in hazardous areas, FM/CSA IS/NI Cl I Div.1&2
Gr. A-D
V
V
V
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
10 Endress+Hauser
Condumax CLS15D/16D/21D Incoming acceptance and product identification
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
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
Endress+Hauser 11
mark
Incoming acceptance and product identification Condumax CLS15D/16D/21D
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.
12 Endress+Hauser
Condumax CLS15D/16D/21D Installation
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 Tpiece 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.
‣
Endress+Hauser 13
Installation Condumax CLS15D/16D/21D
2
1
3
35 .38(1 )
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
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)
2 With NPT ½" thread in flow assembly
71042405, dimensions in mm (inch)
1 Sensor holder NPT ½"
2 Inlet
3 Outlet
3 Glue-in adapter coupling (for DN 32, 40, 50)
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.
14 Endress+Hauser
A0019014
Condumax CLS15D/16D/21D Installation
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
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. Sheetmetal 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).
A0019017
Endress+Hauser 15
Installation Condumax CLS15D/16D/21D
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
16 Endress+Hauser
6 Installation in flow assembly CLA752
A0035650
Condumax CLS15D/16D/21D Electrical connection
A B
D
The Dipfit CLA111 immersion assembly is available for installing sensors with G1 thread in
vessels.
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
WARNING
L
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.
‣
Endress+Hauser 17
A0024145
Electrical connection Condumax CLS15D/16D/21D
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
5.1 Quick wiring guide
5.1.1 Sensors for zone 0
8 Electrical connection in hazardous environment
18 Endress+Hauser
A0031174
Condumax CLS15D/16D/21D Electrical connection
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
5.1.2 Sensors for zone 2
9 Electrical connection in hazardous environment
Endress+Hauser 19
A0031184
Electrical connection Condumax CLS15D/16D/21D
GN/YE
YE
GN
BN
WH
GND
+
–
Com A
Com B
GY
5.2 Connecting the sensor
The electrical connection simulator to the transmitter is established using measuring cable
CYK10.
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?
Electrical connection Action
Are the mounted cables strain-relieved and not twisted?
Is a sufficient length of the cable cores stripped, and are the
cores positioned in the terminal correctly?
Are all the screw terminals properly tightened?
20 Endress+Hauser
Perform a visual inspection.
‣
Untwist the cables.
‣
Pull gently to check they are seated correctly.
‣
Tighten the screw terminals.
‣
Condumax CLS15D/16D/21D Commissioning
Device condition and specifications Action
Are all cable entries mounted, tightened and leak-tight? In the case of lateral cable entries:
Point cable loops downward so that water can
Are all cable entries installed downwards or mounted laterally?
‣
drip off.
6 Commissioning
Prior to initial commissioning, ensure that:
• The sensor is correctly installed
• The electrical connection is correct
If using an assembly with automatic cleaning function:
Check that the cleaning medium (water or air, for example) is connected correctly.
‣
WARNING
L
Escaping process medium
Risk of injury from high pressure, high temperatures or chemical hazards!
Before applying pressure to an assembly with cleaning system, ensure that the system has
‣
been connected correctly.
If you cannot reliably establish the correct connection, do not install the assembly in the
‣
process.
Following commissioning, the sensor must be serviced at regular intervals, as only then
can reliable measurement be guaranteed.
Operating Instructions for the transmitter used, such as BA01245C if using the Liquiline
CM44x or CM44xR.
7 Maintenance
CAUTION
L
Corrosive chemicals
Risk of chemical burns to the eyes and skin and risk of damage to clothing and equipment!
It is absolutely essential to protect the eyes and hands properly when working with acids,
‣
alkalis and organic solvents!
Wear protective goggles and safety gloves.
‣
Clean away splashes on clothes and other objects to prevent any damage.
‣
Comply with instructions in the safety data sheets for the chemicals used.
‣
Endress+Hauser 21
Repair Condumax CLS15D/16D/21D
WARNING
L
Thiocarbamide
Harmful if swallowed! Limited evidence of carcinogenicity! Possible risk of harm to the unborn
child! Dangerous for the environment with long-term effects!
Wear protective goggles, protective gloves and appropriate protective clothing.
‣
Avoid all contact with the eyes, mouth and skin.
‣
Avoid discharge into the environment.
‣
Clean away fouling on the sensor as follows depending on the type of fouling:
1. Oily and greasy films:
Clean with fat solvent, e.g. alcohol, or hot water and agents containing surfactants
(alkaline) (e.g. dishwashing detergent).
2. Lime and metal hydroxide buildup and low solubility (lyophobic) organic buildup:
Dissolve buildup with diluted hydrochloric acid (3 %) and then rinse thoroughly with
plenty of clear water.
3. Sulfidic buildup (from flue gas desulfurization or wastewater treatment plants):
Use a mixture of hydrochloric acid (3 %) and thiocarbamide (commercially available)
and then rinse thoroughly with plenty of clear water.
4. Buildup containing proteins (e.g. food industry):
Use a mixture of hydrochloric acid (0.5 %) and pepsin (commercially available) and then
rinse thoroughly with plenty of clear water.
5. Readily soluble biological buildup:
Rinse with pressurized water.
After cleaning, rinse the sensor thoroughly with water.
8 Repair
8.1 Sealing ring replacement and recalibration (CLS16D only)
Intact seals are a prerequisite for safe and reliable measurements. The seal should be replaced
at regular intervals to guarantee maximum sensor operational safety and hygiene.
Practical repair intervals can only be determined by the user as they depend greatly on the
operating conditions, such as:
• Type and temperature of the product
• Type and temperature of the cleaning agent
• Number of cleanings
• Number of sterilizations
• Operating environment
22 Endress+Hauser
Condumax CLS15D/16D/21D Repair
Recommended intervals for seal replacement (reference values)
Application Window
Media with temperatures from 50 to 100 °C (122 to 212 °F) Approx. 18 months
Media with temperatures < 50 °C (122 °F) Approx. 36 months
Sterilization cycles, max. 150 °C (302 °F), 45 min. Approx. 400 cycles
To ensure your sensor is operational again after being exposed to very high loads, you can
have it regenerated in the factory. In the factory, the sensor is fitted with new seals and
recalibrated.
Please contact your sales office for information on replacing the seal and recalibration in the
factory.
8.2 Return
The product must be returned if repairs or a factory calibration are required, or if the wrong
product was ordered or delivered. As an ISO-certified company and also due to legal
regulations, Endress+Hauser is obliged to follow certain procedures when handling any
returned products that have been in contact with medium.
To ensure the swift, safe and professional return of the device:
Refer to the website www.endress.com/support/return-material for information on the
‣
procedure and conditions for returning devices.
8.3 Disposal
The device contains electronic components. The product must be disposed of as electronic
waste.
Observe the local regulations.
‣
Endress+Hauser 23
Technical data Condumax CLS15D/16D/21D
9 Technical data
9.1 Input
9.1.1 Measured variables
• Conductivity
• Temperature
9.1.2 Measuring ranges
Conductivity (in relation to water at 25 °C (77 °F))
CLS15D -A 0.04 to 20 μS/cm
CLS15D -B/L 0.10 to 200 μS/cm
CLS16D 0.04 to 500 μS/cm
CLS21D 10 μS/cm to 20 mS/cm
Temperature
CLS15D -20 to 100 °C (-4 to 212 °F)
CLS16D -5 to 100 °C (23 to 212 °F)
CLS21D -20 to 100 °C (-4 to 212 °F)
9.1.3 Cell constant
CLS15D -A
k = 0.01 cm
CLS15D -B/L k = 0.1 cm
CLS16D k = 0.1 cm
–1
–1
–1
CLS21D k = 1.0 cm–1, nominal
9.1.4 Temperature compensation
NTC 30K
24 Endress+Hauser
Condumax CLS15D/16D/21D Technical data
9.2 Performance characteristics
9.2.1 Uncertainty of measurement CLS15D
Each individual sensor is factory-measured in a solution of approx. 5 μS/cm for cell constant
0.01 cm-1 or approx. 50 μS/cm for cell constant 0.1 cm-1 using a reference measuring system
traceable to NIST or PTB. The exact cell constant is entered into the manufacturer inspection
certificate supplied. The uncertainty of measurement in determining the cell constant is
1.0 %.
CLS16D
Each individual sensor is factory-measured in a solution of approx. 5 μS/cm using a reference
measuring system traceable to NIST or PTB. The exact cell constant is entered into the
manufacturer inspection certificate supplied. The uncertainty of measurement in determining
the cell constant is 1.0 %.
CLS21D
Each individual sensor is factory-measured in a solution of approx. 5 mS/cmusing a reference
measuring system traceable to NIST or PTB. The exact cell constant is entered into the
manufacturer inspection certificate supplied. The uncertainty of measurement in determining
the cell constant is 1.0 %.
9.2.2 Response time
Conductivity
t95 ≤ 3 s
Temperature
CLS15D-A t90 ≤ 39 s
CLS15D-B/L t90 ≤ 17 s
CLS16D t90 ≤ 13 s
CLS21D t90 ≤ 296 s
9.2.3 Maximum measured error
CLS15D
2% of reading
CLS16D 2 % of reading up to 200 μS/cm
3 % of reading from 200 to 500 μS/cm
CLS21D 5% of reading
9.2.4 Repeatability
0.2% of reading
Endress+Hauser 25
Technical data Condumax CLS15D/16D/21D
9.3 Environment
9.3.1 Ambient temperature
–20 to 60 °C (–4 to 140 °F)
9.3.2 Storage temperature
-25 to +80 °C (-10 to +180 °F)
9.3.3 Degree of protection
IP 68 / NEMA type 6P (1 m water column, 25 °C, 24 h)
9.4 Process
9.4.1 Process temperature
CLS15D
Normal operation -20 to 120 °C (-4 to 248 °F)
Sterilization (max. 1 h)
CLS16D
Normal operation -5 to 120 °C (23 to 248 °F)
Sterilization (max. 45 min) Max. 150 °C (302 °F) at 6 bar (87 psi) absolute
CLS21D -20 to 135 °C (-4 to 275 °F) at 3.5 bar (50 psi)
1)
Max. 140 °C (284 °F)
absolute
1) Threaded versions: max. 30 minutes
The maximum temperature for communication with the transmitter is 130 °C (266°F) for
the Memosens versions.
9.4.2 Process pressure
CLS15D
13 bar (188 psi) absolute, at 20 °C (68 °F)
2 bar (29 psi) absolute, at 120 °C (248 °F)
CLS16D 13 bar (188 psi) absolute, at 20 °C (68 °F)
9 bar (130 psi) absolute, at 120 °C (248 °F)
0.1 bar (1.5 psi) absolute (negative pressure), at
20 °C (68 °F)
CLS21D 17 bar (246 psi) absolute, at 20 °C (68 °F)
26 Endress+Hauser
Condumax CLS15D/16D/21D Technical data
A
14010060
68
20
-4
180 220 260
248
284
14
43
72
101
130
159
188
[psi]
[° ]F
–20
1
[bar]
3
5
7
9
11
13
0 20 40 60 80 100 120 140
[°C]
212
p (abs.)
T
6
–5
20 60 100 120 150
23
60
68
120
180
240
248
300
20 60 100 120 150
302
A
[psi]
[° ]F
[bar]
[°C]
p (abs.)
T
14
43
72
101
130
159
188
1
3
5
7
9
11
13
87
1.5 0.1
9.4.3 Temperature/pressure ratings
CLS15D
A0031428-EN
11 Mechanical pressure-temperature resistance
A Can be sterilized for a short time (1 hour)
CLS16D
12 Mechanical pressure-temperature resistance
A Can be sterilized for a short time (45 min.)
Endress+Hauser 27
A0031431-EN
Technical data Condumax CLS15D/16D/21D
5
9
13
17
300 60 90 120
[°C]
-4
1
10060 140 180 220
72
130
188
-20
14
[°F]
20
68 275
246
[psi]
[bar]
3.5
51
135
p (abs.)
T
20
CLS21D
A0031435-EN
13 Mechanical pressure-temperature resistance
9.5 Mechanical construction
9.5.1 Weight
CLS15D and CLS21D
Approx. 0.3 kg (0.66 lbs) depending on version
CLS16D
Approx. 0.13 to 0.75 kg (0.29 to 1.65 lbs) depending on version
9.5.2 Materials
CLS15D
Electrodes Polished, stainless steel 1.4435 (AISI 316L)
Sensor shaft Polyethersulfone (PES-GF20)
O-ring, in contact with medium
EPDM
(only Clamp version)
CLS16D
Electrodes Electropolished, stainless steel 1.4435 (AISI 316L)
Seal Gasket seal ISOLAST (FFKM), FDA-compliant
28 Endress+Hauser
Condumax CLS15D/16D/21D Technical data
CLS21D
Electrodes Graphite
Sensor shaft Polyethersulfone (PES-GF20)
Thermal conductivity socket for
Titanium 3.7035
temperature probe
Clamp process connection
• Process connection
• Seal
• Stainless steel 1.4435
• EPDM
9.5.3 Process connection
CLS15D
Thread NPT ½" and ¾"
Clamp 1½" as per ISO 2852
CLS16D
Clamp 1", 1½", 2" as per ISO 2852 (also suitable for TRI-CLAMP, DIN 32676)
Tuchenhagen VARIVENT N DN 50 to 125
NEUMO BioControl D50
CLS21D
Thread G1
NPT 1" thread
Clamp 2" as per ISO 2852
Sanitary connection DN 25 and DN 40 as per DIN 11851
9.5.4 Surface roughness (only CLS15D, CLS16D)
CLS15D
Ra ≤ 0.8 μm
CLS16D
Ra ≤ 0.8 μm, electropolished
Ra ≤ 0.38 μm, electropolished, optional
Endress+Hauser 29
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