Endress+Hauser Indumax CLS54 Operating Instructions Manual

Products Solutions Services

Operating Instructions

Indumax CLS54

Conductivity sensor

0

BA01591C/07/EN/03.17
71377428

AUTHORIZED DISTRIBUTOR:
InstrumentsAndControl.com
Houston, Texas USA
[e-mail]
281-609-7170

EU declaration of conformity Indumax CLS54

2 Endress+Hauser

EU declaration of conformity

Indumax CLS54 Table of contents

Endress+Hauser 3

Table of contents

1 Document information ......... 4

1.1 Warnings ........................... 4

1.2 Symbols used ........................ 4

1.3 Symbols on the device ................ 5

2 Basic safety instructions ....... 6

2.1 Requirements for the personnel ........ 6

2.2 Designated use ...................... 6

2.3 Occupational safety .................. 6

2.4 Operational safety ................... 7

2.5 Product safety ....................... 7

3 Incoming acceptance and

product identification .......... 8

3.1 Incoming acceptance ................. 8

3.2 Scope of delivery ..................... 8

3.3 Product identification ................. 9

3.4 Certificates and approvals ............ 10

4 Installation .................... 11

4.1 Installation conditions ............... 11

4.2 Installing the sensor ................. 14

4.3 Dimensions ........................ 15

4.4 Post-installation check ............... 17

5 Electrical connection .......... 18

5.1 Connection conditions ............... 18

5.2 Connecting to the transmitter ......... 19

5.3 Ensuring the degree of protection ..... 19

5.4 Post-connection check ............... 20

6 Maintenance .................. 20

7 Repairs ......................... 21

7.1 Return ............................ 21

7.2 Disposal ........................... 21

8 Accessories .................... 21

8.1 Cable extension ..................... 21

8.2 Calibration solutions ................ 22

9 Technical data ................. 22

Index ................................. 26

Document information Indumax CLS54

4 Endress+Hauser

1 Document information

1.1 Warnings

Structure of information Meaning

L

DANGER

Causes (/consequences)

If necessary, Consequences of non­compliance (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.

L

WARNING

Causes (/consequences)

If necessary, Consequences of non­compliance (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.

L

CAUTION

Causes (/consequences)

If necessary, Consequences of non­compliance (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 non­compliance (if applicable)

‣

Action/note

This symbol alerts you to situations which may result in damage to property.

1.2 Symbols used

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

Indumax CLS54 Document information

Endress+Hauser 5

1.3 Symbols on the device

Symbol Meaning

Reference to device documentation

Basic safety instructions Indumax CLS54

6 Endress+Hauser

2 Basic safety instructions

2.1 Requirements for the 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

Indumax CLS54 is designed for the inductive measurement of the conductivity of liquids. The
sensor is particularly suitable for use in hygienic applications in the food, beverage,
pharmaceutical and biotech industry.

Use with Liquiline CM42, and Liquisys CLM223/253 transmitters; part of the Smartec
CLD134 measuring system.

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 Occupational 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 European standards for industrial applications.

• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.

Indumax CLS54 Basic safety instructions

Endress+Hauser 7

2.4 Operational safety

1. Before commissioning the entire measuring point, verify that all connections are
correct. Ensure that electrical cables and hose connections are undamaged.

2. Do not operate damaged products, and safeguard them to ensure that they are not
operated inadvertently. Label the damaged product as defective.

3. If faults cannot be rectified:
Take the products out of operation and safeguard them to ensure that they are not

operated inadvertently.

2.5 Product safety

2.5.1 State of the art

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
European standards have been observed.

2.5.2 Electrical equipment in hazardous areas

The sensor may be connected to the following transmitters:

• Liquiline M CM42, EC type-examination certificates TÜV 13 ATEX 7459 X, TÜV 14 ATEX
7510 X, TÜV 14 ATEX 7509 X, EX5 05 03 30266 012

• Mycom S CLM153-G, EC type-examination certificate DMT 01 ATEX E 174

CLS54-G****** and CLS54-K******

• The sensor has been developed and manufactured in accordance with the applicable
European standards and guidelines and is suitable for use in hazardous areas.

• The Declaration of Conformity confirms compliance with the harmonized European
standards for using the sensor in hazardous areas and is included in the Operating
Instructions.

• The sensor must be connected and operated in accordance with the associated Operation
Instructions. All sensor operating data must be observed.

• Ensure that it is professionally installed in order to achieve the degree of protection (IP65)
for the housing. Use the original seal, and install the cable entry properly.

• Compliance with the specified ambient and process temperature ranges is a prerequisite for
safe use of the device!

• The sensors may only be used in liquid media with a conductivity >10 nS/cm.

• To avoid electrostatic charges, all CLS54 versions with metal surfaces (depends on process
connection) must be electrostatically connected in such a way that R ≤1 MΩ.

• The maximum permitted length of the measuring cable is 50 m.

• Full compliance with regulations for electrical systems in hazardous areas (EN 60079-14) is
mandatory when using the devices and sensors.

Incoming acceptance and product identification Indumax CLS54

8 Endress+Hauser

Temperature classes

Temperature class Ambient temperature range T

a

Medium temperature range T

med

T6 -20 °C to +60 °C -10 °C ≤ T

med

≤ + 55 °C

T4 -10 °C ≤ T

med

≤ + 105 °C

T3 -10 °C ≤ T

med

≤ + 125 °C

1)

1) 150 °C for maximum 60 min

Sensors with CSA approval (CLS504-O******)

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 your supplier of any damage to the packaging.

Keep the damaged packaging until the matter has been settled.

2. Verify that the contents are undamaged.
 Notify your supplier of any damage to the delivery contents.

Keep the damaged products until the matter has been settled.

3. Check the delivery for completeness.
 Check it against the delivery papers and 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.

The permitted ambient conditions must be observed (see "Technical data").

If you have any questions, please contact your supplier or your local sales center.

3.2 Scope of delivery

The scope of delivery includes:

• Sensor in the version ordered

• Operating Instructions

Indumax CLS54 Incoming acceptance and product identification

Endress+Hauser 9

3.3 Product identification

3.3.1 Type code for versions with explosion protection

Name Type Version

Indumax CLS54 - G xxx x x x + x

for use in hazardous areas, ATEX II 1G
Ex ia IIC T3/T4/T6 Ga

Process connections, additional options,
cable connection, temperature sensor,
identification
No Ex relevance

Name Type Version

Indumax CLS54 - O xxx x x x + x

For use in hazardous areas, CSA IS NI
Cl.I Div.1&2,Gr. A-D

Process connections, additional options,
cable connection, temperature sensor,
identification
No Ex relevance

Name Type Version

Indumax CLS54 - K xxx x x x + x

For use in hazardous areas, EAC Ex, 0Ex
ia IIC T6/T4 Ga X

Process connections, additional options,
cable connection, temperature sensor,
identification
No Ex relevance

3.3.2 Nameplate

The nameplate can be found on the sensor.
The following information is provided on the nameplate:

• Manufacturer identification

• Order code

• Extended order code

• Serial number

• Cell constant (nominal value)

• Protection class

• Pressure specification at 20 °C

• Continuous service temperature
Compare the data on the nameplate with your order.

3.3.3 Product identification

Product page

www.endress.com/cls54

Incoming acceptance and product identification Indumax CLS54

10 Endress+Hauser

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 the product page for your product on the Internet.

2. At the bottom of the page, click the link Online Tools and then select Access device
specific information.

 An additional window opens.

3. Enter the order code from the nameplate into the search field and then select Show
details.

 You will receive information on each feature (selected option) of the order code.

Manufacturer's address

Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen

3.4 Certificates and approvals

3.4.1 Hygiene

FDA

All materials in contact with the product are listed by the FDA.

EHEDG

Certified cleanability according to EHEDG TYPE EL-class I.

When using the sensor in hygienic applications, please note that the cleanability of the
sensor also depends on the way the sensor is installed. To install the sensor in a pipe, use
the appropriate and EHEDG-certified flow vessels for the particular process connection.

3-A

Certified according to 3-A Standard 74- ("3-A Sanitary Standards for Sensor and Sensor
Fittings and Connections Used on Milk and Milk Products Equipment").

Biological reactivity (USP class VI) (option)

Biological reactivity test certificate (Certificate of Compliance) according to USP (United States
Pharmacopoeia) part<87> and part <88> class VI with lot number traceability of materials in
contact with the medium.

Indumax CLS54 Installation

Endress+Hauser 11

3.4.2 Ex approvals

• ATEX II 1G Ex ia IIC T3/T4/T6

• CSA IS/NI Cl. I Div. 1 & 2 GP A - D in conjunction with the Liquiline M CM42 transmitter

• EAC Ex, 0Ex ia IIC T6/T4 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 has been
affixed to the product.

3.4.3 Regulation (EC) No. 1935/2004

Meets the requirements of Regulation (EC) No. 1935/2004

3.4.4 Pressure approval

Canadian pressure approval for pipes according to ASME B31.3

3.4.5  mark

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.

4 Installation

4.1 Installation conditions

4.1.1 Orientation

The sensor must be completely immersed in the medium. Avoid air bubbles in the area of the
sensor.

Installation Indumax CLS54

12 Endress+Hauser

> 1 m (3.3 ft)

A0017691

 1 Installation positions of the conductivity sensor

If the flow direction changes (after pipe bends), turbulence in the medium can result.
Install the sensor at a distance of at least 1 m (3.3 ft) downstream from a pipe bend.

The product should flow along the hole of the sensor (see the arrows on the housing). The
symmetrical measuring channel allows flow in both directions.

For a 3-A compliant installation, the following must be noted:
After the instrument is installed its hygienic integrity shall be maintained. All process

connections must be 3-A compliant.

Indumax CLS54 Installation

Endress+Hauser 13

4.1.2 Installation factor

The ionic current in the liquid is affected by the walls in
confined installation conditions. This effect is compensated
by what is referred to as the installation factor. The
installation factor can be entered in the transmitter for the
measurement or the cell constant is corrected by multiplying
by the installation factor.
The value of the installation factor depends on the diameter
and the conductivity of the pipe nozzle as well as the
distance a between the sensor and the wall.
The installation factor f (f = 1.00) can be disregarded if the
distance to the wall is sufficient (a > 15 mm, from DN 65).
If the distance to the wall is smaller, the installation factor
increases for electrically insulating pipes (f > 1), and
decreases for electrically conductive pipes (f < 1).
It can be measured using calibration solutions, or a close
approximation can be determined from the diagram below.

a

A0032680

 2 Installation CLS54

a Wall distance

1

2

a[inch]

0

5

10 15

20

2525

a[mm]

0.80

1.00

1.20

1.40

f

0.20

0.39

0.59

0.79

0.98

A0005441

 3 Relationship between installation factor f and wall distance a

1 Electrically conductive pipe wall
2 Electrically insulating pipe wall

4.1.3 Air set

To compensate residual coupling in the cable and between the two sensor coils, zero
adjustment in air ("air set") must be performed before installing the sensor. Follow the
instructions provided in the Operating Instructions of the transmitter used.

Installation Indumax CLS54

14 Endress+Hauser

4.2 Installing the sensor

A0028428

 4 Installation of CLS54, arrow indicates direction of flow

When installing, align the sensor in such a way that the medium flows through the flow
opening of the sensor in the direction of medium flow. The sensor head must be completely
immersed in the medium.

The symmetrical measuring channel allows flow in both directions.

Indumax CLS54 Installation

Endress+Hauser 15

4.3 Dimensions

54.5(2.15)

Ø 64(2.52)

10.2(0.40)

33(1.30)

Ø 9

(0.35)

11.5(0.45)

28.5(1.12)

Ø 6(0.24)

126(4.96)

78.5(3.09)

58(2.28)

A0005429

 5 Dimensions in mm(inch) (long version)

Installation Indumax CLS54

16 Endress+Hauser

4.3.1 Process connections

Ø 6(0.24)

36.5(1.44)

16(0.63)

0

126(4.96)

126(4.96)

0
16(0.63)

36.5(1.44)

Ø 6(0.24)

A

B

17(0.67)

Ø 89.5
(3.52)

12.5(0.49)

Ø 84
(3.31)

A0004949

 6 Process connections for CLS54 (short version), dimensions in mm (inch)

A NEUMO BioControl D50 for pipe connection: DN 40 (DIN 11866 series A, DIN 11850); DN 42.4 (DIN

11866 series B, DIN EN ISO 1127); 2" (DIN 11866 series C, ASME-BPE)

B Varivent N DN 40 to 125

Indumax CLS54 Installation

Endress+Hauser 17

62.6(2.46)

78.5(3.09)

58(2.28)

0

11(0.43)

126(4.96)

Ø 64.7(2.55)

Ø 57.7(2.27)

78.5(3.09)

58(2.28)

0

4(0.16)

126(4.96)

78.5(3.09)

58(2.28)

0

2.85(0.11)

54.5(2.15)
64(2.52)

126(4.96)

78.5(3.09)

58(2.28)

66.85(2.63)

0

126(4.96)

A

B

C

D

A0005436

 7 Process connections for CLS54 (long version), dimensions in mm (inch)

A Sanitary connection DIN 11851, DN 50
B SMS coupling 2"
C Clamp ISO 2852 , 2"
D Aseptic coupling DIN 11864-1 form A, for pipe according to DIN 11850, DN 50

4.4 Post-installation check

Put the sensor into operation only if you can answer "yes" to the following questions:

• Are the sensor and cable undamaged?

• Is the orientation correct?

• Has the sensor been installed in the process connection, and does not suspend freely from
the cable?

Electrical connection Indumax CLS54

18 Endress+Hauser

5 Electrical connection

L

WARNING

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.

5.1 Connection conditions

5.1.1 Connection diagram: Sensors for Zone 0 (ATEX/EAC Ex)

CLS50

CLS54

IIC 2G

IIC 1G

IIC 3G

Zone 1

Zone 0

Zone 2

Ex ia Ex ia

A0032676

Indumax CLS54 Electrical connection

Endress+Hauser 19

5.1.2 Sensors with CSA approval

The instructions in the Control Drawing apply for sensors with FM or CSA approval. You can
find the Control Drawing in the Operating Instructions of the transmitter used.

5.2 Connecting to the transmitter

The sensor is supplied with a fixed cable. The wiring diagram is provided in the Operating
Instructions of the transmitter used.

Connection via a VBM junction box is necessary for a cable connection. The extension to the
transmitter is via the CLK6 cable.

WH

RD

Pt 1000

YE

GN

Ferrule RD

WH

Ferrule BU

Screen
Inner connector

BN n.c.

Cable

}

Ferrule RD
Ferrule BU

Screen
Inner connector

Coax WH

}
}

Coax RD

A0005433-EN

 8 Fixed cable / measuring cable CLK6

Cable length:

maximum 55 m (180 ft) total length (non-Ex
versions)

maximum 50 m (180 ft) total length (Ex versions)

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) which are loose or insufficiently secured.

Maintenance Indumax CLS54

20 Endress+Hauser

5.4 Post-connection check

Device condition and specifications Notes

Are the outside of the sensor, assembly, cable undamaged? Visual inspection

Electrical connection Notes

Are the installed cables strain-relieved and not twisted?

Is a sufficient length of the cable cores stripped, and is it positioned
in the terminal correctly?

Check the fit (by pulling gently)

Are all the screws terminals properly tightened? Tighten

Are all cable entries mounted, tightened and leak-tight? For lateral cable entries, make sure the cables

loop downwards to allow water to drip off

Are all cable entries installed downwards or mounted laterally?

6 Maintenance

L

CAUTION

Corrosive chemicals

Danger of chemical burns to the eyes and skin. Danger of damage to clothing and equipment

‣

It is absolutely essential to protect the eyes and hands properly when working with acids,
bases and organic solvents!

‣

Wear protective goggles and safety gloves.

‣

Clean away splashes on clothes and other objects to prevent any damage.

‣

Pay particular attention to the information provided in the safety data sheets for the
chemicals used.

As there is no galvanic contact with the medium, inductive sensors are considerably less
sensitive to dirt and fouling than conventional conductive sensors.

However, dirt can clog the measuring channel which, in turn, can alter the cell constant. In
such cases, an inductive sensor also needs to be cleaned.

Clean away fouling on the sensor as follows depending on the type of fouling:

• Oily and greasy films:
Clean with grease remover, e.g. alcohol, acetone, possibly hot water and dishwashing
detergent.

• Lime and metal hydroxide buildup:
Dissolve buildup with diluted hydrochloric acid (3 %) and then rinse thoroughly with plenty
of clear water.

• Sulfidic buildup (from flue gas desulfurization or sewage treatment plants):
Use a mixture of hydrochloric acid (3 %) and thiocarbamide (commercially available) and
then rinse thoroughly with plenty of clear water.

• 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.

Indumax CLS54 Repairs

Endress+Hauser 21

7 Repairs

7.1 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 swift, safe and professional device returns, please read the return procedures and
conditions at www.endress.com/support/return-material.

7.2 Disposal

The device contains electronic components and must therefore be disposed of in accordance
with regulations on the disposal of electronic waste.

Observe the local regulations.

8 Accessories

8.1 Cable extension

8.1.1 Measuring cable
Measuring cable CLK6

• Extension cable for inductive conductivity sensors, for extension via VBM junction box

• Sold by the meter, order number: 71183688

8.1.2 Junction box
VBM

• Junction box for cable extension

• 10 terminal strips

• Cable entries: 2 x Pg 13.5 or 2 x NPT ½"

• Material: aluminum

• Degree of protection: IP 65

• Order numbers
– Cable entries Pg 13.5 : 50003987
– Cable entries NPT ½": 51500177

Desiccant pouch

• Desiccant pouch with color indicator for VBM junction box

• Order No. 50000671

Technical data Indumax CLS54

22 Endress+Hauser

8.2 Calibration solutions

Conductivity calibration solutions CLY11

Precision solutions referenced to SRM (Standard Reference Material) by NIST for qualified
calibration of conductivity measuring systems in accordance with ISO 9000

• CLY11-B, 149.6 μS/cm (reference temperature 25 °C (77 °F)), 500 ml (16.9 fl.oz)
Order No. 50081903

• CLY11-C, 1.406 mS/cm (reference temperature 25 °C (77 °F)), 500 ml (16.9 fl.oz)
Order No. 50081904

• CLY11-D, 12.64 mS/cm (reference temperature 25 °C (77 °F)), 500 ml (16.9 fl.oz)
Order No. 50081905

• CLY11-E, 107.00 mS/cm (reference temperature 25 °C (77 °F)), 500 ml (16.9 fl.oz)
Order No. 50081906

Technical Information TI00162C

9 Technical data

9.1 Input

9.1.1 Measured values

• Conductivity

• Temperature

9.1.2 Measuring range

Conductivity

Recommended range: 100 μS/cm to 2000 mS/cm
(uncompensated)

Temperature –10 to +150 °C (+14 to +302 °F)

9.1.3 Cell constant

k = 6.3 cm

–1

9.1.4 Temperature measurement

Pt1000 (according to DIN EN 60751)

9.2 Performance characteristics

9.2.1 Temperature response time

t90 ≤ 26 s

9.2.2 Maximum measured error

± (0.5 % of reading + 10 μS/cm) after calibration

Indumax CLS54 Technical data

Endress+Hauser 23

(plus uncertainty of the conductivity of the calibration solution)

9.3 Environment

9.3.1 Ambient temperature range

-20 to +60 °C (-4 to 140 °F)

9.3.2 Storage temperature

-25 to +80 °C (-13 to +176 °F)

9.3.3 Relative humidity

5 to 95 %

9.3.4 Degree of protection

IP 68 / NEMA type 6 (1 m (3.3 ft) water column, 50 °C (122 °F), 168 h)

9.4 Process

9.4.1 Process temperature

-10 to +125 °C (+14 to +257 °F)

9.4.2 Sterilization

150 °C (302 °F) / 6 bar (87 psi) absolute, (max. 60 min.)

9.4.3 Process pressure (absolute)

13 bar (188.5 psi) up to 90 °C (194 °F)
9 bar (130.5 psi) at 125 °C (257 °F)
1 to 6 bar (14.5 to 87 psi) in CRN environment tested with 50 bar (725 psi)
Underpressure down to 0.1 bar (1.45 psi)

Technical data Indumax CLS54

24 Endress+Hauser

9.4.4 Temperature/pressure ratings

A

50 70

1 01 1 05

10 30

125

90

0

–10

[° C]

9

13

[bar]

32

50

86

122

158

230

302194

257

[°F]

130.5

188.5

[psi]

6

B

1

87

14.5

p (abs.)

A0008379

 9 Pressure/temperature ratings

A Temporarily for sterilization (max. 60 min.)
B MAWP (maximum allowable working pressure) according to ASME-BPVC Sec. VIII, Div 1 UG101 for

CRN registration

9.5 Mechanical construction

9.5.1 Dimensions

→ Section "Installation"

9.5.2 Weight

0.3 to 0.5 kg (0.66 to 1.1 lb.) depending on version plus cable

9.5.3 Materials

In contact with medium

Virgin PEEK

Not in contact with medium PPS-GF40

Stainless steel 1.4404 (AISI 316L)
Screws: 1.4301 (AISI 304)
Cable gland: PVDF
Seals: FKM, EPDM
Cable: TPE

Indumax CLS54 Technical data

Endress+Hauser 25

9.5.4 Surface roughness

Ra ≤ 0.8 μm (smooth, injection-molded PEEK surface) at surfaces in contact with medium

9.5.5 Chemical resistance

Medium Concentration PEEK

Caustic soda NaOH 0 to 15 % 20 to 90 °C (68 to 194 °F)

Nitric acid HNO

3

0 to 10 % 20 to 90 °C (68 to 194 °F)

Phosphoric acid H3PO

4

0 to 15 % 20 to 80 °C (68 to 176 °F)

Sulfuric acid H2SO

4

0 to 30 % 20 °C (68 °F)

Peracetic acid H3C-CO-OOH 0.2 % 20 °C (68 °F)

Index Indumax CLS54

26 Endress+Hauser

Index

Symbols

 mark ....................... 11

0 … 9

3-A ..........................10

A

Accessories ..................... 21

Air set ........................ 13

Ambient temperature range ........... 23

Approvals ...................... 10

B

Biological reactivity ................ 10

C

Calibration solutions ................22

Cell constant .................... 22

Certificates ..................... 10

Chemical resistance ................ 25

Connection conditions ...............18

D

Declaration of Conformity ............. 2

Degree of protection ................23

Designated use ....................6

Dimensions ..................... 15

Disposal ....................... 21

E

EC Declaration of Conformity ........... 2

EHEDG ........................10

Electrical connection ................18

Ensuring the degree of protection ........ 19

Environment .................... 23

Ex approvals .................... 11

F

FDA ......................... 10

H

Hazardous areas ................... 7

I

Incoming acceptance ................ 8

Input .........................22

Installation ................... 11, 14

Installation conditions ...............11

Installation factor ................. 13

Interpreting the order code ............ 10

J

Junction box .................. 19, 21

M

Maintenance .................... 20

Manufacturer's address .............. 10

Materials ...................... 24

Maximum measured error ............ 22

Measured values .................. 22

Measuring cable .................. 21

Measuring range ..................22

Mechanical construction ............. 24

N

Nameplate ...................... 9

O

Occupational safety ................. 6

Operational safety ..................7

Orientation ..................... 11

P

Performance characteristics ........... 22

Post-connection check ...............20

Post-installation check .............. 17

Pressure approval ................. 11

Process ........................23

Process connections ................ 16

Process pressure .................. 23

Process temperature ................23

Product identification .............. 8, 9

Product page ..................... 9

Product safety .................... 7

R

Relative humidity ..................23

Repairs ........................21

Requirements for the personnel .......... 6

Return ........................ 21

Indumax CLS54 Index

Endress+Hauser 27

S

Safety

Electrical equipment in hazardous areas .. 7

Safety instructions ..................6

Scope of delivery ...................8

Sensor

Connection in hazardous area ....... 18

State of the art .................... 7

Sterilization .....................23

Storage temperature ................23

Surface roughness ................. 25

Symbols ........................ 4

T

Technical data ................... 22

Temperature response time ............22

Temperature sensor ................ 22

Temperature/pressure ratings .......... 24

Type code ....................... 9

U

Use ...........................6

W

Warnings ....................... 4

Weight ........................24

Wiring ........................19

www.addresses.endress.com

*71377428*

71377428