Endress+Hauser Memosens COS81E Caractéristiques techniques

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Brief Operating Instructions

Memosens COS81E

Hygienic, optical sensor with Memosens 2.0

technology for the measurement of oxygen

These instructions are Brief Operating Instructions; they are

not a substitute for the Operating Instructions pertaining to

the device.

Detailed information on the device can be found in the

Operating Instructions and in the other documentation

available at:

• www.endress.com/device-viewer

• Smart phone/tablet: Endress+Hauser Operations App

KA01484C/07/EN/02.21

71520968

2021-03-22

Memosens COS81E

2 Endress+Hauser

TAG No.: XXX000

Ser. No.: X000X000000

Order code 00X00-XXXX0XX0XXX

www.endress.com/deviceviewer Endress+Hauser Operations App

Serial number

A0023555

Memosens COS81E Table of contents

Endress+Hauser 3

Table of contents

1 About this document .............................................................. 3

1.1 Safety information ..................................................................... 3

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

1.3 Additional documentation ................................................................ 4

2 Basic safety instructions .......................................................... 5

2.1 Requirements for personnel .............................................................. 5

2.2 Designated use ........................................................................ 5

2.3 Occupational safety ..................................................................... 5

2.4 Operational safety ......................................................................6

2.5 Product safety ......................................................................... 6

3 Installation ....................................................................... 6

3.1 Installation conditions ................................................................... 6

3.2 Mounting the sensor .................................................................... 9

3.3 Post-installation check .................................................................. 9

4 Electrical connection ............................................................ 10

4.1 Connecting the sensor .................................................................. 10

4.2 Ensuring the degree of protection ......................................................... 10

4.3 Post-connection check ..................................................................11

5 Commissioning .................................................................. 11

5.1 Function check ....................................................................... 11

1 About this document

1.1 Safety information

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.

About this document Memosens COS81E

4 Endress+Hauser

Structure of information Meaning

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 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

1.2.1 Symbols on the device

Symbol Meaning

Reference to device documentation

1.3 Additional documentation

The following manuals which complement these Operating Instructions can be found on the

product pages on the Internet:

• Operating Instructions for the relevant sensor

• Technical Information for the relevant sensor

• Operating Instructions for the transmitter used

• Operating Instructions for the cable used

In addition to these Operating Instructions, an XA with "Safety instructions for electrical

apparatus in the hazardous area" is also included with sensors for use in the hazardous area.

‣Please follow instructions on use in the hazardous area carefully.

Memosens COS81E Basic safety instructions

Endress+Hauser 5

Safety instructions for electrical equipment in hazardous areas, Memosens 2.0 optical

oxygen:

• ATEX and IECEx: XA02238C

• INMETRO: XA02475C

• NEPSI: XA02476C

• JPN Ex: XA02485C

• CSA C/US: XA02520C

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

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 international standards for industrial applications.

• The electromagnetic compatibility indicated applies only to a product that has been

connected in accordance with these Operating Instructions.

Installation Memosens COS81E

6 Endress+Hauser

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.

3 Installation

3.1 Installation conditions

3.1.1 Dimensions

Pg 13,5

50 (1.97) 120 / 160 / 220 / 320 / 420 (4.7 / 6.3 / 8.7 / 12.6 / 16.5)*

12 - 0.1

(0.47)

A0043883

 1 Dimensions in mm (inch)

Memosens COS81E Installation

Endress+Hauser 7

3.1.2 Orientation

COS81E-****C*** (c-shaped)

The sensor with the c-shaped spot cap is self-draining in the recommended installation angles

and can therefore be used for hygienic applications.

135°

225°

45°

315°

0° 180°

A0042948

 2 Installation angle Memosens COS81E-****C*** (c-shaped spot cap)

The sensor can be installed at any installation angle (0 to 360 °).

Recommended installation angle

Installation Memosens COS81E

8 Endress+Hauser

COS81E-****U*** (u-shaped)

45°

135°

45°

0° 180°

A0042949

 3 Installation angle Memosens COS81E-****U*** (u-shaped spot cap)

Recommended installation angle

Possible installation angle

Inadmissible installation angle

The sensor with the u-shaped spot cap must be installed at an inclination angle of 0 to 180˚

in an assembly, holder or a corresponding process connection. Recommended angle: 0 to 45°

or 135 to 180 ° to prevent the attachment of air bubbles. At angles of inclination of 45 to

135°, air bubbles at the oxygen-sensitive membrane may result in higher readings than

expected.

Inclination angles other than those mentioned are not permitted. In order to avoid buildup

and condensation on the spot, do not install the COS81E-****U *** sensor upside down.

Follow the instructions for installing sensors in the Operating Instructions for the

assembly used.

3.1.3 Mounting location

1. Choose a mounting location that is easy to access.

2. Ensure that upright posts and assemblies are fully secured and vibration-free.

3. Choose a mounting location with an oxygen concentration that is typical for the

application.

Memosens COS81E Installation

Endress+Hauser 9

3.2 Mounting the sensor

3.2.1 Measuring system

A complete measuring system comprises:

• a Memosens COS81E oxygen sensor

• Measuring cable CYK10

• A transmitter, e.g. Liquiline CM42, Liquiline CM44x/R, Liquiline CM44P, Liquiline Compact

CM72/82, Liquiline Mobile CML18

• Optional: an assembly, e.g. Unifit CPA842 fixed installation assembly , Flowfit CYA21 flow

assembly or Cleanfit CPA875 retractable assembly

• Optional: connection to an analog fermenter controller via the Memosens analog converter

CYM17

3.2.2 Installing at a measuring point

Must be installed in a suitable assembly (depending on the application).

LWARNING

Electrical voltage

In the event of a fault, non-grounded metallic assemblies may be live and as such are not safe

to touch!

‣When using metallic assemblies and installation equipment, national grounding provisions

must be observed.

For complete installation of a measuring point, proceed as follows:

1. Install the retractable assembly or a flow assembly (if used) into the process.

2. Connect the water supply to the rinse connections (if you are using an assembly with a

cleaning function).

3. Install and connect the oxygen sensor.

NOTICE

Installation error

Cable breakage, loss of sensor due to cable separation, unscrewing of spot cap!

‣Do not install the sensor freely suspended from the cable!

‣Screw the sensor into the assembly, ensuring that the cable is not twisted.

‣Hold the sensor body steady during installation or removal. Turn only at the hexagonal

nut of the armored coupling. Otherwise the spot cap might be unscrewed and will then

remain in the assembly or process.

‣Avoid exerting excessive tensile force on the cable (e.g. through jerky pulling movements).

‣Choose a mounting location that is easy to access for later calibrations.

‣Follow the instructions for installing sensors in the Operating Instructions for the assembly

used.

3.3 Post-installation check

1. Are the sensor and cable undamaged?

2. Is the orientation correct?

Electrical connection Memosens COS81E

10 Endress+Hauser

3. Is the sensor installed in an assembly and is not suspended from the cable?

4. Avoid the penetration of moisture by fitting the protection cap on the immersion

assembly.

4 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.

4.1 Connecting the sensor

The electrical connection of the sensor to the transmitter is established using measuring cable

CYK10.

GN/YE

GND

–

Com A

Com B

A0024019

 4 Measuring cable CYK10

4.2 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.

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