Endress+Hauser OUSAF11 User manual

Products Solutions Services

Operating Instructions

OUSAF11

Optical sensor for the measurement of VIS/NIR

absorption

BA00474C/07/EN/16.16

71330142

Table of contents

Endress+Hauser 3

Table of contents

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

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

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

1.3 Symbols on the product ............... 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 ................... 6

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

3 Product description ............. 7

3.1 Sensor design ....................... 7

3.2 Measuring principle .................. 8

4 Incoming acceptance and

product identification .......... 9

4.1 Incoming acceptance ................. 9

4.2 Product identification ................. 9

4.3 Scope of delivery .................... 10

4.4 Certificates and approvals ............ 10

5 Installation .................... 11

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

5.2 Mounting the sensor ................ 14

5.3 Post-installation check ............... 15

6 Electrical connection .......... 15

6.1 Connecting the sensor ............... 15

6.2 Lamp voltage ....................... 16

6.3 Ensuring the degree of protection ..... 16

6.4 Post-connection check ............... 16

7 Commissioning ................ 17

7.1 Function check ..................... 17

7.2 Calibrating/adjusting the sensor ...... 17

8 Maintenance .................. 17

8.1 Maintenance schedule ............... 17

8.2 Clean sensor ....................... 18

8.3 Replace lamp ....................... 18

8.4 Replacing the O-ring ................ 20

9 Repairs ......................... 23

9.1 Spare parts ........................ 23

9.2 Return ............................ 23

9.3 Disposal ........................... 23

10 Accessories .................... 23

10.1 Assembly .......................... 24

11 Technical data ................. 24

Index ................................. 27

Document information OUSAF11

4 Endress+Hauser

1 Document information

1.1 Warnings

Structure of information Meaning

LDANGER

Causes (/consequences)

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)

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)

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

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

OUSAF11 Document information

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1.3 Symbols on the product

Symbol Meaning

Reference to device documentation

Basic safety instructions OUSAF11

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.

• Measuring point faults may be repaired only by authorized and specially trained personnel.

Repairs not described in the Operating Instructions provided may only be carried out

directly by the manufacturer or by the service organization.

2.2 Designated use

The OUSAF11 sensor measures the VIS/NIR absorption of liquids. The sensor is suitable for

use in a wide range of applications , such as:

• Interphase detection

• Applications in the food and beverage industry

– Milk detection in CIP solutions

– Phase separation, e.g. milk/water

– Product loss detection in outlet

• Measurement of solids in:

– Primaries industry

– Mining

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

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.

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.

OUSAF11 Product description

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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

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.

3 Product description

3.1 Sensor design

123

A0021712

 1 Design of OUSAF11

1 Process connection (e.g. external thread)

2 Sensor shaft

3 Sensor head

Product description OUSAF11

8 Endress+Hauser

3.2 Measuring principle

Light absorption

The measuring principle is based on the Lambert-Beer law.

There is a linear dependency between the absorption of light and the concentration of the

absorbing substance:

A = -log(T) = ε . c . OPL

T = I/I0

T ... Transmission

I ... Intensity of received light at detector

I0 ... Intensity of transmitted light of light source

A ... Absorption

ε ... Extinction coefficient

c ... Concentration

OPL ... Optical path length

A light source emits radiation through the medium and the incident radiation is measured on

the detector side.

The intensity of the light is determined by a photodiode and converted to a photocurrent.

The subsequent conversion to absorbance units (AU, OD) is performed in the associated

transmitter.

1OPL 23

A0029401

 2 Absorption measurement

1 Light source

2 Optical windows of the sensor

3 Detector

4 Measurement filter (depends on sensor, not provided on all sensors)

5 Medium flow

OUSAF11 Incoming acceptance and product identification

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4 Incoming acceptance and product identification

4.1 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.

4.2 Product identification

4.2.1 Nameplate

The nameplate provides you with the following information on your device:

• Manufacturer identification

• Order code

• Extended order code

• Serial number

• Safety information and warnings

‣Compare the data on the nameplate with your order.

4.2.2 Product identification

Product page

www.endress.com/ousaf11

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.

Incoming acceptance and product identification OUSAF11

10 Endress+Hauser

2. At the bottom of the page, select the "Online Tools" link followed by "Check your device

features".

 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.

4.3 Scope of delivery

The scope of delivery consists of the following :

• OUSAF11 sensor

• Operating Instructions

Ordering the sensor together with a transmitter:

If you select the calibration option in the Product Configurator for the transmitter, the

complete measuring system (transmitter, sensor, cable) is factory-calibrated and shipped

as one package.

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

4.4 Certificates and approvals

4.4.1  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.

4.4.2 FDA conformity

All non-metal parts in contact with medium, such as rubber and plastic parts, meet the

requirements of FDA 21 CFR 177.2600. The plastic and elastomer parts of the sensor in

contact with medium have passed the biological reactivity tests according to USP <87> and

<88> Class VI.

4.4.3 3-A

Certified according to the 3-A standard 46-xx for versions with Tri-Clamp and Varivent

process connections

3-A hygiene standard for sensors whose spare parts and process connections are designed for

use in milk and dairy product plants

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