Endress+Hauser OUSAF46 User manual

Products Solutions Services

Operating Instructions

OUSAF46

Optical sensor with the OUA260 flow assembly for

the measurement of UV absorption

BA01349C/07/EN/03.18

71430357

2018-10-31

Table of contents OUSAF46

2 Endress+Hauser

Table of contents

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

1.1 Warnings ........................... 3

1.2 Symbols ............................ 3

1.3 Symbols on the product ............... 4

2 Basic safety instructions ....... 4

2.1 Requirements for the personnel ........ 4

2.2 Designated use ...................... 4

2.3 Occupational safety .................. 4

2.4 Operational safety ................... 5

2.5 Product safety ....................... 5

3 Product description ............. 6

3.1 Measuring principle .................. 6

4 Incoming acceptance and

product identification .......... 7

4.1 Incoming acceptance ................. 7

4.2 Product identification ................. 7

4.3 Manufacturer's address ............... 8

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

4.5 Certificates and approvals ............. 8

5 Installation ...................... 9

5.1 Installation conditions ................ 9

5.2 Mounting the sensor ................ 11

5.3 Post-installation check ............... 12

6 Electrical connection .......... 12

6.1 Connecting the sensor ............... 13

6.2 Lamp voltage ....................... 14

6.3 Ensuring the degree of protection ..... 14

6.4 Post-connection check ............... 15

7 Commissioning ................ 16

7.1 Function check ..................... 16

7.2 Calibrating/adjusting the sensor ...... 16

8 Maintenance .................. 18

8.1 Maintenance schedule ............... 19

8.2 Replacing the hazardous area lamp .... 19

8.3 Replacing the mercury lamp .......... 19

8.4 Replacing the reference filter ......... 22

8.5 Replacing the measurement filter ..... 24

8.6 Replacing the sensor window and

seal ............................... 28

9 Repair .......................... 30

9.1 Return ............................ 30

9.2 Disposal ........................... 30

10 Accessories .................... 30

10.1 Flow assembly ...................... 31

10.2 Cable ............................. 31

10.3 Calibration ......................... 31

11 Technical data ................. 31

11.1 Input .............................. 31

11.2 Environment ....................... 32

11.3 Process ............................ 32

11.4 Mechanical construction ............. 32

Index ................................. 34

OUSAF46 About this document

Endress+Hauser 3

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 OUSAF46

4 Endress+Hauser

1.3 Symbols on the product

Symbol Meaning

Reference to device documentation

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

The sensor measures the spectral absorption of process liquids in the ultraviolet region of the

electromagnetic spectrum. The sensor is suitable for use in a wide range of applicationsin a

variety of industrial sectors , such as:

• Measurement of protein concentrations

• Chromatography monitoring

• Filtration monitoring

• Concentration measurement of organic compounds

• Detection of aromates

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

OUSAF46 Basic safety instructions

Endress+Hauser 5

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

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

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 Versions with hazardous area lamp

Also observe the safety instructions in the XA for these Operating Instructions.

Safety instructions for electrical apparatus in hazardous areas, photometer sensors,

XA01403C/07/A3

Product description OUSAF46

6 Endress+Hauser

3 Product description

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

transmitter.

1OPL

68 7 2

A0029412

 1 Absorption measurement with reference

1 Light source

2 Optical windows

3 Measurement filter

4 Measuring detector

5 Lens

6 Medium flow

7 Reference filter

8 Reference detector

OUSAF46 has 2 pairs of reference and measuring detectors (= 2 channels). Only one

channel is shown for the sake of simplicity.

OUSAF46 Incoming acceptance and product identification

Endress+Hauser 7

4 Incoming acceptance and product identification

4.1 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.

4.2 Product identification

4.2.1 Nameplate

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

• Manufacturer identification

• Order code

• Serial number

• Safety information and warnings

‣Compare the information on the nameplate with the order.

4.2.2 Product identification

Product page

www.endress.com/ousaf46

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.

Incoming acceptance and product identification OUSAF46

8 Endress+Hauser

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.

4.3 Manufacturer's address

Endress+Hauser Conducta Inc.

4123 East La Palma Avenue, Suite 200

Anaheim, CA 92807 USA

4.4 Scope of delivery

The scope of delivery consists of the following :

• Detector and lamp module without flow assembly or

• Detector and lamp module mounted on flow assembly

• 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 queries:

Please contact your supplier or local sales center.

4.5 Certificates and approvals

4.5.1  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.

4.5.2 Hazardous area approvals

• ATEX II 2G Ex db IIC T5 Gb

• FM Cl.1, Div. 1, Groups B, C, D

4.5.3 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.

OUSAF46 Installation

Endress+Hauser 9

5 Installation

5.1 Installation conditions

5.1.1 Measuring system

An optical measuring system comprises:

• Sensor (photometer) OUSAF46

• Transmitter, e. g. Liquiline CM44P

• Cable set, e. g. CUK80

• Assembly OUA260

1 2

 2 Example of a measuring system with a photometer sensor

1 pipe 5 Flow assembly OUA260

2 Transmitter CM44P 6 Sensor: light source (lamp)

3 CUK80 cable set 7 CUK80 cable set

4 Sensor: detector

Installation OUSAF46

10 Endress+Hauser

5.1.2 Dimensions

A B

A0035258

 3 Sensor module

A Dimension of lamp → Table

B Dimension of detector → Table

C Assembly, see Technical Information for assembly

Lamp type Dimension A in mm (inch)

Standard lamp 146.1 (5.75)

Detector type Dimension B in mm (inch)

Standard version with test filter 80 (3.15)

Easycal 94 (3.70)

The total length of the sensor module is derived from the lengths of the lamp, the

detector and the assembly.

The dimensions of the OUA260 assembly are provided in Technical Information,

TI00418C.

‣Allow an additional gap of 5 cm (2") on both the lamp side and detector side of the sensor

to connect the sensor cable.

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