Endress+Hauser OUSAF12 Manuel utilisateur
Products Solutions Services
Operating Instructions
OUSAF12
Optical sensor combined with the OUA260 flow
assembly for absorbance measurement
BA00497C/07/EN/03.21
71538084
2021-07-31
Document information OUSAF12
2 Endress+Hauser
1 Document information
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
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
1.3 Symbols on the product
Reference to device documentation
Do not dispose of products bearing this marking as unsorted municipal waste. Instead, return them to the
manufacturer for disposal under the applicable conditions.
OUSAF12 Basic safety instructions
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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 Intended use
The sensor is used to determine the VIS/NIR absorption of a liquid medium. The sensor is
suitable for use in a wide range of applicationsin a variety of industrial sectors , such as:
• Suspended solids measurement
• Pharmaceuticals and biotechnology
• Chemical industry
• Paper and pulp industry
• Interphase detection
• Food and beverage industry
• Chemical industry
• Oil and gas industry
• Centrifuge and separator control
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.
Basic safety instructions OUSAF12
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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 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
OUSAF12 Product description
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3 Product description
3.1 Sensor design
1 12 34
A0014796
1 Sensor with flow assembly OUA260
1 Cable connector
2 Lamp module
3 Flow assembly OUA260 (depending on version)
4 Detector module
The detector and lamp can vary on account of the individual options ordered.
Product description OUSAF12
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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.
2
1OPL 23
4
5
A0029401
2 Absorption measurement
1 Light source
2 Optical windows (assembly)
3 Detector
4 Measurement filter (depends on sensor, not provided on all sensors)
5 Medium flow
OUSAF12 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 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/ousaf12
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. Open www.endress.com.
2. Call up the site search (magnifying glass).
3. Enter a valid serial number.
Installation OUSAF12
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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 comprises the following, depending on the version ordered:
• Detector and lamp module without flow assembly or
• Detector and lamp module mounted on flow assembly OUA260
• Operating Instructions
‣If you have any queries:
Please contact your supplier or local sales center.
5 Installation
5.1 Installation conditions
5.1.1 Measuring system
An optical measuring system comprises:
• Sensor (photometer) OUSAF12
• Transmitter, e. g. Liquiline CM44P
• Cable set, e. g. CUK80
• Assembly OUA260
OUSAF12 Installation
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1 2
3
7
54
6
3 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 OUSAF12
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5.1.2 Dimensions
A B
C
A0028304
4 Sensor module
A Dimension of lamp, depends on lamp type → Table
B Dimension of detector → Table
C Assembly, see Technical Information for assembly
Lamp type Dimension A in mm (inch)
High-luminescence lamp or standardincandescent lamp 33.78 (1.33)
Gas-filled lamp 33.78 (1.33)
Collimated incandescent lamp 151.3 (5.96)
Detector type Dimension B in mm (inch)
Standard version with test filter 101.6 (4.0)
Easycal 101.6 (4.0)
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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