Endress+Hauser OUSAF44 User manual

BA416C/07/EN/13.10
71125870
Operating Instructions
OUSAF44
Optical sensor combined with flow assembly OUA260 for
measurement of UV absorption

Endress+Hauser
OUSAF44
Table of contents
1 Safety instructions . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning and operation . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . 4
1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Notes on safety icons and symbols . . . . . . . 5
2 Identification . . . . . . . . . . . . . . 7
2.1 Product structure . . . . . . . . . . . . . . . . . . . . 7
2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . 8
2.3 Certificates and approvals . . . . . . . . . . . . . . 8
3 Installation . . . . . . . . . . . . . . . . 9
3.1 Incoming acceptance, transport, storage . . . 9
3.2 Installation conditions . . . . . . . . . . . . . . . 10
3.3 Installation instructions . . . . . . . . . . . . . . 13
3.4 Post-installation check . . . . . . . . . . . . . . . 14
4 Wiring . . . . . . . . . . . . . . . . . . 15
4.1 Electrical connection . . . . . . . . . . . . . . . . 15
4.2 Post-connection check . . . . . . . . . . . . . . . 16
5 Function . . . . . . . . . . . . . . . . . 16
5.1 Design of OUSAF44 with OUA260 flow
assembly . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Measuring principle . . . . . . . . . . . . . . . . . 17
5.3 Function check . . . . . . . . . . . . . . . . . . . . 17
5.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . 18
5.5 Optical check . . . . . . . . . . . . . . . . . . . . . . 20
6 Maintenance. . . . . . . . . . . . . . 22
6.1 Mercury lamp replacement for
OUSAF44 . . . . . . . . . . . . . . . . . . . . . . . . 23
6.2 OUSAF44 reference detector/filter
replacement . . . . . . . . . . . . . . . . . . . . . . . 25
6.3 Measurement filter replacement (Easycal™
assembly) . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.4 Measurement filter replacement (standard
assembly) . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.5 Sensor window and gasket replacement . . 29
6.6 Sensors without precision optical pathlength
adjuster option . . . . . . . . . . . . . . . . . . . . . 30
6.7 Sensors with precision optical pathlength
adjuster option . . . . . . . . . . . . . . . . . . . . . 30
7 Accessories . . . . . . . . . . . . . . . 34
7.1 Flow assembly . . . . . . . . . . . . . . . . . . . . . 34
7.2 Transmitters . . . . . . . . . . . . . . . . . . . . . . . 34
7.3 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . 34
8 Trouble-shooting. . . . . . . . . . . 35
8.1 List of spare parts OUSAF44 Sensor . . . . . . 35
8.2 List of spare parts OUA260
Flow assembly . . . . . . . . . . . . . . . . . . . . . 36
8.3 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9 Technical data . . . . . . . . . . . . . 40
9.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.2 Environment . . . . . . . . . . . . . . . . . . . . . . 40
9.3 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.4 Mechanical construction . . . . . . . . . . . . . . 41
Index. . . . . . . . . . . . . . . . . . . . 42

Safety instructions OUSAF44
4Endress+Hauser
1 Safety instructions
1.1 Designated use
The OUSAF44 sensor is used for measuring the spectral absorbance of process liquids in the
ultraviolet region of the electromagnetic spectrum. It is suitable for a variety of applications:
• Measurement of protein concentrations
• Chromatography control
• Product purification
• Concentration measurement of organic compounds
• Aromatics detection
• Filtration monitoring
Any other use than the one described here compromises the safety of persons and the entire
measuring system and is not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
1.2 Installation, commissioning and operation
Please note the following items:
• Installation, commissioning, operation and maintenance of the measuring system must only
be carried out by trained technical personnel.
Trained personnel must be authorized for the specified activities by the system operator.
• Electrical connection must only be carried out by a certified electrician.
• Technical personnel must have read and understood these Operating Instructions and must
adhere to them.
• Before commissioning the entire measuring point, check all the connections. Ensure that
electrical cables and hose connections are not damaged.
• Do not operate damaged products and secure them against unintentional commissioning.
Mark the damaged product as being defective.
• Measuring point faults may only be rectified by authorized and specially trained personnel.
• If faults can not be rectified, the products must be taken out of service and secured against
unintentional commissioning.
• Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the service organization.
1.3 Operational safety
The sensor has been designed and tested according to the state of the art and left the factory in
perfect functioning order.
Relevant regulations and European standards have been met.
As the user, you are responsible for complying with the following safety conditions:
• Installation instructions
• Local prevailing standards and regulations.

OUSAF44 Safety instructions
Endress+Hauser 5
1.4 Return
If the sensor has to be repaired, please return it cleaned to the sales center responsible.
Please use the original packaging, if possible.
Before returning the device, contact your regional sales or service representative to get the local
return procedure.
Please enclose the completed "Declaration of Hazardous Material and De-Contamination" (copy
the second last page of these Operating Instructions) with the packaging and the transportation
documents. No repair without completed declaration!
1.5 Notes on safety icons and symbols
1.5.1 Embedded safety symbols according to ANSI
The structure, signal words and safety colors of the signs comply with the specifications of
ANSI Z535.6 ("Product safety information in product manuals, instructions and other collateral
materials").
Safety message structure Meaning
DANGER
!
Cause (/consequences)
Consequences if safety
message is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation will result in a fatal or serious
injury.
WARNING
!
Cause (/consequences)
Consequences if safety
message is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation can result in a fatal or serious
injury.
CAUTION
!
Cause (/consequences)
Consequences if safety
message is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or medium
injury.
NOTICE
Cause/situation
Consequences if safety
message is not heeded
►Action/note
This symbol alerts you to situations that can result in damage
to property and equipment.

Safety instructions OUSAF44
6Endress+Hauser
1.5.2 Document symbols
È ä 1 This symbol stands for a cross-reference to a certain page (e.g. Page 1).
È å 2 This symbol stands for a cross-reference to a certain graphic (e.g. Fig. 2).
Additional information, tips
Permitted or recommended
Forbidden or not recommended

OUSAF44 Identification
Endress+Hauser 7
2 Identification
2.1 Product structure
Sensor OUSAF44
Cable set OUK40
Wavelength
A254nm
B280nm
C295nm
D302nm
E313nm
F365nm
Calibration / Validation
0Standard
1Easycal™
Lamp approval
AStandard
B FM Class 1 Div 1 groups B, C, D
C ATEX II 2G EEx d IIC T5
Assembly
0 Isolated order / spare part
1 Assembled to flow cell order position
OUSAF44- Complete order code
Sensor
1OUSAF44
2OUSAF46
Transmitter
A900series
B600series
C700series
DCVM40
Cable length
10 10 ft / 3 m
15 15 ft / 4.5 m
25 25 ft / 7.5 m
50 50 ft / 15 m
88 ..... ft
89 ..... m
Barrier
A No hazardous area
BFM,Busbar
C ATEX, Busbar
DFM,DINrail
EATEX,DINrail
OUK40- Complete order code

Identification OUSAF44
8Endress+Hauser
2.2 Scope of delivery
The scope of delivery depends on the ordered version.
Isolated order
• 1 detector and lamp arm without flow assembly
Assembled to flow assembly OUA260
• Detector and lamp arm
Operating Instructions depending on the used transmitter
If you have any questions, please contact your supplier or your local sales center.
2.3 Certificates and approvals
2.3.1 Ex approval
• ATEX II 2G EEx d IIC T5
• FM Cl.1, Div. 1, Group B, C, D
2.3.2 FDA conformity
All non metallic wetted parts as in rubber and plastics comply with FDA Regulations 21 CFR
177.2600. The plastic and elastomeric wetted parts of the sensor have passed the bio-reactivity
tests according to USP <87> and <88> class VI.

OUSAF44 Installation
Endress+Hauser 9
3 Installation
3.1 Incoming acceptance, transport, storage
• Make sure the packaging is undamaged!
Inform the supplier about any damage to the packaging.
Keep the damaged packaging until the matter has been settled.
• Make sure the contents are undamaged!
Inform the supplier about damage to the contents. Keep the damaged products until the
matter has been settled.
• Check that the order is complete and agrees with your shipping documents.
• The packaging material used to store or to transport the product must provide shock
protection and humidity protection. The original packaging offers the best protection. Also,
keep to the approved ambient conditions (see "Technical data").
• If you have any questions, please contact your supplier or your local sales center.

Installation OUSAF44
10 Endress+Hauser
3.2 Installation conditions
3.2.1 Angle of installation
Sensors are designed for in-line use with the related OUA260 flow assembly. The flow assembly
can be installed either directly in a process line or in a by-pass line. The OUSAF44 sensor cannot
be used without the OUA260.
• Make sure that the sensor and detector housings are horizontal. This will ensure that the
optical window surfaces are in a vertical position which will help to prevent buildup on the
window surfaces.
• Install the sensor upstream of pressure regulators.
• Allow adequate space for the connection of cables at the ends of the lamp and the detector
housing.
• Operating sensors under pressure will help to avoid air or gas bubble evolution.
a0007110
Fig. 1: Sensor installation
A
B
C
D
Preferred
Acceptable
Avoid
Best
E
1
2
Never
Process flow
Process piping
C
A
B
E
D
11
1
1
1
2
2
2
2
2