Optek AS56 Series User manual

Phone: [phone]
E-Mail: [email protected]
Internet: www.optek.com
optek-Danulat GmbH
Emscherbruchallee 2
D - 45356 Essen
Instruction Manual
optek-sensors AS56
optek-Manual--1004-2011-02--AS56-US-2017-06-28
PN: 1004-2011-02 (-52)

Preface
Preface
This instruction manual is written to assist the user in proper procedures for
trouble-free operation.
It is explicitly pointed out that optek-Danulat GmbH assumes no responsibility
for loss or damage caused due to improper use of this instruction manual or
products described herein.
This manual is protected by copyright. However, the user may produce copies
and translations if required for correct operation of the products.
On request, this manual is available in other languages as well as on a digital
medium (Acrobat® Reader 7.0).
Our products are being continuously improved. Technical data is subject to
change without notice.
Essen, December 2015
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Table of contents
Table of contents
1 Using the instruction manual ............................................................................................... 1
1.1 Validity of the instruction manual............................................................................................. 1
1.2 Pictograms and signal words................................................................................................... 2
2 Returns and disposal ............................................................................................................ 3
2.1 Declaration of decontamination ............................................................................................... 3
2.2 Disposal................................................................................................................................... 3
3 Intended use........................................................................................................................... 4
4 Description of AS56-F / AS56-N sensors ............................................................................ 5
5 Technical data and exploded views..................................................................................... 7
5.1 Dimensions AS56-F / AS56-N sensor ..................................................................................... 9
5.2 Accessories weld-in port AS25................................................................................................ 10
5.3 Accessories Varivent adapter port AS25-G60......................................................................... 12
5.4 Accessories Clamp adapter port AS25-G60............................................................................ 13
5.5 Accessories optek T-pieces for pipe DIN 11850 ..................................................................... 14
5.6 Accessories optek T-pieces for pipe OD ................................................................................. 15
5.7 Accessories sealing flange AS25 ............................................................................................ 16
5.8 Exploded view of AS56-F / AS56-N sensor............................................................................. 17
6 Installation.............................................................................................................................. 18
6.1 General installation instructions............................................................................................... 18
6.2 Installation of the sensor.......................................................................................................... 20
6.3 Airpurge ................................................................................................................................... 22
7 Wiring...................................................................................................................................... 23
8 Faults ...................................................................................................................................... 24
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Table of contents
9 Maintenance........................................................................................................................... 27
9.1 Preventive maintenance .......................................................................................................... 27
9.2 Exchange of lamp module ....................................................................................................... 28
9.3 Return to operation after the exchange of lamp module ......................................................... 31
9.4 Spare parts and accessories ................................................................................................... 32
9.4.1 Lamp modules .......................................................................................................... 32
9.4.2 Installation Kit............................................................................................................ 32
9.4.3 Gaskets (not wetted)................................................................................................. 32
9.4.4 Gaskets (wetted)....................................................................................................... 32
9.4.5 Screw sets ................................................................................................................ 32
9.4.6 Accessories – cable sets stainless steel connector .................................................. 33
9.4.7 Accessories – process adapter................................................................................. 34
9.4.8 Accessories – T-piece for AS16 / AS56 - DIN 11850 ............................................... 35
9.4.9 Accessories – T-piece for AS16 / AS56 - OD (BS 4825-1)....................................... 35
10 EU declaration of conformity................................................................................................ 36
11 Contacts ................................................................................................................................. 37
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Using the instruction manual
1 Using the instruction manual
1.1 Validity of the instruction manual
This instruction manual is valid for the following sensors:
AS56-F, AS56-N.
Abbreviations mean the following sensor options:
• F: color sensor (wavelength application specific)
• N: near infrared sensor with range of wavelengths 730 – 970 nm
Follow the instruction manual for every operation. If the product is not used as
described in this instruction manual, your safety and the product function may be
affected.
To keep up reliability of the product, enhance its life cycle, and avoid down times,
follow the instructions given in this manual.
Furthermore, please follow the existing accident prevention and environmental
protection instructions, as well as recognized technical instructions for safe and
professional working.
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Using the instruction manual
1.2 Pictograms and signal words
Important information in this instruction manual is marked with the following
pictograms:
Danger!
This pictogram indicates immediate danger to life and health of persons.
The text next to the symbol gives information on how to avoid bodily injuries.
If the possible cause of risk can be specified, the corresponding pictogram
precedes instructions:
Danger!
Electrical voltage.
This pictogram indicates danger due to electrical voltage.
Attention!
This pictogram indicates information on how to avoid material damage.
Notice!
This pictogram indicates instructional or general advice.
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Returns and disposal
2 Returns and disposal
2.1 Declaration of decontamination
For the safety of our employees and because of legal regulations we require a
signed "declaration of decontamination" before your return can be handled.
This signed declaration must be included with the shipping documents on the
outside of the packaging.
Any returns which were exposed to hazardous substances and were not
professionally decontaminated are not accepted and will be sent back at your
cost.
optek's declaration of decontamination and contact information can be found on
our website www.optek.com.
2.2 Disposal
Special legal regulations apply to the return and disposal of industrial waste
equipment. However, manufacturer and user can contractually agree on which
party is to fulfill these legal obligations.
Observe current national disposal regulations. For disposing of packaging
material, please separate materials:
• paper/cardboard
• plastic
For disposal, disassemble the system components and separate them according
to different material groups.
Dispose of materials according to national and local regulations.
If no agreement has been made, products may be shipped to optek for disposal.
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Intended use
3 Intended use
The sensor and its variants are to be applied only as absorption sensors for
liquids and gases in inline applications according to the technical data.
Use in hazardous locations is prohibited.
You can purchase flameproof sensors for hazardous locations from optek. For
these sensors, special instruction manuals are delivered with the sensor.
Unauthorized constructional changes, additional fittings or rebuildings regarding
the sensor are prohibited. The only exception are rebuildings into one of the
variants listed in the chapter "Validity of the instruction manual". Changes to and
interference with the converter program are prohibited as well.
Burying sensor cables underground without protection is prohibited.
The manufacturer is not liable for damage resulting from use contrary to the
intended use.
Following this instruction manual is part of the intended use.
The content of all serial number plates on optek products is model-specific and
refers to the time of delivery.
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Description of AS56-F / AS56-N sensors
4 Description of AS56-F / AS56-N sensors
This sensor is a high precision absorption sensor designed for direct installation
into pipelines and vessels. It is of compact and robust construction with a
measuring segment optimized with respect to flow and sterile requirements. Two
different optical path lengths in combination with an extensive range of
accessories offer maximum flexibility for adaptation to the process.
Fig.1: AS56
The following are the main sensor components:
22 4 315
Fig.2: Schematic AS16 / AS56
1 Optical path length (OPL) 2 Sapphire window
3 Lamp 4 Optics module with filter
5 Detector
The process medium is penetrated by a precisely focused, constant light beam.
A hermetically sealed silicon photodiode measures intensity of incoming and
optically filtered light and supplies the converter with it in form of photocurrent.
Attenuation of light intensity, as a result of absorption and/or scattering of
substances in the process medium, is described by the Lambert-Beer Law. It
states that the logarithm of the transmission loss is proportional to the
concentration of the substance. This is true for dissolved substances and
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Description of AS56-F / AS56-N sensors
undissolved material. Depending on the particular material properties,
concentrations can be detected in ppm as well as in %.
According to this law, the extinction coefficient, defined through ingredient and
wavelength, affects the logarithm of the transmission loss, too. Therefore, the
choice of wavelength or range of wavelengths is of decisive importance for the
measurement and is defined for each measurement type with the help of optical
filters.
The third factor of influence in the Lambert-Beer Law is the path length of light
passing through the process medium. Equally proportional, the path length, too, is
an important aspect with regard to specification of a photometer. The distance to
be covered by light is defined through the optical path length (OPL), that is the
distance between the windows in the measuring segment of the sensor. The OPL
of your sensor is given on its serial number plate.
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