Optek TF16 User manual

Instruction Manual
optek-sensors TF16
optek-Manual--1004-2006-02--TF16-US-2011-06-20
PN: 1004-2006-02 (-52)
optek-Danulat GmbH
Emscherbruchallee 2
45356 Essen
Germany
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.optek.com

Preface
optek-Manual--1004-2006-02--TF16-US-2011-06-20
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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 in digital
format (Acrobat®Reader 7.0 required).
Our products are being continuously improved. Technical data is subject to
change without notice.
Essen, May 2011

Table of contents
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Table of contents
Preface
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 TF16 / TF16-N sensors ...................................................................................5
5 Technical data and exploded views ......................................................................................7
5.1 Exploded view of TF16 / TF16-N sensor............................................................................ 11
5.2 Exploded view of TF16-HT / TF16-HT-N sensor ................................................................ 12
5.3 Exploded view of TF16-PV / TF16-PV-N sensor ................................................................ 13
5.4 Exploded view of TF16-HT-PV / TF16-HT-PV-N sensor .................................................... 14
6 Installation .............................................................................................................................15
6.1 Standard sensor bodies — installation instructions............................................................ 15
6.2 Installation of the sensor.................................................................................................... 16
6.3 Air purge............................................................................................................................ 17
7 Connection to converter C4000 ...........................................................................................18
8 Faults ......................................................................................................................................22

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9 Maintenance ...........................................................................................................................24
9.1 Preventive maintenance .................................................................................................... 24
9.2 Exchange of the lamp module ........................................................................................... 25
9.3 Exchange of detector module ............................................................................................ 26
9.4 Return to operation after the exchange of lamp module and detector module ................... 27
9.5 Spare parts and accessories ............................................................................................. 28
9.5.1 Lamp modules / detector modules / optics modules ................................................ 28
9.5.2 Standard window ..................................................................................................... 29
9.5.3 Gaskets (not wetted) ................................................................................................ 29
9.5.4 Screw sets ............................................................................................................... 29
9.5.5 Small part sets ......................................................................................................... 30
9.5.6 Installation material .................................................................................................. 30
9.5.7 Accessories cable sets ............................................................................................ 30
10 Declaration of conformity .....................................................................................................31
11 Contacts .................................................................................................................................32

Using the instruction manual
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1 Using the instruction manual
1.1 Validity of the instruction manual
This instruction manual is valid for TF16, TF16-N sensors and their variants.
There are the following variants:
•HT
•PV
•HT-PV
Abbreviations mean the following sensor options:
• N near infrared (wavelength range 730 - 970 nm)
• HT high temperature
• PV purge varivent (air purge connections at sensor)
Follow the instruction manual for every operation. If the sensor is not used as
described in this instruction manual, your safety and the sensor function could
be affected.
To keep up reliability of the product, enhance its life cycle and avoid down times,
you have to 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.

Using the instruction manual
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1.2 Pictograms and signal words
Important information in this instruction manual is marked with the following pic-
tograms:
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 pre-
cedes instructions:
Danger!
Electrical voltage.
This pictogram indicates danger due to electrical voltage.
Caution!
This pictogram indicates information on how to avoid material damage.
Note!
This pictogram indicates instructional or general advice.

Returns and disposal
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2 Returns and disposal
2.1 Declaration of decontamination
For the safety of our employees and because of legal regulations we need 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 on 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.
To dispose packaging material, please separate materials into the following
groups:
• Paper / paperboard
• 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.

Intended use
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3 Intended use
The optek-sensors TF16 and their variants are to be applied only as scattered
light turbidimeters for liquids and gases in inline applications according to the
technical data.
The use of the sensors 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 va-
riants listed in the chapter "Validity of the instruction manual". Changes to and
interference with the converter program are prohibited as well.
To lay sensor cables underground without protection is prohibited.
The manufacturer is not liable for damage resulting from misuse.
Following this instruction manual is part of the intended use.

Description of TF16 / TF16-N sensors
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4 Description of TF16 / TF16-N sensors
The TF16 model is a high precision dual channel scattered light turbidimeter. It
measures direct light and light scatterd from particles in the process medium at
an angle of 11°. The sensor is made entirely of stainless steel and designed for
direct installation into pipelines.
Fig. 1 TF16
The following are the main sensor components:
Fig. 2 Schematic TF16
1. Sensor body
2. Windows
3. Optics module
4. Detector (direct light)
5. Detector (scattered light)
6. Optics module
7. Lamp
Its modular construction offers maximum flexibility in adapting to the process,
without affecting the property of measurement. An appropriately defined light
beam penetrates the process medium. The light scattered from particles in the
process medium, e. g. traces of suspended solids, immiscible liquids or gas
bubbles, is detected by eight hermetically sealed silicon photodiodes at an angle
of 11°. Simultaneously, the unscattered light is detected as direct light by
another photodiode. The receiver optics design guarantees that extraneous
lights created inside the sensor body are not included in measurements.
12 276 3
4
5
5

Description of TF16 / TF16-N sensors
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Due to the small scattering angle, direct light and scattered light practically travel
the same distance in the process medium. This is why product specific
disturbances such as color or color changes of the carrier medium as well as
soilings on windows may be optimally compensated.

Technical data and exploded views
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5 Technical data and exploded views
Tab. 1 Technical data TF16
TF16 TF16-PV TF16-HT TF16-HT-PV
Material sensor body made of stainless steel 1.4571, SS 316 Ti (standard)
Special materials 1.4435 (SS 316 L), 1.4539, 1.4462, TFM 4215, Hastelloy®C4, Hastelloy®C22, Titanium,
Tantalum, Monel®400, Inconel®625, PP, others on request.
Line size 1/4" to 8", (DN 6 to DN 200)
Connections ASME-Flange, DIN-Flange, Varivent, JIS-Flange, Tri-Clamp, BBS-Clamp, Female Thread NPT,
Female Thread DIN ISO 228/1 G, Sanitary Thread (DIN 11851), others on request
Gaskets Viton®, EPDM (FDA), EPDM (USP Cl. VI), Kalrez®, Chemraz®, Fluoraz®, Buna (NBR), Silicone,
Viton®/ FEP (FDA), others on request
Windows Pyrex®, Sapphire
Optical path length 40 mm (1.58 '') standard, others on request
Process pressure 10 mbar to 325 bar, (0.15 psi to 4713 psi),
depending on process connection, material and design
Process temperature Data is only valid for appropriate choice of
material of sensor body and gaskets! No ice
formation on sensor!
permanent:
0 °C bis +120 °C, (+32 °F bis +248 °F)
peak (15 min/day):
0 °C bis +150 °C, (+32 °F bis +302 °F)
high temperature version
permanent:
-20 °C to +240 °C, (-4 °F to +464 °F)
periodic 15 min/day:
-20 °C to +260 °C, (-4 °F to +500 °F)
Ambient temperature operation:
0 °C bis +40 °C, (+32 °F bis +104 °F)
(When higher or lower ambient temperatures are given, it may be necessary to impose restrictions
on the admissible process temperature!)
transport:
-20 °C to +70 °C, (-4 °F to +158 °F)
Air purge connectors available as standard
Light source incandescent tungsten lamp: 5.0 V DC, 775 mA, typical lamp life 3 to 5 years
Wavelengths 400 nm - 1100 nm
Detector silicon photodiodes, hermetically sealed
Calibration basic calibration in ppm (DE), FTU, EBC
Measuring range any measuring range between
0 - 0.5 to 500 ppm (DE)
0 - 0.2 to 200 FTU
0 - 0.05 to 50 EBC
Resolution < ± 0.05 % of respective measuring range
Repeatability < ± 0.3 % of respective measuring range
Linearity application specific, < ± 1 % standard solution
Protection all optical parts protected according to IP65 if sensor is constructed as intended, valid for
installation of plug or protection cap
Cable lengths standard: 5, 10, 20, 35, 50 m (16, 33, 66, 115, 164 ft.) maximum: 250 m (820 ft.)
Cable material non-metallic sheathed cable with finely stranded copper conductor according to IEC 228 CL.5,
insulation PVC (-40 °C ... + 70 °C, -40 °F ... +158 °F)
SS-plug-protection special high shielded cable sets, rigid stainless steel plug
Certificates ISO 9001:2000, ATEX, FM, PED, CE, HP0

Technical data and exploded views
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Tab. 2 Technical data TF16-N
TF16-N TF16-PV-N TF16-HT-N TF16-HT-PV-N
Material sensor body made of stainless steel 1.4571, SS 316 Ti (standard)
Special materials 1.4435 (SS 316 L), 1.4539, 1.4462, TFM 4215, Hastelloy®C4, Hastelloy®C22, Titanium,
Tantalum, Monel®400, Inconel®625, PP, others on request.
Line size 1/4" to 8", (DN 6 to DN 200)
Connections ASME-Flange, DIN-Flange, Varivent, JIS-Flange, Tri-Clamp, BBS-Clamp, Female Thread NPT,
Female Thread DIN ISO 228/1 G, Sanitary Thread (DIN 11851), others on request
Gaskets Viton®, EPDM (FDA), EPDM (USP Cl. VI), Kalrez®, Chemraz®, Fluoraz®, Buna (NBR), Silicone,
Viton®/ FEP (FDA), others on request
Windows Pyrex®, Sapphire
Optical path length 40 mm (1.58 '') standard, others on request
Process pressure 10 mbar to 325 bar, (0.15 psi to 4713 psi),
depending on process connection, material and design
Process temperature Data is only valid for appropriate choice of
material of sensor body and gaskets! No ice
formation on sensor!
permanent:
0 °C bis +120 °C, (+32 °F bis +248 °F)
peak (15 min/day):
0 °C bis +150 °C, (+32 °F bis +302 °F)
high temperature version
permanent:
-20 °C to +240 °C, (-4 °F to +464 °F)
periodic 15 min/day:
-20 °C to +260 °C, (-4 °F to +500 °F)
Ambient temperature operation:
0 °C bis +40 °C, (+32 °F bis +104 °F)
(When higher or lower ambient temperatures are given, it may be necessary to impose restrictions
on the admissible process temperature!)
transport:
-20 °C to +70 °C, (-4 °F to +158 °F)
Air purge connectors available as standard
Light source incandescent tungsten lamp: 5.0 V DC, 775 mA, typical lamp life 3 to 5 years
Wavelengths 730 nm - 970 nm
Detector silicon photodiodes, hermetically sealed
Calibration basic calibration in ppm (DE), FTU, EBC
Measuring range any measuring range between
0 - 0.5 to 500 ppm (DE)
0 - 0.2 to 200 FTU
0 - 0.05 to 50 EBC
Resolution < ± 0.05 % of respective measuring range
Repeatability < ± 0.3 % of respective measuring range
Linearity application specific, < ± 1 % standard solution
Protection all optical parts protected according to IP65 if sensor is constructed as intended, valid for
installation of plug or protection cap
Cable lengths standard: 5, 10, 20, 35, 50 m (16, 33, 66, 115, 164 ft.)
maximum: 250 m, (820 ft.)
Cable material non-metallic sheathed cable with finely stranded copper conductor according to IEC 228 CL.5,
insulation PVC (-40 °C ... + 70 °C, -40 °F ... +158 °F)
SS-plug-protection special high shielded cable sets, rigid stainless steel plug
Certificates ISO 9001:2000, ATEX, FM, PED, CE, HP0

Technical data and exploded views
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Fig. 3 Schema for determining dimensions
• A = installation height (in mm)
• B = installation length detector side (in mm)
• C = installation length lamp side (in mm)
Table 3 indicates a part of our extensive range of sensor bodies. Other sensor
bodies with diverse process connections and made of many other materials are
available (see table 1 on page 7 and table 2 on page 8).
Detailed technical information is given in the instruction manual "Sensor bodies
according to Pressure Equipment Directive, Module E1" of the corresponding
sensor body.
Moreover, Varivent adapters are available in different line sizes to allow quick
and easy adaptation to pipelines.
Tab. 3 Sensor dimensions in dependence of specifications of standard sensor body
Process connection Part.-No. Material Design Line
size OPL A-A*) [mm] A [mm] B [mm] C [mm]
NPT Female thread
(ASME B1.20.1) 0120-1104-03 1.4571 /
SS 316 Ti 1" 40 96 160 195
Female thread
(DIN ISO 228/1-G) 0120-1103-03 1.4571 /
SS 316 Ti 1" 40 96 160 195
Clamp
(ISO 2852-1993) 0120-1102-28 SS 316 L 1" 40 96 160 195
Clamp
(ISO 2852-1993) 0120-1302-28 SS 316 L 1.5" 40 106 160 195
Clamp
(ISO 2852-1993) 0120-0402-28 SS 316 L 2" 40 112 160 195
Sanitary thread SC
(DIN 11851) 0120-1101-03 1.4571 /
SS 316 Ti welded DN 25 40 125 160 195
Sanitary thread SC
(DIN 11851) 0120-1301-03 1.4571 /
SS 316 Ti welded DN 40 40 125 160 195
Sanitary thread SC
(DIN 11851) 0120-0401-03 1.4571 /
SS 316 Ti welded DN 50 40 125 160 195
Sanitary thread SC
(DIN 11851) 0120-0501-03 1.4571 /
SS 316 Ti welded DN 65 50 140 165 200
Sanitary thread SC
(DIN 11851) 0120-0601-03 1.4571 /
SS 316 Ti welded DN 80 50 180 165 200
Sanitary thread SC
(DIN 11851) 0120-0701-03 1.4571 /
SS 316 Ti welded DN 100 60 200 170 205
Flange
(ASME B16.5 RF, 150 lbs) 0120-1106-03 1.4571 /
SS 316 Ti welded 1" 40 150 160 195
Flange
(ASME B16.5 RF, 150 lbs) 0120-1306-03 1.4571 /
SS 316 Ti welded 1.5" 40 150 160 195

Technical data and exploded views
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*) Optical path length (OPL) using standard windows model A is given in column
OPL A-A.
For the TF16 sensor, the sensor body and window combination have to be
chosen so that a type A window is installed on the detector side and the optical
path length is 40 mm (1.58 ''). That means, if a sensor body with 50 mm (1.97 '')
OPL A-A is chosen, a type A window has to be installed on the detector side and
a type C window has to be installed on the lamp side.
Flange
(ASME B16.5 RF, 150 lbs) 0120-0406-03 1.4571 /
SS 316 Ti welded 2" 40 150 160 195
Flange
(ASME B16.5 RF, 150 lbs) 0120-0606-03 1.4571 /
SS 316 Ti welded 3" 50 225 165 200
Flange
(ASME B16.5 RF, 150 lbs) 0120-0706-03 1.4571 /
SS 316 Ti welded 4" 60 230 170 205
Flange
(DIN 2633, E) 0120-1115-03 1.4571 /
SS 316 Ti welded DN 25 40 150 160 195
Flange
(DIN 2633, E) 0120-1315-03 1.4571 /
SS 316 Ti welded DN 40 40 150 160 195
Flange
(DIN 2633, E) 0120-0415-03 1.4571 /
SS 316 Ti welded DN 50 40 150 160 195
Flange
(DIN 2633, E) 0120-0515-03 1.4571 /
SS 316 Ti welded DN 65 50 150 165 200
Flange
(DIN 2633, E) 0120-0615-03 1.4571 /
SS 316 Ti welded DN 80 50 215 165 200
Flange
(DIN 2633, E) 0120-0715-03 1.4571 /
SS 316 Ti welded DN 100 60 220 170 205
Clamp
(TC L14 AM7) 0120-2918-08 1.4435 /
SS 316 L Biotech 1" 40 96 160 195
Clamp
(TC L14 AM7) 0120-1946-08 1.4435 /
SS 316 L Biotech 1.5" 40 106 160 195
Clamp
(TC L14 AM7) 0120-2914-08 1.4435 /
SS 316 L Biotech 2" 40 112 160 195
Tab. 3 Sensor dimensions in dependence of specifications of standard sensor body
Process connection Part.-No. Material Design Line
size OPL A-A*) [mm] A [mm] B [mm] C [mm]
Tab. 4 Cable weights
Cable Weight
Lamp cable (1.5 mm2)0.9 kg / 10 m
Lamp cable (2.5 mm2)1.2 kg / 10 m
Lamp cable (4.0 mm2)1.5 kg / 10 m
Detector cable (TF16) 1.2 kg / 10 m

Technical data and exploded views
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5.1 Exploded view of TF16 / TF16-N sensor
Fig. 4 Photo and exploded view of TF16 / TF16-N
5876 4 3211312 14
20 21
20 22
10 16
719 18
7915
11 10
9
18 17 7
Tab. 5 Exploded view explanations
No Explanation No Explanation
1 Sensor body 12 Window ring M58 x 1.5, incl. 8 screws M5
2 Window ring M24 x 1.5, incl. 8 screws M5 13 O-Ring 50.52 x 1.78, Viton®
3O-Ring 25.12 x 1.78, Viton®14 Detector assembly TF16, 1.4571 (316 Ti)
4Lamp adapter TF16, 1.4571 (316 Ti), incl.
wavelength module (see Table 13 on page 28) 15 Detector socket, 9-pin
5O-Ring 31.47 x 1.78, Viton®16 Detector cable TF16
6 Optical housing OH06, 1.4571 (316Ti) 17 Lamp cable TF16 with SS-plug-protection
7O-Ring 21.95 x 1.78, Viton®18 4 screws M3 x 12 (DIN 7985), 1.4571 (316Ti), incl.
washer
8 lamp module TF16 19 Detector cable TF16 with SS-plug-protection
9O-Ring 10.10 x 1.60, Viton®20 O-Ring 4.00 x 1.00 Viton®
10 4 screws M3 x 6 (DIN 7985), 1.4571 (316Ti) 21 Screw M5 x 6 (DIN 84), 1.4571 (316 Ti)
11 Lamp cable TF16 22 Purge connection M5, Ms/Ni

Technical data and exploded views
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5.2 Exploded view of TF16-HT / TF16-HT-N sensor
Fig. 5 Photo and exploded view of TF16-HT / TF16-HT-N
Note!
For TF16-HT, the cable set always has to be equipped with plug-protection.
5876 4 3211312 14
20 21
20 22
719 18
79159
18 17 7
Tab. 6 Exploded view explanations
No. Explanation No. Explanation
1 Sensor body 12 Window ring M58 x 1.5, incl. 8 screws M5
2 Window ring M24 x 1.5, incl. 8 screws M5 13 O-Ring 50.52 x 1.78, Viton®
3O-Ring 25.12 x 1.78, Viton®14 Detector assembly TF16-HT, 1.4571 (316 Ti) / PEEK
4Lamp adapter TF16-HT, PEEK, incl. wavelength
module (see table 13 on page 28) 15 Detector socket, 9-pin
5O-Ring 31.47 x 1.78, Viton®16 -
6 Optical housing OH06, 1.4571 (316Ti) 17 Lamp cable TF16 with SS-plug-protection
7O-Ring 21.95 x 1.78, Viton®18 4 screws M3 x 12 (DIN 7985), 1.4571 (316Ti),
incl. washer
8 lamp module TF16 19 Detector cable TF16 with SS-plug-protection
9O-Ring 10.10 x 1.60, VitonÆ20 O-Ring 4.00 x 1.00 Viton®
10 - 21 Screw M5 x 6 (DIN 84), 1.4571 (316 Ti)
11 - 22 Purge connection M5, Ms/Ni

Technical data and exploded views
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5.3 Exploded view of TF16-PV / TF16-PV-N sensor
Fig. 6 Photo and exploded view of TF16-PV / TF16-PV-N
18
9
17 7
786453
1011
18719
2 1 12 13 14 157
20 21
9
20 22
10 16
22 20
21 20
Tab. 7 Exploded view explanations
No. Explanation No. Explanation
1 Sensor body 12 Window ring M58 x 1.5, incl. 8 screws M5
2 Window ring M24 x 1.5, incl. 8 screws M5 13 O-Ring 50.52 x 1.78, Viton®
3O-Ring 25.12 x 1.78, Viton®14 Detector assembly TF16, 1.4571 (316 Ti)
4Lamp adapter TF16, 1.4571 (316 Ti), incl.
wavelength module (see table 13 on page 28) 15 Detector socket, 9-pin
5O-Ring 31.47 x 1.78, Viton®16 Detector cable TF16
6 Optical housing OP06 Purge, 1.4571 (316Ti) 17 Lamp cable TF16 with SS-plug-protection
7O-Ring 21.95 x 1.78, Viton®18 4 screws M3 x 12 (DIN 7985), 1.4571 (316Ti), incl.
washer
8 lamp module TF16 19 Detector cable TF16 with SS-plug-protection
9O-Ring 10.10 x 1.60, Viton®20 O-Ring 4.00 x 1.00 Viton®
10 4 screws M3 x 6 (DIN 7985), 1.4571 (316Ti) 21 Screw M5 x 6 (DIN 84), 1.4571 (316 Ti)
11 Lamp cable TF16 22 Purge connection M5, Ms/Ni

Technical data and exploded views
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5.4 Exploded view of TF16-HT-PV / TF16-HT-PV-N sensor
Fig. 7 Photo and exploded view of TF16-HT-PV / TF16-HT-PV-N
Note!
For TF16-HT-PV, the cable set always has to be equipped with plug-protection.
18
9
17 7
786453
18719
2 1 12 13 14 157
20 21
9
20 22
22 20
21 20
Tab. 8 Exploded view explanations
No. Explanation No. Explanation
1 Sensor body 12 Window ring M58 x 1.5, incl. 8 screws M5
2 Window ring M24 x 1.5, incl. 8 screws M5 13 O-Ring 50.52 x 1.78, Viton®
3O-Ring 25.12 x 1.78, Viton®14 Detector assembly TF16-HT, 1.4571 (316 Ti) / PEEK
4Lamp adapter TF16-HT, PEEK, incl. wavelength
module (see table 13 on page 28) 15 Detector socket, 9-pin
5O-Ring 31.47 x 1.78, Viton®16 -
6 Optical housing OP06 Purge, 1.4571 (316Ti) 17 Lamp cable TF16 with SS-plug-protection
7O-Ring 21.95 x 1.78, Viton®18 4 screws M3 x 12 (DIN 7985), 1.4571 (316Ti), incl.
washer
8 lamp module TF16 19 Detector cable TF16 with SS-plug-protection
9O-Ring 10.10 x 1.60, Viton®20 O-Ring 4.00 x 1.00 Viton®
10 - 21 Screw M5 x 6 (DIN 84), 1.4571 (316 Ti)
11 - 22 Purge connection M5, Ms/Ni

Installation
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6Installation
6.1 Standard sensor bodies — installation instructions
Installation instructions are provided in the armatures instruction manual.

Installation
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6.2 Installation of the sensor
Tool • not needed
Install sensor as described below:
Note!
O-Rings are delivered separately and are not installed at delivery.
1. Check that there are O-Rings for the sensor assemblies.
2. Place one O-Ring each into the groove of the window rings (see fig. 8).
Fig. 8 O-Ring at window ring
Danger!
Isopropanol is irritating!
Observe the safety regulations when handling Isopropanol!
3. Make sure that the windows of the sensor body are clean. If not, clean them
with Isopropanol.
4. Check the window ring threads for damage and soiling and clean them if
necessary.
5. Screw on sensor assemblies for detector and lamp sides to the sensor body
hand-tight (right-hand thread, fig. 9). It is recommended to use the supplied
installation paste.
Fig. 9 Installed sensor, example TF16 sensor