Burkert 8221 User manual
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 8221
Conductivity sensor
Leitfähigkeitssensor
Sonde de conductivité
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert SAS, 2013 - 2019
Operating Instructions 1901/02_EU-ML_00565354_Original_FR
Type 8221
1. ABOUT THE OPERATING INSTRUCTIONS .......................................4
1.1. Symbols used .............................................................................. 4
1.2. Definition of the word product ................................................. 4
2. INTENDED USE ................................................................................................5
3. BASIC SAFETY INFORMATION ...............................................................5
4. GENERAL INFORMATION ...........................................................................6
4.1. International contacts.................................................................6
4.2. Warranty conditions ................................................................... 6
4.3. Information on the internet ........................................................6
5. RATING PLATE ..................................................................................................7
6. TECHNICAL DATA ...........................................................................................7
6.1. Conformity to standards and directives................................. 7
6.2. Conformity to the pressure equipment directive ................. 7
6.3. Materials ........................................................................................9
6.4. General technical data ............................................................10
6.5. Dimensions .................................................................................16
7. INSTALLATION ...............................................................................................16
7.1. Safety instructions ....................................................................16
7.2. Product with 2 electrodes and a clamp connection .........17
7.3. Product with a G1¼'' connection .........................................20
7.4. Product with a G1'', a G¾'' or a NPT¾'' connection .......21
7.5. Product with 4 electrodes and a clamp connection .........22
7.6. Product with a 2'' (DN50/40) connection ...........................24
7.7. Product with a PG13.5 connection ......................................24
7.8. Product with a PG13.5 connection onto a direct
welding holder ...........................................................................24
7.9. Product with a PG13.5 connection onto a G1¼''
threaded hygienic holder ........................................................25
7.10. Product with a PG13.5 connection onto a
hygienic holder with clamp connection ..........................26
8. WIRING ...............................................................................................................26
8.1. Product with 4 electrodes and a cable, process
connection 1½'' clamp or G1¼'' ...........................................26
8.2. Product with 4 electrodes and a VarioPin con-
nector, process connection 1½'' clamp, 2'' clamp
or 2'' (DN50/40)........................................................................27
8.3. Product with 4 electrodes, with PG13.5 connection .......28
8.4. Product with 2 electrodes and a cable................................28
8.5. Product with 2 electrodes and a 5-pin M12 male
connector....................................................................................29
9. CALIBRATION ................................................................................................. 29
9.1. Calibration while the product is disassembled from
process .......................................................................................29
9.2. Calibration in the process .......................................................30
10. MAINTENANCE AND TROUBLESHOOTING ................................ 30
10.1. Safety instructions ...................................................................30
10.2. Maintenance of the product ..................................................31
11. SPARE PARTS AND ACCESSORIES ...............................................31
12. PACKAGING, TRANSPORT ...................................................................32
13. STORAGE .......................................................................................................32
14. DISPOSAL OF THE PRODUCT ........................................................... 32
Table of contents
3
English
1. ABOUT THE OPERATING
INSTRUCTIONS
The Operating Instructions describe the entire life cycle of the
product. Please keep the Operating Instructions in a safe place,
accessible to all users and any new owners.
The Operating Instructions contain important safety
information.
Failure to comply with these instructions can lead to hazardous
situations. Pay attention in particular to the chapters "3. Basic
safety information" and "2. Intended use".
▶Whatever the version of the product, the Operating Instructions
must be read and understood.
1.1. Symbols used
danger
Warns against an imminent danger.
▶Failure to observe this warning results in death or in serious injury.
Warning
Warns against a potentially dangerous situation.
▶Failure to observe this warning can result in serious injury or
even death.
CaUTiOn
Warns against a possible risk.
▶Failure to observe this warning can result in substantial or minor
injuries.
nOTiCe
Warns against material damage.
Indicates additional information, advice or important
recommendations.
Refers to information contained in these Operating Instruc-
tions or in other documents.
▶Indicates an instruction to be carried out to avoid a danger, a
warning or a possible risk.
→Indicates a procedure to be carried out.
1.2. Definition of the word product
The word "product" used in these Operating Instructions always
refers to the conductivity sensor Type 8221.
4
About the Operating Instructions
Type 8221
English
2. INTENDED USE
Use of the product that does not comply with the instructions
could present risks to people, nearby installations and the
environment.
The product is intended to measure the electrolytic conductivity of
a solution.
▶Use the product only in combination with foreign devices or
foreign components recommended or approved by Bürkert.
▶Use the product in compliance with the characteristics and
commissioning and use conditions specified in the contractual
documents and in the Operating Instructions.
▶Never use the product for security applications.
▶Store, transport, install and operate the product properly.
▶Only operate a product in perfect working order.
▶Only use the product as intended.
3. BASIC SAFETY INFORMATION
This safety information does not take into account any contingencies
or occurrences that may arise during installation, use and mainte-
nance of the product.
The operating company is responsible for the respect of the local
safety regulations including for the staff safety.
Risk of injury due to high pressure in the installation.
▶Before any intervention on the installation, stop the circulation of
fluid, cut off the pressure and drain the pipe.
▶Observe the dependency between the fluid temperature and the
fluid pressure. See Fig. 2 chap. 6.4.
Risk of burn injury due to electrical voltage.
▶Observe all applicable accident protection and safety regula-
tions for electrical equipment.
Risk of burn injury due to high fluid temperatures.
▶Do not touch with bare hands the parts of the product that are
in contact with the fluid.
▶Before opening the pipe, stop the circulation of fluid and drain
the pipe.
Risk of injury due to the nature of the fluid.
▶Respect the prevailing regulations on accident prevention and
safety relating to the use of dangerous fluids.
5
Intended use
Type 8221
English
Various dangerous situations.
To avoid injury:
▶Do not use the product in explosive atmospheres.
▶Do not use the product in an environment incompatible with the
materials it is made of.
▶Do not use fluid that is incompatible with the materials the
product is made of.
▶Do not subject the product to mechanical stress.
▶Do not make any modifications to the product.
▶Prevent any unintentional power supply switch-on.
▶Only qualified and skilled staff can carry out the installation and
maintenance work.
▶Guarantee a defined or controlled restarting of the process,
after a power supply interruption.
▶Observe the general technical rules.
nOTiCe
The product may be damaged by the measured fluid.
▶Systematically check the chemical compatibility of the com-
ponent materials of the product and the fluids likely to come
into contact with the materials (for example: alcohols, strong
or concentrated acids, aldehydes, alkaline compounds, esters,
aliphatic compounds, ketones, halogenated aromatics or hydro-
carbons, oxidants and chlorinated agents).
4. GENERAL INFORMATION
4.1. International contacts
The addresses of our international sales offices are available on the
last page of these Operating Instructions.
They are also available on the internet at: www.burkert.com
4.2. Warranty conditions
The condition governing the legal warranty is the conforming use of
the product in observance of the operating conditions specified in
these Operating Instructions.
4.3. Information on the internet
You can find the Operating Instructions and technical data sheets
related to the Type 8221 at: www.burkert.com
6
General information
Type 8221
English
5. RATING PLATE
COND 8221 PEEK SST CLAMP
ID-Nr: 00564064
REF 243641 T: -20...135°C
LOT 1234567 p: 0...6 bar
SN 1001 2018-12-04 0,1...500000 uS/cm
12
4
3
78
5
6
9
10
11
1. Measured quantity and type of the product
2. Materials
3. Type of connection
4. Fluid temperature range
5. Fluid pressure range
6. Fluid conductivity measurement range (µS/cm)
7. Manufacturing code
8. Serial number
9. Lot number
10. Internal code
11. Article number
Fig. 1: Rating plate of a product with 4 electrodes (example)
6. TECHNICAL DATA
The rating plate of the product gives important technical data.
▶Always respect the data given on the rating plate.
6.1. Conformity to standards and
directives
The applied standards, which verify conformity with the EU direc-
tives, can be found on the EU-type examination certificate and/or the
EU declaration of conformity (if applicable).
6.2. Conformity to the pressure
equipment directive
→Make sure the product materials are compatible with the fluid.
→Make sure the pipe DN and the PN are adapted for the product.
The product conforms to Article 4, Paragraph 1 of the Pressure
Equipment Directive 2014/68/EU under the following conditions:
7
Rating plate
Type 8221
English
• Product used on a piping (PS = maximum admissible pressure;
DN = nominal diameter of the pipe)
Type of fluid Conditions
Fluid group 1, Article 4, Paragraph 1.c.i DN≤25
Fluid group 2, Article 4, Paragraph 1.c.i DN≤32
or PSxDN≤1000
Fluid group 1, Article 4, Paragraph 1.c.ii DN≤25
or PSxDN≤2000
Fluid group 2, Article 4, Paragraph 1.c.ii
DN≤200
or PS≤10
or PSxDN≤5000
• Product used on a vessel (PS = maximum admissible pressure)
Type of fluid Conditions
Fluid group 1, Article 4, Paragraph 1.a.i PS ≤ 200 bar
Fluid group 2, Article 4, Paragraph 1.a.i PS ≤ 1000 bar
Fluid group 1, Article 4, Paragraph 1.a.ii PS ≤ 500 bar
Fluid group 2, Article 4, Paragraph 1.a.ii PS ≤ 1000 bar
8
Technical data
Type 8221
English
6.3. Materials
Process
connection
Electrical
connection
Number of
electrodes
Materials Surface finish
Electrodes Frame Seal
1½'' clamp 5-pin M12 male
connector 2Stainless steel
316L Stainless steel 316L
PEEK with FDA approval
(CFR 177.2415)
EPDM with
FDA approval
(CFR 177.2600)
0.4 µm,
electro-polished
G1'' 5-pin M12 male
connector 2Stainless steel
316L
G¾''
NPT¾''
1½'' clamp Cable 2 Stainless steel Stainless steel
PTFE EPDM
1½'' clamp,
short and long
VarioPin male
connector 4
Stainless steel
1.4435/316L
Stainless steel
1.4435/316L
PEEK with FDA approval
EPDM with FDA
approval
1½'' clamp,
short and long Cable 4Stainless steel
1.4435/316L
PEEK with FDA approval
(CFR 177.2415)
G1¼'' 4
2'' clamp
VarioPin male
connector
4
2'' (DN50/40)* 4
PG13.5 4 PEEK with FDA approval
(CFR 177.2415)
* Adapted for GEA Tuchenhagen VARINLINE process connections
9
Technical data
Type 8221
English
6.4. General technical data
→Obey the dependency between the liquid temperature and liquid
pressure, given in Fig. 2.
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-20 0 +20 +40+60 +80 +100 +120 +140
20
19
18
17
Liquid pressure [bar]
Liquid temperature [°C]
Operating range for conductivity sensors with 4 elec-
trodes and connection: 2'' clamp, 2'' (DN50/40) adapted
for GEA Tuchenhagen VARINLINE process connections,
PG13.5
Operating range for conductivity sensors with 2 elec-
trodes, with 5-pin M12 male connector and process con-
nection: 1½'' clamp, G1", G¾" and NPT¾"
Operating range for conductivity sensors with 2 elec-
trodes and connection 1½'' clamp with M12 connector
Operating range for conductivity sensors with 2 elec-
trodes and connection 1½'' clamp with cable
Operating range for conductivity sensors with 4 elec-
trodes and connection: G1¼'', 1½'' clamp (short and long
insertion depth)
Fig. 2: Liquid temperature / liquid pressure dependency diagram
10
Technical data
Type 8221
English
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