Burkert 8203 User manual

www.burkert.com
We reserve the right to make
technical changes without notice.
Technische Änderungen
vorbehalten.
Sous réserve de modifications
techniques.
© Bürkert S.A.S, 2008-2017
Operating Instructions
1707/05_EU-ml_00560756
Type 8203
pH probes or Redox potential probes
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
2
ABOUT THIS MANUAL ....................................................................3
SYMBOLS USED ................................................................................ 4
INTENDED USE ...................................................................................5
BASIC SAFETY INFORMATION ..................................................6
GENERAL INFORMATION ..............................................................8
DESCRIPTION ......................................................................................9
TECHNICAL DATA ........................................................................... 12
ASSEMBLY ............................................................................................ 21
MAINTENANCE ................................................................................. 23
PACKAGING, TRANSPORT, STORAGE ................................ 27
DISPOSAL OF THE PRODUCT ................................................ 28
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ABOUT THIS MANUAL
This manual describes the entire life cycle of the product.
Please keep this manual in a safe place, accessible to all
users and any new owners.
This manual contains important safety information.
Failure to comply with these instructions can lead to
hazardous situations.
• This manual must be read and understood.
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SYMBOLS USED
The following symbols are used in this manual:
DANGER
Warns you against an imminent danger.
• Failure to observe this warning can result in death or in
serious injury.
WARNING
Warns you against a potentially dangerous situation.
• Failure to observe this warning can result in serious
injury or even death.
CAUTION
Warns you against a possible risk.
• Failure to observe this warning can result in substantial
or minor injuries.
NOTE
Warns you against material damage.
advice or important recommendations for your safety
and for the correct operation of the product.
→indicates a procedure to be carried out.
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INTENDED USE
Use of the pH/Redox probe type 8203 that does not
comply with the instructions could present risks to
people, nearby installations and the environment.
• The probe is used to measure:
- the pH in clean liquids or liquids containing solids,
sulphides or proteins.
- or the oxidation reduction potential in clean liquids
or liquids containing solids, sulphides or proteins
which may present low conductivity.
• This product must be used in compliance with the
characteristics and commissioning and use conditions
specified in the contractual documents and in the user
manual.
• Requirements for safe and proper operation are proper
transport, storage and installation as well as careful
operation and maintenance.
• Only use the product as intended.
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Restraints
Observe any existing restraints when the product is exported.
Foreseeable misuse
• Do not use the pH / Redox probes in an explosive
atmosphere.
• Do not use fluid that is incompatible with the materials of
which the probe is made.
BASIC SAFETY INFORMATION
This safety information does not take into account:
• any contingencies or occurences that may arise during
assembly, use and maintenance of the devices.
• the local safety regulations that the operator must ensure
the staff in charge of assembly observe.
Danger due to high pressure in the installation.
Danger due to high temperatures of the fluid.
Danger due to the nature of the fluid.
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Various dangerous situations
To avoid injury take care to:
• prevent any power supply switch on.
• carry out the installation and maintenance work by
qualified and skilled staff with the appropriate tools.
• use the device only if in perfect working order and in com-
pliance with the instructions provided in the user manual.
• observe the general technical rules during the planning
and use of the device.
NOTE
Chemical compatibility of materials in contact with
the fluid.
• Systematically check the chemical compatibility of the
component materials of the probe and the fluids likely
to come into contact with it (for example: alcohols,
strong or concentrated acids, aldehydes, alkaline
compounds, esters, aliphatic compounds, ketones,
halogenated aromatics or hydrocarbons, oxidants and
chlorinated agents).
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GENERAL INFORMATION
Contact
The addresses of our international branches can be found
on the last pages of this manual.
Also on the internet, at:
www.burkert.com
Warranty conditions
The condition to benefit from the warranty is the conforming
use of the pH/Redox probe in observance of the specified
conditions of operating.
Information on the internet
You can find the user manual and technical data sheet
regarding type 8203 at:
www.burkert.com
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DESCRIPTION
Sphere of application
The pH/Redox probe is used to measure:
• the pH in clean liquids or liquids containing solids, sul-
phides or proteins.
• or the oxidation reduction potential in clean liquids or
liquids containing solids, sulphides or proteins which
may present low conductivity.
General description
• The pH probe is a glass membrane with variable
selectivity according to the pH. When the pH probe
is immersed in a solution, a difference in potential is
formed, due to the hydrogen ions (H+), between the
glass membrane and the solution. This difference in
potential, measured in relation to a reference electrode,
is directly proportional to the pH value (59.16 mV per pH
unit at 25°C).
• When a Redox probe is immersed in a solution, an
exchange of electrons occurs between the oxidised form
and the reduced form of an electrolyte. The resulting
voltage is the oxidation reduction potential.
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Data inscribed on the probe
Logotrode pH 120
ID-Nr.: 427114 Storage: 4 - 30°C
REF 238723 Quality Control:
LOT 1720548 Slope (pH 4, pH 7): > 57mV/pH
2016-10-10 Zero point: 0mV +/- 20 mV
1
2
3
45
8
6
7
1 Probe name, physical parameter measured and
length in mm
2 Ordering code
3 Internal code
4 Lot number
5 Manufacturing code
6 Value of the zero point
7 Value of the slope
8 Storage ambient temperature
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Versions available
The following versions of the pH or Redox probe are
available.
Probe Order code
pH probe, FLATRODE pH, 120 mm 561025
pH probe, LOGOTRODE pH, 120 mm 427114
pH probe, UNITRODE PLUS pH,
120 mm
560376
pH probe, CERATRODE pH, 120 mm 418319
pH probe, PLASTRODE pH, 120 mm 560377
pH probe, FERMTRODE VP pH,
120 mm
561727
Redox probe, FLATRODE Redox,
120 mm
561027
Redox probe, LOGOTRODE Redox,
120 mm
560379
Redox probe, UNITRODE Redox,
120 mm
560378
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TECHNICAL DATA
Specifications common to all
the probes
pH or Redox probe,
combined, 120 mm long
with head PG 13.5, without
temperature probe
FLATRODE pH
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of dia-
phragms
• Reference electrolyte
• Electrical connection
• contaminated
• 0...14 pH
• 0...6 bar
• 0...+80 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 50 µS/cm
• 4 bar
• 1, annular and cen-
tered, in High Density
Polyethylen
• acrylamide gel
• S7/S8
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LOGOTRODE pH
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• clean
• 0...14 pH
• 0...6 bar
• -10...+60 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 2 µS/cm
• 6 bar
• 1 "single poreTM"
• polymer
• S7/S8
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UNITRODE PLUS pH
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• contaminated or con-
taining sulphides or
proteins
• 0...14 pH
• 0...16 bar if fluid tem-
perature < 100 °C,
0...10 bar if fluid tem-
perature between 100
and 130 °C
• 0...+130 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 2 µS/cm
• 6 bar
• 2 "single poreTM"
• polymer
• S7/S8
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CERATRODE pH
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• at high pressure, at high
flow rate
• 0...14 pH
• 0...16 bar
(max. 6 bar at +130°C,
max. 16 bar at +25°C)
• 0...+130 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 50 µS/cm
• 6 bar
• 3 in High Performance
ceramic
• gel
• S7/S8
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FERMTRODE pH VP
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• Fluids containing pro-
teins, cells culture or
injection solutions
• 0...14 pH
• 0...6 bar
• 0...+135 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 100 µS/cm
• 6 bar
• 1 in HP-COATRAMICTM
• Pressurized
FOODLYTETM
• Variopin 6.0
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PLASTRODE pH
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• drinking, aquarium or
swimming pool water
• 0...14 pH
• 0...6 bar
• -10...+40 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 50 µS/cm
• 6 bar
• 1 "single poreTM"
• polymer
• S7/S8
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FLATRODE redox
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• contaminated
• -2000...+2000 mV
• 0...6 bar
• 0...+80 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 50 µS/cm
• 4 bar
• 1 double junction
• acrylamide gel
• S7/S8
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LOGOTRODE redox
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• clean, with a low
conductivity
• -2000...+2000 mV
• 0...6 bar
• -10...+60 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 2 µS/cm
• 6 bar
• 1 "single poreTM"
• polymer
• S7/S8
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UNITRODE PLUS redox
• Type of fluid
• Measurement range
• Fluid pressure
• Fluid temperature
• Ambient temperature
• Minimum conductivity
• Max. pressure at max.
temperature
• Number and type of
diaphragms
• Reference electrolyte
• Electrical connection
• clean, contaminated,
with low conductivity,
containing sulphides or
proteins
• -2000...+2000 mV
• 0...6 bar
• 0...+130 °C
• 0...+60 °C (operation),
+4...+30 °C (storage)
• 2 µS/cm
• 6 bar
• 2 "single poreTM"
• polymer
• S7/S8
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ASSEMBLY
Safety instructions
DANGER
Risk of injury due to high pressure in the installation
• Stop the circulation of fluid and depressurize the pipes
before loosening the fittings.
Risk of injury due to electrical voltage
• Before starting work, make sure that you switch off the
supply voltage and secure it to prevent restarting.
• Observe all applicable accident protection and safety
guidelines for electrical equipment.
Risk of injury due to the nature of the fluid.
• Respect the regulations on accident prevention and
safety relating to the use of aggressive fluids.
Risk of injury due to high fluid temperatures.
• Use safety gloves to handle the device.
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WARNING
Risk of injury due to non-conforming assembly.
• The device must only be assembled by qualified and
skilled staff with the appropriate tools.
Risk of injury due to unintentional switch on of power
supply or uncontrolled restarting of the installation.
• Take appropriate measures to avoid unintentional acti-
vation of the installation.
• Guarantee a set or controlled restarting of the process
subsequent to the assembly of the device.
Fit the probe to a Bürkert
transmitter or a probe armature
→Refer to the user manual for the transmitter or the
armature.
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MAINTENANCE
DANGER
Risk of injury due to the nature of the cleaning or
regeneration solution.
• Respect the prevailing rules on accident prevention and
safety relating to the use of aggressive fluids.
NOTE
The device may be damaged.
• Dry the probe head with a duster before connecting
the probe to the transmitter.
NOTE
The process may be polluted by the cleaning
solution.
• After each cleaning operation, rinse the probe with
distilled water and immerse it in a KCl 3M solution or
running water for 10 minutes.
Lifespan of the probe
The lifespan of a pH/Redox probe depends on the fluid to
be measured and the conditions in which measurements
are taken.
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When the fluid to be measured is aggressive, for example,
and/or the fluid temperature reaches high values, the
lifespan of the probe may be shortened.
When the measuring conditions are favourable (e.g. clean
water) and the fluid temperature remains in the region of
25°C, the probe has a lifespan of 1 to 3 years; the higher
the fluid temperature the lower the lifespan of teh probe.
Storing the probe
• To store the probe:
→put KCl 3M solution, available as an accessory, in the
protective cap
→place the protective cap on the probe
• If the probe has dried out during storage:
→let it soak in a KCI solution for up to one full night if
dehydration is major to obviate incorrect measurements
and drift
Cleaning the probe
• When the probe is dirty, clean it according to the type of
dirt:
- clogging by greases or oils: use a tensioactive-based
cleaner
- limescale or metal hydroxide deposit: use diluted
hydrochloric acid (10%)
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- sulphurous precipitate (e.g. in purification stations):
use a mixture of diluted hydrochloric acid (10%) and
pepsin (saturated)
• Particular case of a probe with a ceramic diaphragm:
- egg white colour pollution: soak the probe in a solu-
tion composed of 0.4% HCl and 5g/l of pepsin for
several hours
- black colouration of the diaphragm (silver precipitate):
immerse the probe in a solution composed of 0.4%
HCl and 76 g/l of thiourea
Regenerating the probe
• To regenerate a pH probe:
→soak the probe in an NaOH solution (0.1 - 1M)
for 10 minutes
→soak the probe in an HCI solution (0.1 - 1M)
for 10 minutes
→rinse the probe by soaking it in a solution of KCl 3M for
at least 15 minutes
• To regenerate a Redox probe:
→clean the metal surface with a slightly abrasive material
such as toothpaste or very fine scouring powder.
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Accessories
Accessory Order
reference
Storage solution for pH/Redox probe
(KCl 3M), 500 ml
418557
Buffer solution, 500 ml, pH = 4.01 418540
Buffer solution, 500 ml, pH = 7 418541
Buffer solution, 500 ml, pH = 10.01 418543
Calibration solution, 500 ml,
Redox potential = 475 mV
418555
Cleaning solution kit for pH/redox
probes, 3x500 ml
560949
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PACKAGING, TRANSPORT,
STORAGE
NOTE
Damage due to transport
Transport may damage an insufficiently protected
product.
• Transport the product in shock-resistant packaging
and away from humidity and dirt.
• Avoid the effects of heat and cold which could cause
the storage temperature range to be exceeded.
• Protect the probe endings by using protection caps.
Poor storage can damage the device.
• Store the probe in a dry place away from dust.
• Storage temperature +4...+30°C.
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DISPOSAL OF THE PRODUCT
→Dispose of the product and its packaging in an environ-
mentally-friendly way.
NOTE
Damage to the environment caused by products
contaminated by fluids.
• Keep to the existing provisions on the subject of waste
disposal and environmental protection.
Note
Comply with the national and/or local regulations
which concern the area of waste disposal.
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