Burkert 8202 ELEMENT User manual

Quickstart
English / Deutsch / Français
Types 8202 / 8222
ELEMENT
pH / Redox or conductivity meter
pH- / Redox- oder Leitfähigkeits-Messgerät
pH / Redox-mètre ou conductivimètre

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modification technique.
© Bürkert SAS, 2012 - 2018
Quickstart 1809/05_EU-ML 00567367 / ORIGINAL_FR

3
Type 8202/8222
Contents
1 ABOUT THIS QUICKSTART ....................................................................4
1.1 Definition of the word “device” ............................................... 4
1.2 Validity of the quickstart ........................................................... 4
1.3 Symbols used .............................................................................4
2 INTENDED USE .............................................................................................5
3 BASIC SAFETY INFORMATION ............................................................6
4 GENERAL INFORMATION ........................................................................7
4.1 Contact ........................................................................................ 7
4.2 Warranty conditions .................................................................. 7
4.3 Information on the internet ......................................................7
5 DESCRIPTION OF THE RATING PLATE ............................................8
6 TECHNICAL DATA ........................................................................................9
6.1 Conditions of use ...................................................................... 9
6.2 Conformity to standards and directives ............................... 9
6.3 Dimensions of devices ...........................................................10
6.4 Mechanical data.......................................................................10
6.5 Fluid data ...................................................................................11
6.6 Electrical data ...........................................................................14
6.7 Data of connectors and cables ............................................15
6.8 pH/Redox probe of the 8202 ...............................................16
6.9 Sensor specifications of the 8222 ......................................16
7 ASSEMBLY .................................................................................................... 16
7.1 Safety instructions ...................................................................16
7.2 Install the display module ......................................................16
7.3 Install the pH or redox probe in the sensor holder of the
8202 (without fluid) .............................................................................17
7.4 Mounting the electronic module to the sensor holder of
the 8202 (without fluid) ......................................................................18
8 INSTALLATION ............................................................................................19
8.1 Safety instructions ...................................................................19
8.2 Installation of the 8202 onto the pipe ................................19
8.3 Installation of the 8222 onto the pipe ................................22
8.4 Wiring.........................................................................................24
9 ADJUSTMENT AND COMMISSIONING ......................................... 28
9.1 Safety instructions ...................................................................28
9.2 Using the navigation button ..................................................29
9.3 Using the dynamic functions.................................................31
9.4 Knowing the display ................................................................31
9.5 Knowing the operating levels ...............................................33
9.6 Knowing the Process level ....................................................34
9.7 Choosing the output wiring mode .......................................35
9.8 Setting the probe parameters of the 8202 .......................35
9.9 Activating/deactivating the Hold function ..........................35
9.10 Calibrate the pH or redox probe (8202) ............................35
9.11 Calibrating the sensor of the 8222 .....................................37
10 PACKAGING, TRANSPORT ..................................................................38
11 STORAGE ......................................................................................................38
12 DISPOSAL OF THE DEVICE ................................................................ 38
English

4
About this quickstart
Type 8202/8222
1 ABOUT THIS QUICKSTART
This quickstart describes the entire life cycle of the device. Please
keep this quickstart in a safe place, accessible to all users and any
new owners.
This quickstart contains important safety information.
Failure to comply with these instructions can lead to hazardous
situations. Pay attention in particular to the chapters „Basic safety
information“ and „Intended use“.
▶Irrespective of the version of the device, this quickstart must be read
and understood.
The quickstart explains how to install, adjust, and start-up the device.
A detailed description of the device can be found in the related
operating instructions.
The operating instructions for the device can be found on the
Internet at: www.burkert.com
1.1 Definition of the word “device”
The word “device” used within this quickstart refers to:
• the Type 8202 ELEMENT pH-meter and redox-meter or
• the Type 8222 ELEMENT conductivity meter.
1.2 Validity of the quickstart
This quickstart is valid for the following devices:
• Type 8202 ELEMENT pH-meter and redox-meter, version V2,
• Type 8222 ELEMENT conductivity meter, version V2.
These informations are available on the rating plate, see chap. 5.
1.3 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.
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5
Intended use
Type 8202/8222
Advice or important recommendations.
Refers to information contained in this quickstart 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.
2 INTENDED USE
Use of this device that does not comply with the instructions
could present risks to people, nearby installations and the
environment.
The Type 8202 ELEMENT pH-meter and redox-meter is intended
solely for the measurement of:
- the pH in clean liquids or liquids containing solids, sulphides
or proteins.
- or the oxidation reduction potential (ORP) in clean liquids or
liquids containing solids, sulphides or proteins which may
present low conductivity.
The Type 8222 ELEMENT conductivity meter is intended for the
measurement of the conductivity.
▶Use this device in compliance with the characteristics and
commissioning and use conditions specified in the contractual
documents and in the Operating Instructions.
▶Never use this device for security applications.
▶Protect this device against electromagnetic interference, ultra-
violet rays and, when installed outdoors, the effects of climatic
conditions.
▶Use this device only if in perfect working order.
▶Requirements for the safe and proper operation of the device
are proper transport, storage and installation, as well as careful
operation and maintenance.
▶Only use the device as intended.
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6
Basic safety information
Type 8202/8222
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 device.
The operating company is responsible for the respect of the local
safety regulations including staff safety.
Risk of injury due to electrical voltage.
▶Shut down the electrical power source of all the conductors and
isolate it before carrying out work on the system.
▶If a 12...36 V DC or a 14...36 V DC powered version is installed
either in a wet environment or outdoors, all the electrical volt-
ages must be of max. 35 V DC.
▶All equipment connected to the device must be double insu-
lated with respect to the mains according to the standard IEC
61010-1:2010.
▶Observe all applicable accident protection and safety regula-
tions for electrical equipment.
Risk of injury due to high pressure in the installation.
▶Stop the circulation of fluid, cut off the pressure and drain the
pipe before loosening the process connections.
Risk of burns due to high fluid temperatures.
▶Use safety gloves to handle the device.
▶Stop the circulation of fluid and drain the pipes before loosening
the process connections.
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.
Various dangerous situations.
To avoid injury take care:
▶not to use the device in explosive atmospheres.
▶not to use the device in an environment incompatible with the
materials it is made of.
▶not to use fluid that is incompatible with the materials the device
is made of.
▶not to subject the device to mechanical loads.
▶not to make any modifications to the device.
▶to prevent any unintentional power supply switch-on.
▶to carry out the installation and maintenance work by qualified
and skilled staff with the appropriate tools.
▶to guarantee a defined or controlled restarting of the process,
after a power supply interruption.
▶to observe the general technical rules when installing and using
the device.
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General information
Type 8202/8222
nOTiCe
The device may be damaged by the fluid in contact with.
▶Systematically check the chemical compatibility of the com-
ponent materials of the device 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).
nOTiCe
Elements / Components sensitive to electrostatic discharges
▶This device contains electronic components that are sensitive
to electrostatic discharges. They may be damaged if they are
touched by an electrostatically charged person or object. In the
worst case scenario, these components are instantly destroyed
or disabled as soon as they are activated.
▶To minimise or even avoid any damage caused by an elec-
trostatic discharge, take all the precautions described in the
EN 61340-5-1 norm.
▶Also make sure that you do not touch any of the live electrical
components.
4 GENERAL INFORMATION
4.1 Contact
To contact the manufacturer of the device, use following address:
Bürkert SAS
Rue du Giessen
BP 21
F-67220 TRIEMBACH-AU-VAL
You may also contact your local Bürkert sales office.
The addresses of our international sales offices are available on the
internet at: www.burkert.com
4.2 Warranty conditions
The condition governing the legal warranty is the conforming use of
the device in observance of the operating conditions specified in the
Operating Instructions.
4.3 Information on the internet
You can find the Operating Instructions and technical data sheets
for Type 8202 and for Type 8222 at: www.burkert.com
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Description of the rating plate
Type 8202/8222
5 DESCRIPTION OF THE RATING
PLATE
8202 pH/ORP Transmitter V2
Supply: 14-36V 40W Max
Output: 1x 4-20mA 2x Trans 1A Max
Cell: pH -2/16 ORP +-2V 120mm PG13.5
Process: Temp 0/50°C limited by cell
PN 16 Bar limited by cell
IP65 -IP67 W41MT
S-N:3054
00559630
Made in France
1
2
3
4
5
6
7
8
9
10
12
1:V+
2:NPN/PNP1
3:0V
4:NPN/PNP2
11
Fig. 1: Rating plate of the device Type 8202 (example)
1. Type of the device, measured variable and version
2. Electrical power supply and power consumption
3. Output specifications
4. Sensor specifications
5. Temperature range of the fluid, without sensor
6. Nominal pressure of the fluid, without sensor
7. Allocation of the pins on the M12 fixed connectors
8. Construction code
9. Article number
10. Serial number
11. Conformity marking
12. Protection rating
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Technical data
Type 8202/8222
6 TECHNICAL DATA
6.1 Conditions of use
Ambient temperature –10...+60 °C (without pH or redox probe
for the 8202)
Air humidity < 85%, non condensing
Protection rating
according to
EN 60529
IP65 and IP67 with connectors plugged
in and tightened and electronic module
cover fully sealed
Operating conditions Continuous
Equipment mobility Fixed
Degree of pollution
(UL and CSA recog-
nized version)
Degree 2 according to EN 61010 -1
Installation category
(UL and CSA recog-
nized version)
Category I according to UL 61010-1 -
Indoor use
Max. height above
sea level
2000 m
6.2 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).
6.2.1 Conformity to the Pressure Equipment
Directive
→Make sure the device materials are compatible with the fluid.
→Make sure the pipe DN and the PN are adapted for the device.
The device conforms to Article 4, Paragraph 1 of the Pressure
Equipment Directive 2014/68/EU under the following conditions:
• Device 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
• Device 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
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Technical data
Type 8202/8222
6.2.2 UL certification
The devices with variable key PU01 or PU02 are UL certified
devices and comply also with the following standards:
• UL 61010-1
• CAN/CSA-C22.2 n°61010-1
Identification on the device Certification Variable key
UL recognized PU01
Measuring
Equipment
EXXXXXX
®
UL listed PU02
6.3 Dimensions of devices
→Please refer to the technical data sheets related to the device at:
www.burkert.com
6.4 Mechanical data
Table 1: Materials used in the device Type 8202 (without the
probe) or the device Type 8222
Part Material
Box / seals stainless steel, PPS / EPDM
Cover / seal PC / silicone
Display module PC / PBT
M12 fixed connector nickel-plated brass (stainless
steel on request)
Fixed connector holder stainless steel 1.4404 (316L)
Screws stainless steel
Nut PVC or PVDF
Sensor holder / seal of the 8202 (*) PVDF, stainless steel 1.4571
(316Ti) / EPDM
pH or Redox probe of the 8202 refer to the related Operating
Instructions
Conductivity sensor of the 8222 (*) PVDF
Pt1000 of the 8222 (*) stainless steel 1.4571 (316Ti)
Electrodes of the 8222
• sensor C=1 • graphite
• sensor C=0.1 or C=0.01 • stainless steel 1.4571
(316Ti)
(*) in contact with the fluid
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Technical data
Type 8202/8222
6.5 Fluid data
Pipe diameter DN25 to DN110 (DN15 to DN20
under specific conditions)
Type of fitting Adapter S022
Nut between the device
and the fitting
G 1 1/2'' internal thread
Max. fluid temperature The fluid temperature may be
restricted by the probe used (see
the related Operating Instructions),
by the pressure of the fluid and
the material of the S022 adapter
(see Fig. 2, Fig. 3, Fig. 4, Fig. 5 and
Fig. 6)
Max. fluid pressure PN16
The fluid pressure may be restricted
by the probe used (see the related
Operating Instructions), by the tem-
perature of the fluid and the material
of the adapter S022 (see Fig. 2,
Fig. 3, Fig. 4, Fig. 5 and Fig. 6)
pH measurement (8202)
• Measurement range • 2...16 pH or –580...+580 mV
• Resolution • 0.001 pH or 0.1 mV
• Measurement deviation • ±0.02 pH or 0.5 mV
• Recommended min.
divergence of the pH
range associated to the
4...20 mA signal
• 0.5 pH unit or 30 mV (e.g.: range
6,7...7,2 pH or –20...+10 mV
associated to the 4...20 mA output
current)
Redox potential measurement (8202)
• Measurement range • –2000...+2000 mV
• Resolution • 1 mV
• Measurement deviation • ±3 mV
• Recommended min.
divergence of the redox
potential range asso-
ciated to the 4...20 mA
signal
• 50 mV (e.g.: range
1550...1600 mV associated to the
4...20 mA output current)
Conductivity measurement (8222)
• Measurement range • 0,05 µS/cm...10 mS/cm
• Resolution • 1 nS/cm
• Measurement deviation • ±3 % of the measured value
• Recommended min. diver-
gence of the conductivity
range associated to the
4...20 mA signal
• 2 % of the full scale (e.g. for the
sensor with C=0.1: range from
100...104 µS corresponds to the
4...20 mA output current)
Temperature measurement
• Measurement range • –40...+130 °C
• Resolution • 0.1 °C
• Measurement deviation • ±1 °C
• Recommended min. diver-
gence of the temperature
range associated to the
4...20 mA signal
• 10 °C (e.g. range +10...+20 °C
corresponds to the 4...20 mA
output current)
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Technical data
Type 8202/8222
Temperature probe • Pt1000 integrated in the sensor
holder (8202)
• Pt1000 integrated in the conduc-
tivity sensor (8222)
Temperature compen-
sation (8202)
Automatic (integrated Pt1000),
Reference temperature = 25°C
Temperature compen-
sation (8222)
• none or
• according to a predefined graph
(NaCl or ultra pure water) or
• according to a graph defined
especially for your process
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
T ( ° C)
P (bar)
A
PVDF
PVC
B
+140
232
217.6
203
188.6
174
159.6
145
130.6
116
101.6
87
72.5
58
43.5
29
14
0
P (psi)
PVDF
A: application range of a 8202 with a PVDF nut
B: application range of a 8202 with a PVC nut
The measures have been made at an ambient temperature of 60 °C
Fig. 2: Fluid temperature / fluid pressure dependency of the 8202
(without the probe) with a PVC or PVDF nut
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Technical data
Type 8202/8222
-20 0 +20 +40 +60 +80 +100 +120
T ( ° C)
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
P (bar)
A
PVDF
PVC
PVDF
B
232
217.6
203
188.6
174
159.6
145
130.6
116
101.6
87
72.5
58
43.5
29
14
0
P (psi)
A: application range of a 8222 with a PVDF nut
B: application range of a 8222 with a PVC nut
The measures have been made at an ambient temperature of 60 °C
Fig. 3: Fluid temperature / fluid pressure dependency of the 8222 with a
PVC or PVDF nut
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
00 +20 +40 +60 T (°C)
P (bar)
PVC + PP
-20
232
217.6
203
188.6
174
159.6
145
130.6
116
101.6
87
72.5
58
43.5
29
14
0
P (psi)
Metal
Fig. 4: Fluid temperature / fluid pressure dependency of the 8202
(without the probe) or the 8222, with a PVC nut and a metal, PVC
or PP S022 adapter
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0-20 0 +20 +40 +60 +80 +100 +140
PVC
PP
T (°C)
P (bar)
PVC + PP
+120
232
217.6
203
188.6
174
159.6
145
130.6
116
101.6
87
72.5
58
43.5
29
14
0
P (psi)
Metal
Fig. 5: Fluid temperature / fluid pressure dependency of the 8202
(without the probe) with a PVDF nut and a metal, PVC or PP S022
adapter
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Technical data
Type 8202/8222
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0-20 0 +20 +40 +60 +80 +100 +140
PVC
PP
T (°C)
P (bar)
PVC + PP
+120
232
217.6
203
188.6
174
159.6
145
130.6
116
101.6
87
72.5
58
43.5
29
14
0
P (psi)
Metal
Fig. 6: Fluid temperature / fluid pressure dependency of the 8222, with a
PVDF nut and a metal, PVC or PP S022 adapter
6.6 Electrical data
Power supply
• Version with 3 outputs • 14...36 V DC, filtered and regulated
• Version with 4 outputs • 12...36 V DC, filtered and regulated
Characteristics of the
power source (not sup-
plied) of the UL versions
• limited power source according to
§9.4 of EN 61010-1 standard
• or class 2 source according to
UL 1310/1585 and EN 60950-1
standards
Current consumption
• Version with 3 outputs • 25 mA max. (at 14 V DC)
• Version with 4 outputs • 5 mA max. (at 12 V DC)
Current consumption,
with loads on the
transistors
1 A max.
Power consumption 40 W max.
Protection against polarity
reversal
yes
Protection against voltage
spikes
yes
Protection against short
circuits
yes, transistor outputs
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Technical data
Type 8202/8222
Transistor output NPN (/sink) or PNP (/source)
(depending on software setting),
open collector, 700 mA max., 0.5 A
max. per transistor if both transistor
outputs are wired.
NPN output: 0.2...36 V DC
PNP output: supply voltage
Current output 4...20 mA, sink ("NPN sink") or
source ("PNP source") (depending
on software setting)
• Response time (10 %
- 90 %)
• 150 ms (default value)
• Version with 1 current
output
• max. loop impedance: 1100W
at 36 V DC, 610W at 24 V DC,
180W at 14 V DC
• Version with 2 current
outputs
• max. loop impedance: 1100W
at 36 V DC, 610W at 24 V DC,
100W at 12 V DC
6.7 Data of connectors and cables
Number of fixed
connectors
Type of connector
1 male M12 fixed
connector
5-pin female M12 connector (not supplied).
For the M12 connector with article number
917116, use a shielded cable:
• diameter: 3...6.5 mm
• wire cross section: max. 0.75 mm2
1 male M12 fixed
connector and 1
female M12 fixed
connector
5-pin female M12 connector (not sup-
plied) and 5-pin male M12 connector (not
supplied).
For the M12 connector with article number
917116, use a shielded cable:
• diameter: 3...6.5 mm
• wire cross section: max. 0.75 mm2
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Assembly
Type 8202/8222
6.8 pH/Redox probe of the 8202
The pH or redox probe must satisfies the following specifications:
• combined probe;
• length: 120 mm;
• with PG 13.5 head;
• with an S7/S8 fixed connector;
• without temperature probe.
The specifications of the probe can be found in the Oper-
ating Instructions of the probe used.
6.9 Sensor specifications of the 8222
Conductivity sensor C=0.01
• Measurement range • 0.05...20 µS/cm
• Type of fluid • ultra-pure water, pure water
Conductivity sensor C=0.1
• Measurement range • 0.5...200 µS/cm
• Type of fluid • pure water, industrial wastewater
Conductivity sensor C=1
• Measurement range • 5 µS/cm...10 mS/cm
• Type of fluid • industrial wastewater, wastewater
7 ASSEMBLY
7.1 Safety instructions
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.
▶Avoid unintentional activation of the installation.
▶Guarantee a set or controlled restarting of the process subse-
quent to any intervention on the device.
7.2 Install the display module
nOTiCe
The tightness of the device is not guaranteed when the cover
is removed.
▶Prevent the projection of liquid inside the housing.
The device may be damaged if a metal component comes
into contact with the electronics.
▶Prevent contact of the electronics with a metallic item.
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17
Assembly
Type 8202/8222
20° →Remove the cover.
→Set the display module
at an angle of ca. 20° in
relation to the desired
position.
a)
b)
c)
d)
The module can be fitted in
4 different positions, at 90°
intervals.
→Fully push in the module
and turn clockwise to
lock it.
1
2
→Check that there is a
seal on the housing and
that it is not damaged.
Replace it if necessary.
→Grease the seal if nec-
essary, using a com-
ponent compatible with
the seal material.
→[1] Set the cover to
ensure that the 4
grooves of the cover
match with the 4 pins of
the housing.
→[2] Turn the cover
clockwise with an angle
of about 15° to lock it.
Fig. 7: Mounting the display module
7.3 Install the pH or redox probe in the
sensor holder of the 8202 (without
fluid)
Following instructions are valid for a Bürkert probe.
If you use a probe from another supplier, respect the related
Operating Instructions.
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18
Assembly
Type 8202/8222
H
probe head
compression washer
seal
→Remove the protective
plugs.
→Check that dimension H on
the probe is between
34 and 46mm. If necessary,
adjust the height of the
compression washer.
A →At first use, apply water
or soapy water on the "A"
seal.
→Insert the seal into the
groove on the holder.
→Insert the probe with its
seal into the holder from
above.
→Tighten the probe head
using a suitable wrench.
Fig. 8: Mounting the probe into the holder of the 8202 (without fluid)
7.4 Mounting the electronic module
to the sensor holder of the 8202
(without fluid)
→Check that the pH or redox probe is mounted into the sensor
holder.
A
B
C
→Check that seal "A" on the
holder is in good condition.
Replace it if necessary.
→Clean connectors "B" and
"C" for connection of the pH/
redox probe with alcohol to
avoid measurement errors.
→Insert the electronic module
into the holder, making sure
the polarising slots are cor-
rectly positioned.
→Apply slight vertical pressure
to engage the seal.
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19
Installation
Type 8202/8222
→Fasten the electronic module
and the holder together by
tightening the G2'' nut.
→Tighten the G2'' nut by hand
only, until it stops turning,
to ensure good electrical
contact.
Fig. 9: Mounting the electronic module to the holder, without fluid (8202)
→Mounting the display module.
→Calibrate the device.
8 INSTALLATION
8.1 Safety instructions
Warning
Risk of injury due to non-conforming installation.
▶The electrical and fluid installation can only be carried out by
qualified and skilled staff with the appropriate tools.
▶Install appropriate safety devices (correctly rated fuse and/or
circuit-breaker).
▶Respect the assembly instructions for the fitting used.
Risk of injury due to unintentional switch on of power supply
or uncontrolled restarting of the installation.
▶Avoid unintentional activation of the installation.
▶Guarantee a set or controlled restarting of the process subse-
quent to any intervention on the device.
8.2 Installation of the 8202 onto the
pipe
Danger
Risk of injury due to high pressure in the installation.
▶Stop the circulation of fluid, cut off the pressure and drain the
pipe before loosening the process connections.
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.
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20
Installation
Type 8202/8222
If a pH/redox probe (with PG 13.5 head, 120 mm long
and without temperature probe) from a supplier other than
Bürkert is used, follow the relevant instructions on instal-
lation in the pipe.
Flow direction
Fig. 10: Mounting positions of the 8202 in the pipe
→Choose an appropriate position in the pipe to install the fitting.
→Fit the pipe with a fitting with G 1” ½ external threaded sensor
connection with respect to the instructions delivered with the
fitting.
75°
75°
Fig. 11: Angle to the vertical (8202)
→Fit the fitting at an angle of ±75° max. to the vertical in order to
ensure the good operation of the pH/redox probe.
The pH or redox probe must always be immersed in the fluid
to prevent it drying out.
→Once the device has been calibrated, remove the electronic
module from the sensor holder as shown Fig. 12.
→Unscrew the nut between the electronic
module and the sensor holder.
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