Digital pH controller - Burkert...

8205 Controller / 8200 Sensor

p. 1/12www.burkert.com

Type 8644

Valve

islands

Digital pH controller

The pH controller is available in different

models:

• Compact pH controller with integrated

pH electrode

• Remote pH controller, for panel or wall

mounting, to connect to the Bürkert Type

8200 pH sensor (max. 10m).

The pH controller or sensor can be installed

into pipes by using INSERTION Type S020 fit-

tings or other suitable installation materials. It

can also be installed in tanks or containers by

using an industrial immersion fitting.

Technical data (common to the various versions)

Type S020

INSERTION fitting

Type 6642

Solenoid valve

Type 7800

Dosing pump

Type 2030

On/Off Diaphragm

valve

• Compact, remote versions for DN 15 to 200

• Fully programmable pH controller functions for all kinds of pH-measurement tasks

• PID controller with pulse or pulse width modulation signal for acid and base control

• Multi language, menu-guided operation

PLC

Type 8205 can be combined with...

General data

Display 15 x 60 mm, 8-digit LCD, alphanumeric, 15 segments, 9 mm high

Electrical connections shielded cable with 1.5 mm2 max. cross-section

Environment

Relative humidity ≤ 80 %, non condensated

Standards, directives and approvals

Standard and directives

EMC Security Pressure Vibration Shock

EN 61000-6-3 (2001), EN 61000-6-2 (2001)

EN 61010-1Complying with article 3 of §3 from 97/23/CE directive.*EN 60068-2-6EN 60068-2-27

* For the 97/23/CE pressure directive, the device can only be used under following conditions (depend on max. pressure, pipe diameter and fluid).

Type of fluid Conditions

Fluid group 1, §1.3.a DN ≤ 25 only

Fluid group 2, §1.3.a DN ≤ 100

Fluid group 1, §1.3.b DN ≤ 100

Fluid group 2, §1.3.b DN ≤ 100


p. 2/12

The wall-mounted version

consists of an electronic

module (PID controller) 8205 in

an IP65 enclosure. The as-

sociated separate pH sensor

is Type 8200.

The output signals are provided on a terminal

strip via cable gland.

System versions

The compact version

combines a pH sensor and an

electronic module (PID control-

ler) with a display in an IP65

enclosure.

The access to the output ter-

minals are provided via two cable glands.

Bürkert designed fitting ensures simple direct

installation of the Bürkert controller into pipes

from DN 15 to DN 200.

The panel-mounted version

consists of an electronic module

(PID controller) 8205 integrated in a

front-cover. The associated sepa-

rate pH sensor is Type 8200.

The output signals are provided on a terminal

strip.

Operation and display

Customized adjustments, such as measuring range, engineering units and alarm setpoints can be carried out menu-supported on site via a multi-lingual

display.

The operation is classified according to three levels.

Main Menu

- pH; setpoints; working rates

- temperature

- output current

- HOLD function

- pH electrode calibration

Calibration Menu

- language

- temperature unit

- measuring range 4-20 mA

- output 1 (lye) settings

- output 2 (acid) settings

- setpoint definition

- pH adjustment

- regulation principle (P, PI or PID)

- alarm threshold

- manual mode activation

- temperature compensation selection

- filter selection

Test Menu

- Offset

- Span

- temperature adjustment

- simulation of pH or temperature value

- display of instantaneous electrode voltage

Direction upwards in menu

Display selection and in-

creasing key (numeric value)

pulses or automatic

Choice of digit values

Steps from 0 to 9

Direction downwards in

menu or sideways for

digit selection

Relay 2 LED (contact closed)

Relay 1 LED (contact closed)

Accept of

chosen parameter

or adjusted value

Control principle

The pH controller Type 8205 is designed for use in static or dynamic process of pH-control. The output signals control a valve or a pump, by means of

pulses which time duration or frequency is computed according to users parameters and pH-value of the fluid.

Static process control Dynamic process controlAcid Base Alarm Acid Base Alarm


p. 3/12

Compact pH controller Type 8205

Pressure / temperature chart

Principle of operation

The most important part of the pH controller

is the pH electrode with its pH selective glass

membrane. When the electrode is immersed

into the solution, an electrical charge caused

by ions (H+) generates a cell voltage between

the glass membrane and the solution. This

electrical voltage is measured with reference to

a reference electrode, located around the pH

glass electrode. The cell voltage of the combi-

nation electrode is directly proportional to the

pH value.

The controller functions in a three wire circuit

and requires a power supply of 15... 30 V DC.

A relay alarm and a 4... 20 mA standard signal

proportional to the pH or to the temperature (°C)

are available as output signals. The pulse output

signals are provided by relay or transistors.

Pressure (bar)

Temperature (°C)

The sensor component consists of a replace-

able combination pH-electrode, screwed into

the sensor housing.

The measured signal is conveyed to the con-

troller via a coax plug.

The Pt1000 for automatic temperature com-

pensation is a standard feature in the sensor

housing.

The controller component converts the meas-

ured signal, displays the actual value and com-

putes the output signals.

General data

Compatibility with fittings S020 (see corresp. datasheet)

Materials

Housing, cover, lid, nut / Screws Front panel foil / Cable glands Wetted parts materials Fitting Sensor holder / Pt1000 Seal

PC / Stainless steelPolyester / PA

Brass, stainless steel 1.4404/316L, PVC, PP or PVDFPVDF / Stainless steel 1.4571 (316Ti)

FKM (EPDM included in delivery)

Electrode UNITRODE PLUS pH

Electrical connection Cable glands M20 x 1.5

Complete device data (fitting + Electronics)

Pipe diameter DN 15 to 200

pH measurement

Measuring range Resolution / Accuracy

0...14 pH0.01 pH / ± 0.02 pH, after proper electrode calibration

Minimal range 0.5 pH unit (i.e. 6.7 to 7.2 corresponding to 4-20 mA)

Temperature measurement

Measuring range Resolution / Accuracy Temperature compensation

-30 to +140°C (-22 to 266°F)

0.1°C (0.18°F) / ± 1°C (1.8°F)

automatic (integrated Pt1000) or manual (user programmed) - reference temperature 25°C (77°F)

Medium temperature max. with fitting in PVC: 50°C (122°F), - PP: 80°C (176°F) PVDF, stainless steel, brass: 100°C (212°F)

Medium pressure max. PN6 (see pressure / temperature chart)

Electrical data

Power supply 15-30 V DC, filtered and regulated

Current consumption without

sensor

≤ 60 mA at 30 V DC; 110 mA at 15 V DC (with relays)

≤ 40 mA at 30 V DC; 70 mA at 15 V DC (without relay)

Output

Relay alarm Pulse Relay pulse Transistor pulse

4-20 mA programmable, proportional to pH or T °Cmax. loop impedance: 1200 Ω at 30 V DC;900 Ω at 24 V DC; 450 Ω at 15 V DC1 relay, freely programmable, 3A, 230 V AC 2 frequency and time duration adjustable outputs 2 relays, freely programmable, 3A, 230 V AC; F < 1 Hz2 Polarized, potential free, 5...30 V DC; 100 mA, protected, line drop at 100 mA: 1.5 VDC - for status and alarm message; F < 17 Hz

Control mode P, PI or PID programmable

Environment

Ambient temperature

Operation Storage

0 to +60°C (32 to 140°F)

4 to 30°C (39.2 to 86°F) (limited through the electrode)

Standard

Protection class IP65 with cable gland mounted and tightened or with obturator locked if not used.

Specific technical data: Electrode UNITRODE PLUS pH

Fluid - Clean (drinking water, aquarium, swimming pool...)

- Contamined (effluent rinse water, cooling tower water, brackish

water, RO pretreatment, electroplating,, cosmetics...)

- with low conductivity (pure and rainwater...)

- containing sulfides/proteins (tannery, animal breeding, effluent,

foodstuffs, cosmetics, biotechnology...)

Measuring range 0...14 pH

Minimal conductivity 2 μS/cm (200 kΩ.cm)

Housing glass shaft

Medium temperature with fitting in PVC: 50°C (122°F) - PP: 80°C (176°F)-PVDF: 100°C (212°F) - stainless steel, brass: 130°C(266°F)

Medium pressure 0 - 6 bar

Max. pressure at max. temperature 6 bar at 130°C (266°F)

Diaphragm Two clogging free “Single pores™”

Reference electrolyte polymer


p. 4/12

Installation

The 8205 pH controller has to be installed with a maximum angle of 75 degrees

from verticle into any Bürkert INSERTION fitting (S020).

Select and install the required fitting onto the pipe, according to specific require-

ments of the sensor and fitting material (temperature and pressure). Then, cautiously

install the unit on the fitting, and tighten with the nut.

In order to get a reliable measurement, air bubbles must be avoided, and the

mounting location must ensure that the electrode is continuously and completely

immersed in the flow stream. When kept in inventory or the system is not in use,

care must also be taken to ensure the electrode is in fluid and wet at all times; this

prevents the electrode from drying out which will result in probe failure.

The controller must be protected from constant heat radiation and other environ-

mental influences, such as direct exposure to sunlight.

An industrial immersion kit allows installation of this controller into tanks or con-

tainers. The following lengths are available: 500, 1000, 1500, 2000 mm. Special

lengths on request.

Dimensions [mm]

Compact version Immersion kit

* using fusion spigot (Item no. 418652, 418660 or 418644 in PP, PVDF or PE) for orifice DN 65-100

Orifice H

T-Fitting Plastic spigot* St. St. spigot

15 187

20 185

25 185

32 188

40 192

50 198 193

65 198 206 199

80 212 204

100 219 214

110

125 225

150 236

180

200 257

L

500

1000

1500

2000


p. 5/12

Remote pH controller Type 8205 (for connection to Bürkert sensor Type 8200)

Panel-mounted version Wall-mounted version

Dimensions [mm]

Technical specifications 115/230 VAC

Voltage

avail-

able

in the

device

27 V DC regulated, max. current: 250 mA integrated protection: fuse 250 mA temporised power: 6 VA

The remote pH controller Type 8205 is avail-

able in 2 versions:

- Panel-mounted pH controller

- Wall-mounted pH controller

A separate compact pH sensor 8200 from

Bürkert must be associated with this remote

pH controller. This sensor Type 8200 must be

ordered separately.

General data

Compatibility Bürkert pH sensor Type 8200

Materials

Housing, cover Front panel foil Screws Cable glands

PC (panel-mounted version); ABS (wall-mounted version)

Polyester Stainless steelPA

Electrical connection Terminals (panel-mounted version) orterminals via 5 cable glands M16 x 1.5 (wall-mounted version)

Electrical data

Power supply

Panel-mounted version Wall-mounted version

15-30 V DC, filtered and regulated15-30 V DC, filtered and regulated or 115/230 V AC - 50/60 Hz (see technical specifications 115/230 VAC)

Current consumption with sensor ≤ 60 mA at 30 V DC; 110 mA at 15 V DC (with relays)

≤ 40 mA at 30 V DC; 70 mA at 15 V DC (without relay)

Sensor input Analog signal from pH electrode and Pt1000

Cable length max. 10 m (distance between sensor and controller)

Output

Relay alarm Pulse Relay pulse Transistor pulse

4-20 mA programmable, proportional to pH or T°Cmax. loop impedance: 1200 Ω at 30 V DC; 900 Ω at 24 V DC; 450 Ω at 15 V DC1 relay, freely programmable, 3A, 230 V AC 2 frequency and time duration adjustable outputs 2 relays, freely programmable, 3A, 230 V AC; F < 1 Hz2 Polarized, potential free, 5...30 V DC; 100 mA, protected, line drop at 100 mA: 1.5 VDC - for status and alarm message; F < 17 Hz

Control mode P, PI or PID programmable

Environment

Ambient temperature

Operation and storage 0 to +60°C (32 to 140°F)

Standard

Protection class IP65 (panel-mounted and wall-mounted version)

IP20 (panel-mounted version, inside the cabinet)


p. 6/12

A wide range of pH holders enable pH mea-

surement in various applications.

A complete pH sensor system consists of (see

installation example of Type 8200):

A. complete armature with seals installed on:

1. Bürkert Fitting (G2“ connection)

2. G1“ connection

3. Clamp connection

4. Sanitary connection (according to DIN11851)

B. pH-electrode

C. Pt1000 (option)

D. pH+Pt1000 shielded cable (2, 5 or 10 m)

Remote pH sensor Type 8200 (for connection to Bürkert controller Type 8205)

Specific technical data

Electrode LOGOTRODE pH 120 UNITRODE PLUS pH

120

CERATRODE pH 120 PLASTRODE pH 120

Fluids - Clean (drinking water,

aquarium, swimming-pool)

- Contamined (effluent

rinse water, cooling water,

electro-

plating, paints, cosmetics...)

- containing sulfides/proteins (tannery, animal

breeding, effluent, foodstuffs,

cosmetics, biotechnology)

- High pressure, high flow rate applications

- Economical probe for drinking water, aquarium, swimming-pool...

Measuring range 2 ... 14 pH 0 ... 14 pH 0 ... 14 pH 0 ... 14 pH

Medium pressure 0 - 6 bar1) (0 to 87.06 PSI) 0 - 6 bar1) (0 to 87.06 PSI) 0 - 16 bar1) (0 to 232.16 PSI) 0 - 6 bar1) (0 to 87.06 PSI)

Medium temperature -10 to +60°C (14 to 140°F) 0 to +130°C (32 to 266°F) 0 to +130°C (32 to 266°F) -10 to +40°C (14 to 104°F)

Ambient temperature Operation Storage

0 to +60°C (32 to 140°F)

4 to +30°C (39.2 to 86°F)

0 to +60°C (32 to 140°F)

4 to +30°C (39.2 to 86°F)

0 to +60°C (32 to 140°F)

4 to +30°C (39.2 to 86°F)

0 to +60°C (32 to 140°F)

4 to +30°C (39.2 to 86°F)

Minimal conductivity 2 μS/cm 2 μS/cm 50 μS/cm 2 μS/cm

Max. pressure at max temperature 6 bar (87.06 PSI) 6 bar (87.06 PSI) 6 bar (87.06 PSI) 6 bar (87.06 PSI)

Number of diaphragms 1 2 3 1

Diaphragm “single pore™” “single pore™” HP ceramics “single pore™”

Reference electrolyte polymer polymer gel polymer1) only 0-3 bar (0 to 43.53 PSI) if used with holder Type 8200 with Clamp or sanitary connection and with protection tube

General data

Compatibility with all fittings S020 (see corresp. datasheet)

Materials Fitting

Sensor holder G2” connection G1” connection Sanitary Clamp Pt1000 Seal

Brass, Stainless steel 1.4404/316L,PVC, PP or PVDF

Stainless steel, PVC, PP, PVDFPVCStainlesss steel (316Ti / 1.4571), DN40, 50Stainless steel (316L / DIN 1.4404)

Stainless steel 1.4571 (316 Ti)

FKM (EPDM option)

Electrode Type UNITRODE PLUS pH 120Type LOGOTRODE pH 120Type CERATRODE pH 120Type PLASTRODE pH 120

Electrical connection Coaxial shielded cables with connector for pH and4-wire cable for Pt1000

Electrical data

Output Analog signal, to be connected to remote pH transmitter Type 8205

Complete device data (fitting + sensor)

Pipe diameter DN 15 to 200

Measuring range 0...14 pH

Medium temperature max.* with fitting inPVC: 50°C (122°F) - PP: 80°C (176 °F) -PVDF: 100°C (212°F) - stainless steel, brass: 130°C (266°F)

Temperature compensation automatic (integrated Pt1000) or manual compensation - ref-erence temperature 25°C (77°F)

* If the specific max. medium temperature for the used probe is lower or upper than the max. temperature given in the above technical data chart, please take the lowest temperature as max.


p. 7/12

Installation of Type 8200

Holder for Type S020 Holder for connection 1”

A. complete armature with seals

installed on:

1. Bürkert Fitting S020

(G2“ connection)

2. G1“ connection

3. Clamp connection

4. Sanitary connection

(according to DIN11851)

B. pH-electrode

C. Pt1000 (option)

D. pH + Pt1000 shielded cable

(2, 5 or 10 m) (option)

E. PVC adapter piece

1) Holder long version

2) Holder short version

* With standard PVC connection.

Not in Bürkert program

A

BC

D

1

A1)

BC

D

2

B

2

A2)

C

E*

The 8200 pH sensor has to be installed in a vertical position with a maximum angle of 75 degrees from verticle in a horizontal pipe.. Select and install the required

fitting onto the pipe, according to specific requirements of the sensor and fitting material (temperature and pressure). After having

connected the pH sensor to the Type 8205 controller and having calibrated the unit, cautiously install the complete pH sensor

on the fitting. In order to get reliable measurement, air bubbles must be avoid, and the mounting location must ensure that the

electrode is continuously and completely immersed in the flow stream. The electrode must continuously be immersed into the

measuring fluid in order to protect it from drying out. The sensor must be protected from constant heat radiation and other envi-

ronmental influences, such as direct exposure to sunlight.

pH holder Type 8200 for installation on Bürkert Fitting S020 (G2“ connection) - PVC, PP, PVDF, Stainless steel

Dimensions [mm]


p. 8/12

Dimensions [mm]

pH holder Type 8200 for G 1“ connection - PVC

short version long version

pH holder Type 8200 for Clamp connection - Stainless steel 316L

pH holder Type 8200 for sanitary connection (according to DIN 11851) - Stainless steel 316Ti

Ø A Ø B

1” 1/2 42.4 50.5

2” 53 64

DN Ø C Ø D Ø E

40 48 56 10

50 61 68.5 11


p. 9/12

Combining the pH controller Type 8205 with fittings Type S020

Availab

le f

itti

ng

DN

T-fitting S020

Welding tab S020

Fusion spigot S020

pH measurement

8205 compact

pH measurement

8200/8205 remote version

Note A: Use only with analyse plastic fitting version with true union acc. to DIN 8063 (PVC), to DIN 16962 (PP) or to ISO 10931 (PVDF).

Measuring chamber for pH controller Type 8205

The specially designed measuring chamber

provides for easy installation of all 8205 pH-

controllers or 8200 sensors (for S020) in all pipe

systems, either directly in the main stream or in

a by-pass line. The chamber also ensures the

electrode is always wet and isolates it easily

from the main stream for calibration purposes.

DN200

DN200

DN65DN 15

DN50

Note A

DN100DN65

DN15

DN200DN 15

DN32


p. 10/12

Ordering chart for compact controller Type 8205

A compact pH controller Type 8205 consists of:

- an INSERTION pH controller 8205

- an INSERTION fitting Type S020 (DN15 - DN 200) (Refer to corresponding datasheet - has to be ordered separately)

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Compact 15-30 V DC 4-20 mA 2 relays UNITRODE pH 2 cable glands 426 430

1 alarm relay 2 transistors UNITRODE pH 2 cable glands 426 450

1) FKM gasket in standard; 1 Kit including a black EPDM gasket for the sensor, an obturator for an M20 x 1.5 cable gland, a 2 x 6 mm multiway seal and a mounting instruction sheet is supplied with each controller.

Ordering chart for accessories for compact pH controller Type 8205D

escri

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Set with 2 cable glands M20 x 1.5 + 2 neoprene flat seals for cable gland or plug + 2 screw-plugs M20 x 1.5 + 2 multiway seals 2 x 6 mm

449 755

Set with 2 reductions M20 x 1.5 /NPT1/2” + 2 neoprene flat seals for cable gland or plug + 2 screw-plugs M20 x 1.5 551 782

Set with 1 stopper for unused cable gland M20 x 1.5 + 1 multiway seal 2 x 6 mm for cable gland + 1 black EPDM gasket for the sensor + 1 mounting instruction sheet

551 775

Ring 619 205

PC - nut 619 204

Set with 1 green FKM + 1 black EPDM gasket 552 111

Electrode holder with stainless steel Pt1000 418 889

Electrode holder with titanium Pt1000 418 890

pH electrode 0...130°C, 0...6 bar - UNITRODE PLUS pH 552 041

Compact pH controller for tank installation consists of:

- an INSERTION pH controller

- an immersion Kit consisting of : - an immersion fitting (has to be ordered separately)

- an extension cable for immersion fitting (has to be ordered separately)

- a fixing kit: flange DN65 with stainless steel screws (has to be ordered separately)

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Immersion fitting - PP - 0.5 m 419 567




Extension cable for immersion fitting - PP - 0.5 m 416 632




Fixing kit - flange DN65 with stainless steel screws 413 615


p. 11/12

Ordering chart - pH holder for remote controller Type 8205

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pH-holder 8200 for installation on Bürkert fitting S020 (G2” connection)

standard PVC Yes Yes 429 228

PP Yes Yes 429 229

PVDF Yes Yes 429 230

Stainless steel Yes Yes 429 231

pH-holder 8200 for G1” connection thread short PVC Yes No 429 221

long PVC Yes No 429 223

pH-holder 8200 for Clamp 1” 1/2 - (dia. 50.5 mm) standard Stainless steel 316L Yes Yes 429 235

pH-holder 8200 for Clamp 2” - (dia. 64 mm) standard Stainless steel 316L Yes No 429 239

pH-holder 8200 for sanitary connection DN40 - (DIN 11851) standard Stainless steel 316Ti Yes No 429 247

pH-holder 8200 for sanitary connection DN50 - (DIN 11851) standard Stainless steel 316Ti Yes No 429 255

Ordering chart for remote controller Type 8205

A complete remote controller Type 8205 consists of:

- a pH-controller Type 8205 (wall-mounted or panel-mounted version) - a pH- holder Type 8200

- a pH-electrode Type 8200 (see accessories) - a shielded connection cable (pH and Pt1000 signal) (see Accessories)

- a Pt1000 temperature sensor (see Accessories) - an INSERTION fitting S020 (DN15 - DN 200)

(Refer to corresponding datasheet - has to be ordered separately)

pH controller Type 8205 panel or wall-mounted version

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Panel-mounted 15-30 V DC 4-20 mA1 alarm relay

2 relays 8200 Terminal strip 427 939

2 transistors 8200 Terminal strip 427 941

Wall-mounted 15-30 V DC 4-20 mA1 alarm relay

2 relays 8200 Cable glands 427 946

2 transistors 8200 Cable glands 427 948

115-230 V AC 4-20 mA1 alarm relay

2 relays 8200 Cable glands 427 951

2 transistors 8200 Cable glands 427 953

Ordering chart for accessories for remote pH controller Type 8205, pH sensor Type 8200

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pH electrode -10... 60°C, 0... 6 bar, pH 2... 14 - LOGOTRODE pH 120 mm 427 114

pH electrode 0... 130°C, 0... 16 bar, pH 0... 14 - CERATRODE pH 120 mm 418 319

pH electrode 0... 130°C, 0... 6 bar, pH 0... 14 - UNITRODE PLUS pH 120 mm 560 376

pH electrode -10... 40°C, 0... 6 bar, pH 0... 14 - PLASTRODE pH 120 mm 560 377

Temperature probe -Stainless steel sensor Pt1000 427 023

Temperature probe -Titanium sensor Pt1000 560 317

pH coaxial cable with standard electrode plug - 2 m (for connection between 8205 transmitter and 8200 sensor) 427 024



Pt1000 4-wire cable with M8 connector - 2 m (for connection between 8205 transmitter and 8200 sensor) 427 110



FKM gasket for all holders Type 8200 429 264

EPDM gasket for all holders Type 8200 429 265


p. 12/12

Interconnection possibilities with other Bürkert devices

Ordering chart for accessories for all version of Type 8205, Type 8200

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Storage solution for electrodes (KCl 3M), 500 ml 418 557

Cleaning solution set for electrodes, 3 x 500 ml 560 949

Buffer solution, 500 ml, pH = 4 418 540



Factory 2-point pH calibration certificate 550 673

Measuring chamber stainless steel 316L (1.4404)1) with G 1/2” connection thread(only for 8205 compact version or 8200 holder to install on S020 fitting)

553 611

1) other materials on request

Note:

Compact pH controller 8205, remote (Wall-mounted or Panel-mounted versions) pH electronic module 8205, pH holder 8200, pH electrode, Pt1000 sensor,

connection cable, INSERTION fitting S020, have to be ordered separately.

Type S020 -

INSERTION Fitting

(see corresp. datasheet)

PLC -

Type 0127 -

Rocker

solenoid valveType 2030 -

Dosing pump

Type 8205 -

Wall-mounted

or panel-mounted

Type 8205 -

Compact

pH controller

Measuring

chamber

To find your nearest Bürkert facility, click on the orange box www.burkert .com

In case of special application conditions,please consult for advice.

Subject to alteration.© Christian Bürkert GmbH & Co. KG 0812/7_EU-en_00891801

Type 8200 -

pH sensor

Type 8200 -

pH sensor

Digital pH controller - Burkert...

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