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DULCOTEST pH sensors

Graduated pH measuring ranges 0 – 14

pH measurements with DULCOTEST sensors: Precise, reliable and application-adapted measured values in real-time. Control, regulate and monitor chemical processes with the aid of precise measured values.

Product description

Reliable online measurement of pH values – with DULCOTEST sensors

The online measurement and adjustment of pH values must be as accurate, fast and reliable as possible and provide good availability of the measured values, be it for the monitoring, control or regulation of chemical processes.

Our product line of DULCOTEST pH sensors provides a wide range of pH sensors for different measuring tasks.

Our pH sensors are manufactured to very strict quality controls (e.g. in accordance with RoHS guidelines). Routine steps are automated but critical steps are carried out manually under expert supervision. In this way we achieve the best reproducible quality and cost reduction.

Your benefits

  • Precise and reliable pH measurement enables efficient processes and excellent process reliability
  • The wide choice of sensor types with different constructions makes them reliable components in many applications
  • A long service life is achieved through the use of the best quality materials for the glass and diaphragms, a stable reference system and optimised production. This minimises both downtime and maintenance
  • With short storage times and fast delivery, your pH sensors can be up and running very quickly and you can make maximum use of their service life (all glass sensors start to age as soon as they leave production)
  • Wide range of special versions for fitting length, cable length and plugs for made-to-measure connection to your process
  • Unique label for OEM partners
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Field of application

The following list of applications are general examples of generally suitable applications for this product. Please contact your local sales representative to talk about the applicable use of this product in your specific case / environment.

  • Chemical processes
  • Chemically contaminated water
  • Swimming pool water, potable water
  • Process water
  • Cooling water, wastewater
  • Seawater
  • Suspensions, sludge, emulsions
  • Exhaust air scrubber, semiconductor industry, electroplating

    Technical Details

    • Selection of sensor type according to the application
    • The insertion angle must be > 15° from the horizontal (except with PHEK-L: horizontal to vertical)
    • Maximum flow < 0.8 m/s
    • With cable lengths > 10 m, use the 4-20 mA transducer type PHV1
    • Calibration using quality buffer solutions

    pH Sensor PHES 112 SE

    pH sensor optimised for use in potable water treatment, swimming pools/hot tubs at up to 60 °C/3 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for use in swimming pools and for potable water
    • Ceramic diaphragm with special material, optimised size and optimised pore diameter
    • Long service life due to reduced diffusion ('bleeding') of the electrolyte
    • Long service life due to the material, which is inert to aggressive disinfectants
    • Stable reference system
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…60 °C

    Max. pressure

    3.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    Ceramic

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    All DULCOMETER controllers

    Typical applications

    Swimming pools, whirlpools, potable water

    Resistance to

    Disinfectant

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Installation length

    Order no.

    PHES-112-SE SLg100

    100 ±3 mm

    1051745

    PHES 112 SE

    120 ±3 mm

    150702

    PHES-112-SE SLg225

    225 ±3 mm

    150092

    pH Sensor PHES 112 SE 3D

    pH sensor optimised for use in potable water treatment, swimming pools/hot tubs and at low electrolytic conductivities of up to 60 °C/3 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for use in swimming pools
    • Ceramic diaphragm with special material, optimised size and optimised pore diameter
    • Three ceramic diaphragms optimised for low electrolytic conductivities
    • Long service life due to reduced diffusion ('bleeding') of the electrolyte
    • Long service life due to the material, which is inert to aggressive disinfectants
    • Stable reference system
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…60 °C

    Max. pressure

    3.0 bar

    Min. conductivity

    50 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    3 ceramic diaphragms

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    Low conductivity water.

    Resistance to

    Disinfectant

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Installation length

    Order no.

    PHES 112 SE 3D

    120 ±3 mm

    1045759

    pH Sensor PHEP 112 SE

    pH sensor optimised for use with clear process water and conditions of up to 80 °C/6 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for exacting process requirements
    • Ceramic diaphragm with special material, optimised size and optimised pore diameter
    • Long service life due to reduced diffusion ('bleeding') of the electrolyte
    • Long service life due to the material, which is inert to aggressive disinfectants
    • Stable reference system for high pressure/temperature requirements
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    6.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    Ceramic

    Sensor shaft

    Glass

    Shaft diameter

    15 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    All DULCOMETER controllers

    Typical applications

    Swimming pools during pressurisation for higher temperatures and pressures, potable and industrial water, electroplating, chemical industries.

    Resistance to

    Disinfectant

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Installation length

    Order no.

    PHEP 112 SE

    120 ±3 mm

    150041

    PHEP 112 SE SLg100

    100 ±3 mm

    150951

    pH Sensor PHEP-H 314 SE

    pH sensor optimised for use with clear process water, specifically for alkaline process solutions at high temperatures of up to 100 °C

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for exacting process requirements
    • Optimised pH-sensitive glass for high alkali content and high temperatures
    • Long service life / excellent precision: Measurement at a high pH value of up to 14
    • Long service life: at high temperatures of up to 100 °C
    • Stable reference system for high pressure/temperature requirements
    • Twist protection for the sensor cable connected. This means that the cables can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    3…14

    Temperature

    0…100 °C

    Max. pressure

    6.0 bar (25 °C), 3.0 bar (100 °C)

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride with KCI reservoir

    Diaphragm

    Ceramic

    Sensor shaft

    Glass

    Shaft diameter

    15 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    All DULCOMETER controllers

    Typical applications

    Monitoring or control of chemical processes with neutral to highly-alkaline media and temperatures up to 100 °C.

    Resistance to

    Disinfectant, high alkalinity

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, highly alkaline tempered glass, ceramic diaphragm, gel electrolyte, separate temperature measurement for temperature compensation needed

    Order no.

    PHEP-H 314 SE

    1024882

    pH Sensor PHEI 112 SE

    Reliable online measurement of pH values in industrial wastewater/water - with DULCOTEST sensors

    Your Benefits

    • Solid high-grade plastic housing with integrated process connection for direct installation in the process with ½" and ¾" NPT thread
    • Large dirt-repellent Teflon diaphragm protects against unwanted blocking of the reference
    • Double junction reference system for stability with chemically polluted water
    • Large electrolyte reservoir for long service lives

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    6.0 bar

    Min. conductivity

    50 µS/cm

    Electrolyte

    Gel containing potassium chloride with a large KCI reservoir of gel

    Diaphragm

    1 x PTFE ring diaphragm and 1x ceramic diaphragm

    Sensor shaft

    Plastic

    Shaft diameter

    17 ±0.2 mm (below the ½” NPT thread), 22 ±0.2 mm (below the ¾” thread)

    Installation length

    20 ±0.2 mm (from the lower end of the ½” thread), 60 ±0.2 mm (from the lower end of the ¾” thread)

    Fitting position

    Vertical up to +25°

    Thread

    ½” and ¾” NPT thread

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    Municipal and industrial wastewater Cooling water, process water, water in the chemical industry and paper making, generally for water with a solid matter fraction.

    Resistance to

    Disinfectant, solids content (turbid water), water-soluble chemicals

    Measuring principle, technology

    direct potentiometric measurement, 2 probes, double junction, gel electrolyte, large Teflon diaphragm, separate temperature measurement for temperature compensation needed

    Order no.

    PHEI 112 SE

    1076610

    pH Sensor PHER 112 SE

    pH sensor optimised for use in contaminated water containing solids and for low conductivity of > 50 μS/cm at up to 80 °C/6 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • The large dirt-repellent Teflon® diaphragm prevents the reference system from becoming blocked up
    • Long service life when solids are present
    • High-viscosity electrolyte combined with a salt reservoir prevents the electrolyte from 'bleeding'
    • Long service life without drifts when there is clear water with low conductivity
    • Twist protection for the sensor cable connected. This means that the cables can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    6.0 bar

    Min. conductivity

    50 µS/cm

    Electrolyte

    Gel containing potassium chloride with KCI reservoir

    Diaphragm

    PTFE ring diaphragm

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    All DULCOMETER controllers

    Typical applications

    Municipal and industrial wastewater, cooling water, process water, water in the chemical industry and paper making, generally water with solid fractions.

    Resistance to

    Disinfectant, solids content (turbid types of water)

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, Teflon ring diaphragm, polymer electrolyte, separate temperature measurement for temperature compensation needed

    Order no.

    PHER 112 SE

    1001586

    PH sensor PHER-DJ 112 SE 

    pH sensor with double diaphragm (double junction) optimised for use in contaminated water containing solids and for low conductivity of > 10 μS/cm at up to 80 °C/6 bar.

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • The large dirt-repellent Teflon® diaphragm prevents the reference system from becoming blocked up
    • Long service life when solids are present
    • High-viscosity electrolyte combined with a salt reservoir prevents the electrolyte from 'bleeding'
    • Long service life without drifts when there is clear water with low conductivity
    • Twist protection for the sensor cable connected. This means that the cables can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    6.0 bar

    Min. conductivity

    10 µS/cm

    Electrolyte

    Gel containing potassium chloride with KCI reservoir

    Diaphragm

    2x PTFE ring diaphragm

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    All DULCOMETER controllers

    Typical applications

    Municipal and industrial wastewater, cooling water, process water, water in the chemical industry and paper making, generally water with solid fractions.

    Resistance to

    Disinfectant, solids content (turbid types of water)

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, Teflon ring diaphragm, polymer electrolyte, separate temperature measurement for temperature compensation needed

    Installation length

    Order no.

    PHER-DJ 112 SE

    120 ±3 mm

    1108991

    pH Sensor PHEX 112 SE

    pH sensor optimised for use with contaminated water with a high solids content at 6 bar/100 °C or 16 bar/25 °C

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for extremely high solids content
    • The solid electrolyte makes the diaphragm redundant and prevents the reference system from becoming blocked up
    • Long service life when sludge is present due to lack of a diaphragm
    • Long service life as the solid electrolyte prevents the electrolyte from 'bleeding'
    • Stable reference system
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…100 °C

    Max. pressure

    16.0 bar (25 °C), 6.0 bar (100 °C)

    Min. conductivity

    500 µS/cm

    Electrolyte

    Polymer containing potassium chloride (solid)

    Diaphragm

    Circular gap diaphragm (solid electrolyte)

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    Wastewater, industrial water, process chemistry, emulsions, suspensions, protein-containing media, in general for water with a high solid fraction, not suitable for use in clear water. not suitable for media with oxidation agents.

    Resistance to

    Solids content (turbid types of water), sludge, emulsions

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, no diaphragm, polymer electrolyte, separate temperature measurement for temperature compensation needed

    Installation length

    Order no.

    PHEX 112 SE

    120 ±3 mm

    305096

    PHEX 112 SE SLg225

    225 ±3 mm

    150061

    pH Sensor PHED 112 SE

    pH sensor optimised for use with chemically contaminated but clear water at up to 80 °C/8 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for use in chemically contaminated but clear water
    • Double junction: two coupled ceramic diaphragms protect the reference system
    • Long service life when chemical pollutants are present
    • Special construction permits a maximum pressure of 8 bar
    • Twist protection for the sensor cable connected. This means that the cables can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    8.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    Double junction

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    Chemically loaded wastewater, industrial water, cooling water.

    Resistance to

    Disinfectants, water-soluble chemicals

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, double junction, gel electrolyte, separate temperature measurement for temperature compensation needed

    Order no.

    PHED 112 SE

    741036

    pH Sensor PHEF 012 SE

    pH sensor optimised for use with acidic water containing fluoride and abrasive water containing solids at up to 50 °C/7 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Optimised pH glass for use in the presence of glass-corroding hydrofluoric acid (HF). HF is formed primarily in the presence of fluoride (F-) at a pH of < 4. Glass corrosion is promoted by a constant concentration of fluoride, a falling pH value and a rising temperature. The glass composition and structure of the PHEF type reduce the release of SiF4. Extended service life in the presence of fluoride (F-) at a pH of < 7
    • The flat shape of the glass diaphragm and large ring diaphragm facilitate use in contaminated water, which also contains abrasive solids

    pH-range

    0…12

    Temperature

    0…50 °C

    Max. pressure

    7.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    HDPE ring diaphragm, flat (Double Junction)

    Sensor shaft

    Epoxy

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    A significantly longer service life can be achieved compared with standard pH sensors in media containing hydrofluoric acid, e.g. wastewater from the semiconductor industry or electroplating applications and air scrubbers.

    Resistance to

    Disinfectant, solids content (turbid types of water), hydrofluoric acid (HF), abrasive particles

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, PE ring diaphragm, HF-compatible flat glass diaphragm, gel electrolyte, separate temperature measurement for temperature compensation needed

    Order no.

    PHEF 012 SE

    1010511

    pH sensor PHEF-DJ 112 SE

    pH sensor with double diaphragm (double junction) optimised for acid water containing fluoride at up to 60 °C/8 bar

    Your Benefits

    • Electrochemical combination probe: pH and reference electrode integrated
    • Precise and reliable pH measurement in water containing fluoride with low pH enables efficient processes and excellent process reliability
    • A special pH glass and dirt-repellent double junction can extend the service life of the sensor and thereby minimise downtimes as well as maintenance requirements
    • The combination of hydrofluoric acid-resistant glass and PTFE double junction makes the sensor suited to gas scrubbing applications where fluoride and dirt may be encountered at the same time
    • Twist protection for the sensor cable connection ensures that the cable can remain connected during installation and removal of the sensor, reducing moisture on the plug-in contacts

    pH-range

    1…12

    Temperature

    0…60 °C

    Max. pressure

    6.0 bar

    Min. conductivity

    10 µS/cm

    Electrolyte

    Gel containing potassium chloride with KCI reservoir

    Diaphragm

    2 x PTFE ring diaphragm, double junction

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    A significantly longer service life can be achieved compared with standard pH sensors in media containing hydrofluoric acid, e.g. wastewater from the semiconductor industry or electroplating applications and air scrubbers. Low conductivity water.

    Resistance to

    Disinfectant, dirt

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, PTFE diaphragm, separate temperature measurement needed for temperature compensation

    Order no.

    PHEF-DJ 112 SE

    1114185

    pH Sensor PHEN 112 SE

    Refillable pH sensor optimised for use with chemically contaminated water at up to 80 °C/without excess pressure

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Renewable liquid electrolyte by continuous replenishment from an electrolyte bottle installed above the electrode
    • 1 ceramic diaphragm made of special material and with an optimised size / with optimised pore diameter
    • Twist protection for the sensor cable connected. This means that the cables can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Long service life in the presence of chemicals dissolved in the water, which could contaminate the reference system
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    Operation at atmospheric pressure

    Min. conductivity

    150 µS/cm

    Electrolyte

    KCL electrolyte, refillable

    Diaphragm

    Ceramic

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    Wastewater, cooling water, chemically contaminated water.

    Resistance to

    Disinfectant, only for clear types of water

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, liquid electrolyte, 1 ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Order no.

    PHEN 112 SE

    305090

    Delivered without PE storage tank and hose

    Order no.

    PE storage tank with connectors and tube

    305058

    For the PE storage tank, we recommend fitting approx. 0.5 - 1 m above the level of the measurement medium.

    Capacity

    Order no.

    KCl solution, 3 molar

    250 ml

    791440

    KCl solution, 3 molar

    1,000 ml

    791441

    pH Sensor PHEN 112 SE 3D

    Refillable pH sensor optimised for use in contaminated water containing solids and water with a low conductivity of > 50 μS/cm at up to 80 °C/without overpressure

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Renewable liquid electrolyte through continuous replenishment from an electrolyte bottle installed above the electrode
    • 3 ceramic diaphragms made of special material, with optimised size and optimised pore diameter
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Long service life in water with low conductivity of > 50 µS/cm and where solids are present
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    Operation at atmospheric pressure

    Min. conductivity

    50 µS/cm

    Electrolyte

    KCL electrolyte, refillable

    Diaphragm

    3 ceramic diaphragms

    Sensor shaft

    Glass

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    All DULCOMETER controllers

    Typical applications

    Wastewater, water with low conductivity, e.g. from reverse osmosis.

    Resistance to

    Disinfectant, solids content (turbid types of water)

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, liquid electrolyte, 1 ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Order no.

    PHEN 112 SE 3D

    150078

    pH Sensor PHEK 112 S

    pH sensor for use with manual measuring instruments, with plastic shaft, optimised for use in potable water treatment, swimming pools/hot tubs at up to 80 °C/3 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for use in swimming pools and for potable water
    • Ceramic diaphragm with special material, optimised size and optimised pore diameter
    • With plastic shaft to prevent glass breakage
    • Mechanical protection of the glass diaphragm
    • Long service life due to reduced diffusion ('bleeding') of the electrolyte
    • Long service life due to the material, which is inert to aggressive disinfectants
    • Stable reference system
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…60 °C

    Max. pressure

    3.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    Ceramic

    Sensor shaft

    Polycarbonate

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    none

    Electrical Connection

    SN6 plug-in head

    Enclosure rating

    IP 65

    Process integration

    Immersion by tripod or manually

    Controllers

    all DULCOMETER controllers

    Typical applications

    Hand-held measurement in swimming pools, potable water.

    Resistance to

    Disinfectant

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Order no.

    PHEK 112 S

    305051

    pH Sensor PHEK 112 SE

    pH sensor with plastic shaft, optimised for use in potable water treatment, swimming pools/hot tubs at up to 60 °C/3 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for use in swimming pools and for potable water
    • Ceramic diaphragm with special material, optimised size and optimised pore diameter
    • With plastic shaft to prevent glass breakage
    • Mechanical protection of the glass diaphragm
    • Long service life due to reduced diffusion ('bleeding') of the electrolyte
    • Long service life due to the material, which is inert to aggressive disinfectants
    • Stable reference system
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…60 °C

    Max. pressure

    3.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    Ceramic

    Sensor shaft

    Polycarbonate

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    Swimming pool, potable water, aquariums

    Resistance to

    Disinfectant

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Order no.

    PHEK 112 SE

    1028457

    pH Sensor PHEK-L 112 SE

    pH sensor with plastic shaft, optimised for use in potable water treatment, swimming pools/hot tubs, horizontal installation possible, at up to 60 °C/3 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • With plastic shaft to prevent glass breakage
    • Horizontal (level) installation possible (90° angle) (usually limited to 0 - 75° angle)
    • Diaphragm and reference system optimised for use in swimming pools and for potable water
    • Ceramic diaphragm with special material and optimised size / optimised pore diameter
    • Long service life due to reduced diffusion ('bleeding') of the electrolyte
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Long service life due to the material, which is inert to aggressive disinfectants
    • Stable reference system

    pH-range

    1…12

    Temperature

    0…60 °C

    Max. pressure

    3.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    Ceramic

    Sensor shaft

    Polycarbonate

    Shaft diameter

    12 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical to horizontal

    Thread

    PG 13.5

    Electrical Connection

    SN6 plug-in head, rotatable with a ProMinent cable

    Enclosure rating

    IP 65

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    all DULCOMETER controllers

    Typical applications

    Swimming pools, potable water, aquaria. Horizontal installation possible.

    Resistance to

    Disinfectant

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, separate temperature measurement for temperature compensation needed

    Order no.

    PHEK-L 112 SE

    1034918

    pH Sensor PHEPT 112 VE

    pH sensor with integral temperature measurement, optimised for use with clear process water and changing process temperature of up to 80 °C/6 bar

    Your Benefits

    • Electrochemical combination electrode: pH and reference electrode integrated
    • Diaphragm and reference system optimised for exacting process requirements
    • Ceramic diaphragm with special material, optimised size and optimised pore diameter
    • Long service life due to reduced diffusion ("bleeding") of the electrolyte
    • Long service life due to the material, which is inert to aggressive chemicals
    • Stable reference system for high pressure/temperature requirements
    • Integrated Pt 100 temperature sensor for temperature compensation of the pH measurement in higher-order measuring instruments eliminates the need for an additional sensor housing and external temperature sensor
    • VARIO Pin plug-in head with IP 67 specification
    • Twist protection for the sensor cable connected. This means that the cable can remain connected during installation and dismantling of the sensor, avoiding troublesome moisture on the connector contacts
    • Lead-free glass for advanced and environmentally-friendly production, use and disposal (RoHS-compliant)

    pH-range

    1…12

    Temperature

    0…80 °C

    Max. pressure

    6.0 bar

    Min. conductivity

    150 µS/cm

    Electrolyte

    Gel containing potassium chloride

    Diaphragm

    Ceramic

    Sensor shaft

    Glass

    Shaft diameter

    15 mm

    Installation length

    120 ±3 mm

    Fitting position

    Vertical up to +25°

    Thread

    PG 13.5

    Electrical Connection

    VARIO Pin plug-in head

    Enclosure rating

    IP 67

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

    Controllers

    All DULCOMETER controllers (with the exception of DCCa pH)

    Typical applications

    Swimming pools during pressurisation for higher temperatures and pressures, potable and industrial water, electroplating, chemical industry, processes with a temperature change.

    Resistance to

    Disinfectant

    Measuring principle, technology

    Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, integrated temperature measurement for temperature compensation

    Order no.

    PHEPT 112 VE

    1004571

    Downloads for DULCOTEST pH sensors

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    Overview

    Reliable online measurement of pH values – with DULCOTEST sensors

    The online measurement and adjustment of pH values must be as accurate, fast and reliable as possible and provide good availability of the measured values, be it for the monitoring, control or regulation of chemical processes.

    Our product line of DULCOTEST pH sensors provides a wide range of pH sensors for different measuring tasks.

    Our pH sensors are manufactured to very strict quality controls (e.g. in accordance with RoHS guidelines). Routine steps are automated but critical steps are carried out manually under expert supervision. In this way we achieve the best reproducible quality and cost reduction.

    Your benefits

    • Precise and reliable pH measurement enables efficient processes and excellent process reliability
    • The wide choice of sensor types with different constructions makes them reliable components in many applications
    • A long service life is achieved through the use of the best quality materials for the glass and diaphragms, a stable reference system and optimised production. This minimises both downtime and maintenance
    • With short storage times and fast delivery, your pH sensors can be up and running very quickly and you can make maximum use of their service life (all glass sensors start to age as soon as they leave production)
    • Wide range of special versions for fitting length, cable length and plugs for made-to-measure connection to your process
    • Unique label for OEM partners

    Video

    Application

    Technical Data

    Downloads

    Contact us

    Mr. Vikalp Tripathi

    Managing Director, Heidelberg ProMinent Fluid Controls India Pvt. Ltd.

    »Please send us your request! We will contact you shortly.«

    +91 8023 5788 72  Send request   

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