pH buffer standard solution

Calibration solution for pH sensors

Available buffers: pH 4.0, pH 7.0 or pH 10.0
Accuracy: 0.01 pH units according to NIST (at +20°C / +68°F)
Coloured, ready-to-use reagent according to ISO 17025
250 ml and 1 L containers

Calibration solution for pH sensors

Available buffers: pH 4.0, pH 7.0 or pH 10.0
Accuracy: 0.01 pH units according to NIST (at +20°C / +68°F)
Coloured, ready-to-use reagent according to ISO 17025
250 ml and 1 L containers

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The pH buffer solution is a high-quality technical reagent suitable for calibration of KROHNE SMARTPAT and OPTISENS pH sensors. It is traceable to NIST standard reference solutions. The pH calibration solutions are available in 250 ml and 1 L containers.

Сопутствующие изделия

Water analysis panel

Multi-parameter measuring system for water quality monitoring

Flexibility in selecting different water parameters: dissolved oxygen, turbidity, conductivity, pH/ORP
Installation on compact analytical modules: All measuring points at one location
Completely pre-wired and pre-assembled for easy bypass installation

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SMARTPAT PH 1590

Potentiometric pH sensor for potable, process or treated water applications

2-wire loop powered, 4…20 mA/HART^® 7, for direct connection to a PCS
Process connection: ¾ NPT (male)
0…14 pH; Max. +80°C / +176°F; 6.9 bar / 100 psi
With CPVC sensor body, ceramic diaphragm and Pt1000 for temperature compensation

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SMARTPAT PH 2390

Potentiometric pH sensor for municipal and industrial wastewater applications

2-wire loop powered, 4…20 mA/HART^® 7, for direct connection to a PCS
Process connection: ¾ NPT (male)
0…14 pH; Max. +80°C / +176°F; 6.9 bar / 100 psi
With PPS sensor body, PTFE diaphragm and Pt1000 for temperature compensation

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SMARTPAT PH 8150

Potentiometric pH sensor for chemicals and industrial wastewater applications

2-wire loop powered, 4…20 mA/HART^® 7, for direct connection to a PCS
Process connection: PG13.5
0…14 pH; Max. +130°C / +266°F; 12 bar / 174 psi
Glass sensor with open diaphragms and Pt1000 for temperature compensation

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SMARTPAT PH 8320

Potentiometric pH sensor for water and wastewater applications

2-wire loop powered, 4…20 mA/HART^® 7, for direct connection to a PCS
Process connection: PG13.5
0…14 pH; Max. +70°C / +158°F; 10 bar / 145 psi
Glass sensor with PTFE diaphragm and Pt1000 for temperature compensation

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SMARTPAT PH 8530

Potentiometric pH sensor for pure water and low conductivity media (>2 μS/cm)

2-wire loop powered, 4…20 mA/HART^® 7, for direct connection to a PCS
Process connection: PG13.5
0…14 pH; Max. +80°C / +176°F; 12 bar / 174 psi
Glass sensor with 3 ceramic diaphragms and Pt1000 for temperature compensation

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SMARTPAT PH 8570

Potentiometric pH sensor for food, beverage and pharmaceutical applications

2-wire loop powered, 4…20 mA/HART^® 7, for direct connection to a PCS
Process connection: PG13.5
0…14 pH; Max. +140°C / +284°F (SIP/CIP); 12 bar / 174 psi
Autoclavable glass sensor with ceramic diaphragm and Pt1000 for temperature compensation

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OPTISENS PH 8100

Potentiometric pH sensor for chemicals, industrial wastewater and low conductivity media (>2 μS/cm)

For use with analytical transmitter
Process connection: PG13.5
0…14 pH; Max. +130°C / +266°F; 10 bar / 145 psi
Glass sensor with 2 open diaphragms and Pt100 for temperature compensation

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OPTISENS PH 8300

Potentiometric pH sensor for wastewater, surface and process water applications

For use with analytical transmitter
Process connection: PG13.5
0…14 pH; Max. +70°C / +158°F; 10 bar / 145 psi
Glass sensor with PTFE diaphragm and optional Pt100 for temperature compensation

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OPTISENS PH 8390

Potentiometric pH sensor for municipal and industrial wastewater applications

For use with analytical transmitter
Process connection: ¾ NPT (male)
0…14 pH; Max. +80°C / +176°F; 6.9 bar / 100 psi
With CPVC sensor body, PTFE diaphragm and Pt100 for temperature compensation

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OPTISENS PH 8500

Potentiometric pH sensor for potable water applications

For use with analytical transmitter
Process connection: PG13.5
0…14 pH; Max. +70°C / +158°F; 2 bar / 30 psi
Glass sensor with ceramic diaphragm and optional Pt100 for temperature compensation

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OPTISENS PH 8590

Potentiometric pH sensor for water and wastewater applications

For use with analytical transmitter
Process connection: ¾ NPT (male)
0…14 pH; Max. +80°C / +176°F; 6.9 bar / 100 psi
With CPVC sensor body, ceramic diaphragm and Pt100 for temperature compensation

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OPTISENS PH 9100

Potentiometric pH sensor for lower conductivity water applications (>20 μS/cm)

For use with analytical transmitter
Process connection: PG13.5
0…14 pH; Max. +100°C / +212°F; 1 bar / 14 psi
Liquid electrolyte glass sensor with open glass sleeve diaphragm

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OPTISENS PH 9500

Potentiometric pH sensor for lower conductivity water applications (>50 μS/cm)

For use with analytical transmitter
Process connection: PG13.5
0…14 pH; Max. +100°C / +212°F ; 1 bar / 14 psi
Liquid electrolyte glass sensor with 3 ceramic diaphragms

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