Knick ORP Sensors

Knick’s ORP sensors are available in different versions – analog or digital with Memosens technology – even with explosion protection.
Thanks to the different sensor lengths and multiple connection options, they can be adapted to different fittings. These fittings include retractable fittings such as SensoGate and Ceramat, inline fittings, flow-through fittings, and immersion fittings to satisfy a broad range of application requirements.

MemoSuite Sensor Management Tool
Memosens contactless sensor coupling
Ex | For very high ionic strength media
Low-Maintenance pH/ORP Sensor for Simultaneous Measurement in Demanding Chemical Industry Processes
- Simultaneous measurement of pH and ORP value possible
- Solid electrolyte
- Integrated temperature detector
- Low maintenance, no electrolyte refilling
- 2 open hole junctions, no blockage due to solids in the medium
- Perfect galvanic isolation thanks to Memosens technology
- No influence of humidity in the connector
- Precalibration in the lab
- Digital data transfer
The special design allows for high accuracy, stability and durability. The reference system is in direct contact with the measured medium via two open connections, which minimizes the risk of a junction becoming blocked when there are solids in the medium. The high potassium chloride content and its distribution in the solid electrolyte reduce interference from diffusion potentials at the junction. The sensor with the advanced Memosens II technology by Knick is designed for higher ambient temperatures.
Memosens II by Knick:
- Ambient temperature up to 100 °C
- Ex approval for gas and dust
- Diagnostics with load matrix and statistics on transmitters with graphical display
Applications
Measurement in media of extremely high ionic strength, salt brines, strongly oxidizing media, acidic and alkaline media
Specifications
| Measurement Parameter: | pH, ORP |
| Connector: | Memosens |
| Measuring Range: | 0 … 14 pH, ± 1500 mV |
| Explosion protection: | Yes |
| Length: | 120 mm |
| Process Connection: | PG 13.5 |
| Temperature Detector: | NTC 30 kΩ |
| Reference System: | Ag/AgCl/Cl solid electrolyte |
| Relative process pressure: | 0 … 10 bar (0 … 145 psi) |
| Wetted materials: | Body → Glass, Electrode (ORP) → Platinum, Junction → 2× hole, Sensor tip → Alpha glass |
| Process Temperature: | 0 … 130 °C (32 … 266 °F) |
| Tightening torque: | 1 ... 3 Nm |
| Electrical connection: | Memosens connector |
Ex | For very high ionic strength media
Low-Maintenance pH/ORP Sensor for Simultaneous Measurement in Demanding Chemical Industry Processes
- Simultaneous measurement of pH and ORP value possible
- Solid electrolyte
- Integrated temperature detector
- Low maintenance, no electrolyte refilling
- 2 open hole junctions, no blockage due to solids in the medium
- Perfect galvanic isolation thanks to Memosens technology
- No influence of humidity in the connector
- Precalibration in the lab
- Digital data transfer
The special design allows for high accuracy, stability and durability. The reference system is in direct contact with the measured medium via two open connections, which minimizes the risk of a junction becoming blocked when there are solids in the medium. The high potassium chloride content and its distribution in the solid electrolyte reduce interference from diffusion potentials at the junction. The sensor with the advanced Memosens II technology by Knick is designed for higher ambient temperatures.
Memosens II by Knick:
- Ambient temperature up to 100 °C
- Ex approval for gas and dust
- Diagnostics with load matrix and statistics on transmitters with graphical display
Applications
Measurement in media of extremely high ionic strength, salt brines, strongly oxidizing media, acidic and alkaline media
Specifications
| Measurement Parameter: | pH, ORP |
| Connector: | Memosens |
| Measuring Range: | 0 … 14 pH, ± 1500 mV |
| Explosion protection: | Yes |
| Length: | 225 mm |
| Process Connection: | PG 13.5 |
| Temperature Detector: | NTC 30 kΩ |
| Junction: | Hole (2×) |
| Reference System: | Ag/AgCl/Cl solid electrolyte |
| Sensor Material: | Alpha glass, Platinum |
| Relative process pressure: | 0 … 10 bar (0 … 145 psi) |
| Wetted materials: | Body → Glass, Electrode (ORP) → Platinum, Junction → 2× hole, Sensor tip → Alpha glass |
| Process Temperature: | 0 … 130 °C (32 … 266 °F) |
| Tightening torque: | 1 ... 3 Nm |
Ex | CIP/SIP capable | Sterilizable | For aggressive media
Steam-sterilizable sensor providing high reliability and precision, digital, with Memosens technology
- Simultaneous measurement of pH and ORP
- Gel electrolyte, pressurized and long-term stable
- Ceramic junction
- Silver ion trap
- Integrated temperature detector
- Omega glass with high impedance for high-temperature applications, very low alkali error
- CIP/SIP capable, safe sterilization with temperature monitoring
- Perfect galvanic isolation thanks to Memosens technology
- No influence of humidity in the connector
- Precalibration in the lab
- Digital data transfer
- Integrated sensor diagnostics
The digital pH/ORP sensor SE555X/1-AMSN has a special pH glass with high impedance for high-temperature applications and low alkali error as well as a platinum disk as ORP measuring element.
The sensor is CIP and SIP capable. The silver ion trap prevents contamination and blocking of the junction by silver sulfide in sulfide-containing media. The reference electrolyte is biocompatible. This makes the sensor predestined for applications in food and biotechnology, but it is also suitable for continuous and simultaneous measurement of pH and ORP in process chemistry or wastewater.
In addition, the Memosens technology offers all known advantages in terms of handling and sensor diagnostics.
Applications
Fermentation, food and beverages, aggressive media, extreme pH values, waste water
Specifications
| Measurement Parameter: | pH, ORP |
| Connector: | Memosens |
| Measuring Range: | 0 … 14 pH, ± 1500 mV |
| Explosion protection: | Yes |
| Length: | 120 mm |
| Process Connection: | PG 13.5 |
| Temperature Detector: | NTC 30 kΩ |
| Junction: | Ceramic (1×) |
| Reference System: | Ag/AgCl with silver ion trap. Gel electrolyte, pressurized |
| Electrolyte: | Gel electrolyte with pressure pads |
| Relative process pressure: | -1 … 6 bar (-14.5 … 87 psi) |
| Wetted materials: | Body → Glass, Electrode (ORP) → Platinum, Junction → Ceramic, Sensor tip → Omega glass |
| Process Temperature: | 0 … 135 °C (32 … 275 °F) |
| Tightening torque: | 1 ... 3 Nm |
| Electrical connection: | Memosens connector |
Ex | CIP/SIP capable | Sterilizable | For aggressive media
Steam-sterilizable sensor providing high reliability and precision, digital, with Memosens technology
- Simultaneous measurement of pH and ORP
- Gel electrolyte, pressurized and long-term stable
- Ceramic junction
- Silver ion trap
- Integrated temperature detector
- Omega glass with high impedance for high-temperature applications, very low alkali error
- CIP/SIP capable, safe sterilization with temperature monitoring
- Perfect galvanic isolation thanks to Memosens technology
- No influence of humidity in the connector
- Precalibration in the lab
- Digital data transfer
- Integrated sensor diagnostics
The digital pH/ORP sensor SE555X/1-AMSN has a special pH glass with high impedance for high-temperature applications and low alkali error as well as a platinum disk as ORP measuring element.
The sensor is CIP and SIP capable. The silver ion trap prevents contamination and blocking of the junction by silver sulfide in sulfide-containing media. The reference electrolyte is biocompatible. This makes the sensor predestined for applications in food and biotechnology, but it is also suitable for continuous and simultaneous measurement of pH and ORP in process chemistry or wastewater.
In addition, the Memosens technology offers all known advantages in terms of handling and sensor diagnostics.
Applications
Fermentation, food and beverages, aggressive media, extreme pH values, waste water
Specifications
| Measurement Parameter: | pH/ORP |
| Connector: | Memosens |
| Measuring Range: | 0 … 14 pH, ± 1500 mV |
| Explosion protection: | Yes |
| Length: | 225 mm |
| Temperature: | 0 … 135 °C |
| Temperature Detector: | NTC 30 kΩ |
| Junction: | Ceramic (1×) |
| Reference System: | Ag/AgCl with silver ion trap |
| Electrolyte: | Gel electrolyte with pressure pads |
| Relative process pressure: | -1 … 6 bar (-14.5 … 87 psi) |
| Wetted materials: | Body → Glass, Electrode (ORP) → Platinum, Junction → Ceramic, Sensor tip → Omega glass |
| Tightening torque: | 1 ... 3 Nm |
| Electrical connection: | Memosens connector |
Ex | For highly contaminated media with pressure fluctuations
Heavy duty ORP sensor providing high reliability and precision.
- perfect galvanic isolation thanks to Memosens technology
- no influence of humidity in the connector
- polymer electrolyte
- 2-hole junction – no blocking
- for industrial sewages
- Suitable for solvent-containing processes
- digital data transfer
- integrated sensor diagnostics
- integrated temperature detector
Heavy duty ORP sensor designed for highly contaminated media with pressure fluctuations. The state-of-the-art polymer electrolyte of the reference system provides good long-term stability.
The 2-hole junction prevents blocking also in waste water containing solid impurities.
Applications
Industrial applications, dyes, precipitation reactions, polluted media
Spcifications
| Measurement Parameter: | ORP |
| Connector: | Memosens |
| Measuring Range: | ± 1500 mV |
| Explosion protection: | Yes |
| Length: | 120 mm |
| Process Connection: | PG 13.5 |
| Temperature: | 0 … 130 °C |
| Pressure, relative: | 0 … 10 bar |
| Temperature Detector: | NTC 30 kΩ |
| Junction: | Hole (2×) |
| Reference System: | Ag/AgCl, polymer electrolyte |
| Material of measuring electrode: | Platinum |
Ex | For hygienic processes and sterile applications
ORP sensor for hygienic processes and sterile applications.
- perfect galvanic isolation thanks to Memosens technology
- no influence of humidity in the connector
- digital data transfer
- integrated sensor diagnostics
- state-of-the-art gel electrolyte
- integrated temperature detector
- ceramic junction
- for hygienic and sterile applications
- for heavily polluted media
- for media containing sulfides
- for media containing proteins
- suitable for solvent-containing processes
The SE565 ORP sensors are of low maintenance. Through a ceramic junction, the pressurized reference system with gel electrolyte is in contact with the process medium. The measuring electrode is made of platinum.
SE565 sensors are designed for simultaneous measurement of ORP and temperature in industrial processes.
They are suitable for sterilization with steam and they provide a reference system which has been developed for the use in food and pharmaceutical products.
Applications
Hygienic and sterile applications, food and pharmaceutical industry, biotechnology
Specifications
| Measurement Parameter: | ORP |
| Connector: | Memosens |
| Measuring Range: | ± 1500 mV |
| Explosion protection: | Yes |
| Length: | 120 mm |
| Process Connection: | PG 13.5 |
| Temperature: | 0 … 135 °C |
| Pressure, relative: | -1 … 6 bar |
| Temperature Detector: | NTC 30 kΩ |
| Junction: | Ceramic (1×) |
| Reference System: | Ag/AgCl, pressurized gel electrolyte |
| Material of measuring electrode: | Platinum |
For hygienic processes and sterile applications
ORP sensor for hygienic processes and sterile applications.
- perfect galvanic isolation thanks to Memosens technology
- no influence of humidity in the connector
- digital data transfer
- integrated sensor diagnostics
- state-of-the-art gel electrolyte
- integrated temperature detector
- ceramic junction
- for hygienic and sterile applications
- for heavily polluted media
- for media containing sulfides
- for media containing proteins
- suitable for solvent-containing processes
The SE565 ORP sensors are of low maintenance. Through a ceramic junction, the pressurized reference system with gel electrolyte is in contact with the process medium. The measuring electrode is made of platinum.
SE565 sensors are designed for simultaneous measurement of ORP and temperature in industrial processes.
They are suitable for sterilization with steam and they provide a reference system which has been developed for the use in food and pharmaceutical products.
Applications
Hygienic and sterile applications, food and pharmaceutical industry, biotechnology
Specifications
| Measurement Parameter: | ORP |
| Connector: | Memosens |
| Measuring Range: | ± 1500 mV |
| Explosion protection: | Yes |
| Length: | 225 mm |
| Process Connection: | PG 13.5 |
| Temperature: | 0 … 135 °C |
| Pressure, relative: | -1 … 6 bar |
| Temperature Detector: | NTC 30 kΩ |
| Junction: | Ceramic (1×) |
| Reference System: | Ag/AgCl, pressurized gel electrolyte |
| Material of measuring electrode: | Platinum |
