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Knick Laboratory Sensors

Analog and digital laboratory sensors for benchtop and portable meters for measuring pH, conductivity and oxygen. Available in various materials and sensor lengths, with different types of connection, digital Memosens technology, and as specific laboratory sensors for food, water and environmental applications, or for the chemical and pharmaceutical sectors.

pH Sensors

SE 101-AN SE 102-AN SE 101-MS SE 102-MS SE 100 N SE 103 N SE 104 SE 106 N

SE 101-AN

pH Sensor

pH Sensor with Polymer Body and Temperature Detector

Polymer electrolyte
Ceramic junction (2x)
Integrated temperature detector
Polymer body
pH glass with low impedance; also suitable for measurements at low temperatures

The SE 101-AN pH sensor features a highly robust polymer body, making it ideal for pH measurements in the fields of environmental analysis and water management. It has an integrated Pt1000 temperature detector.

Applications
Media containing suspended solids, water, wastewater, environmental analysis

SE 102-AN

pH Sensor

pH Sensor with Integrated Temperature Detector

Liquid electrolyte, refillable
Ceramic junction
Integrated temperature detector
pH glass with low impedance; also suitable for measurements at low temperatures, low alkali error

The SE 102-AN sensor with glass body is a reliable sensor for precise pH measurements in the laboratory and in the field. It has an integrated Pt1000 temperature detector. The electrolyte is refillable.

Applications
Precision measurements, chemical applications, aggressive media, quality control

SE 101-MS

pH Sensor

Robust pH sensor with plastic body, digital, with Memosens technology

Perfect galvanic isolation thanks to Memosens technology
No influence of humidity in the connector
Can be precalibrated
Digital data transfer
Integrated sensor diagnostics
Integrated temperature detector
2 ceramic junctions
Robust design with polysulfone plastic body
Special pH glass with low imped-ance; also suitable for measure-ments at low temperatures

This sensor offers significant advantages with regard to handling and robustness as a result of contactless, digital Memosens technology. In addition, its polysulfone plastic body makes it highly suitable for environ-mental measurements and water management.

Applications
Media with solid components, water, wastewater, environmental measurements.

SE 102-MS

pH Sensor

pH sensor with high reliability and precision, digital, with Memosens technology

Perfect galvanic isolation thanks to Memosens technology
No influence of humidity in the connector
Can be precalibrated
Digital data transfer
Integrated sensor diagnostics
Liquid electrolyte, refillable
Integrated temperature detector
Ceramic junction
Special pH glass with low imped-ance; suitable for measurements in a broad temperature range, including low temperatures

The special pH glass enables rapid, stable sensor response. It can be used in a broad temperature range, even under difficult measuring conditions. The liquid electrolyte of the reference electrode can be refilled.

SE 100 N

pH Sensor

Sensor with liquid filling. For rapid sample change and low sample temperatures.

Facts

pH/Pt 1000 sensor
Connection: DIN coax connector and 4 mm banana plug
Body material: glass
Body length: 170 mm
Body diameter: 12 mm
Junction: ceramic
Temperature sensor: Pt 1000
Electrolyte: 3 mol/l KCl
pH measurement range: 0 … 14
Temperature range: -5 … 100 °C

This liquid-filled sensor is designed for tough daily use in the lab. The sensor is ideal for rapid sample change and low sample temperatures. It also fits in an Erlenmeyer flask.

The integrated temperature sensor automatically compensates the pH measurement for temperature variations when the sensor is used in samples at different temperatures.

SE 103 N

pH Sensor

Sensor with liquid filling. For rapid sample change and low sample temperatures.

pH sensor
Connection: DIN coax connector
Body material: glass
Body length: 170 mm
Body diameter: 12 mm
Junction: ceramic
Electrolyte: 3 mol/l KCl
pH measurement range: 0 … 14
Temperature range: -5 … 100 °C
Recommended temperature sensor: ZU 6959

This liquid-filled sensor is designed for tough daily use in the lab. The sensor is ideal for rapid sample change and low sample temperatures. It also fits in an Erlenmeyer flask.

SE 104

pH Sensor

Robust pH puncture sensor with plastic body. Also digital, with Memosens technology.

pH puncture sensor
Connection: DIN coax connector / Memosens
Body material: plastic (Noryl)
Body length: 65 / 25 mm
Junction: hole junction
Electrolyte: polymer
pH measurement range: 2 … 13
Temperature range: -5 … 80 °C

The ergonomically designed sensor has a robust body and allows perfect handling even in viscous samples. The reference system with open junction is arranged in a way that the measured value stabilizes immediately after sensor insertion.

Applications
Semi-solid and very tough samples as common in the food industry

SE 106 N

pH Sensor

Sensor for highly accurate measurements even in difficult samples.

pH/Pt 1000 sensor
Connection: DIN coax connector and 4 mm banana plug
Body material: glass
Body length: 170 mm
Body diameter: 12 mm
Junction: ground glass sleeve
Temperature sensor: Pt 1000
Electrolyte: 3 mol/l KCl
pH measurement range: 0 … 14
Temperature range: -5 … 100 °C

For highly accurate measurements even in difficult samples. The ground-glass junction combined with the refillable liquid electrolyte provides a perfect contact and allows measuring at low conductivities or in coating media.

Conductivity Sensors

SE 615 SE 202 SE 204 ZU 6985

SE 615

Memosens 2-Electrode Sensor

Reasonably priced sensor for water and wastewater treatment

Perfect galvanic isolation thanks to Memosens technology
No influence of humidity in the connector
Precalibration in the lab
Digital data transfer
Integrated sensor diagnostics
low maintenance
Integrated temperature detector
2 graphite electrodes

Large measuring range thanks to electrodes made from low polarized special graphite. Designed for MemoRail applications. The SE 615 conductivity sensor with Memosens connector system has 2 graphite electrodes and requires low maintenance.

SE 202

2-Electrode Sensor

Laboratory conductivity sensor with 2 electrodes, electrode and body material 1.4571 stainless steel, connector head POM.

Body diameter 12 mm
Body length 120 mm
Immersion depth 30 … 120 mm
Operating range 0.01 … 199.9 µS/cm
Pressure resistance:
- SE 202: 2 bar
- SE 202 MS: 1 bar
Integrated temperature sensor NTC 30 KOhm/25 °C
Operating temperature range:
- SE 202: -5 … 100 °C
- SE 202 MS: -5 … + 80 °C

Applications
Measurement in media with low conductivity such as ultrapure water/boiler feedwater and demineralized or ion-exchanged water.

SE 204

ZU 6985

Conductivity Sensor

Easy to use
No platinization required
Large measuring range: 1 μS/cm … 1 S/cm
Simultaneous temperature measurement
High chemical resistance (materials: glass, platinum, PTFE, FKM)
Virtually resistant to contamination
Immediately ready for measurement thanks to individually measured cell constants

The sensor has a very large measuring range from 1 μS/cm to 1 S/cm and is equipped with a quick-reacting Pt1000 temperature detector. It has a glass/platinum 4-electrode measuring system with an easy-to-re-place precision glass tube, is simple to clean, and does not require platinization.

Applications
Precise measurements in a broad conductivity range in the laboratory or during portable use – the resistant materials also permit use in media with serious chemical stress.

Oxygen Sensors

SE715 Memosens SE 340

SE715 Memosens

Oxygen Sensor

Affordable sensor for water and wastewater treatment. Designed for Memo-Rail applications.

perfect galvanic isolation thanks to Memosens technology
Quick response
Low maintenance, high long-term stability
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 SE715 is a digital amperometric oxygen sensor used to determine dissolved oxygen content in aqueous media. It requires little maintenance and features high long-term stability, a fast response, and low flow dependence.

In addition, Memosens technology provides the full range of established benefits in terms of handling and sensor diagnostics.

Applications
Water, wastewater, aeration, ventilation control, fish farming, aquariums

SE 340

Oxygen Sensor

The digital, optical oxygen sensor stores the calibration values in its head and is ready for measuring immediately.

The advantages of the fluorescence quenching method come to light in particular during mobile oxygen measuring:

no polarization delay – ready for measuring immediately
no oxygen consumption
independent of the flow
integrated monitoring of the membrane state
no electrolyte required

This makes mobile oxygen measuring more precise and extremely low maintenance. Calibration is performed directly in the integrated quiver of the Portavo 907 Multi Oxy.