Knick PH Meter

Introduction

Knick Elektronische Messgeräte­ GmbH & Co. KG have been developing, producing and selling high-quality products and services, with a focus on interface technology and process analytic for 75 years. As a family-owned and run company with nearly 200 employees, the city of Berlin has been the center of our economic activities since our inception in 1945.

Our innovations are based on an intensive exchange of knowledge and expertise between us and our suppliers, customers and sales partners. Our “Knick transducer”, for example, has been a synonym for high-precision transmitters for decades, and in modern liquid analysis, Memosens technology has been established as process standard.

For measuring pH, ORP, conductivity or oxygen in industrial applications, we offer analog as well as digital Memosens-sensors.

They enable low-maintenance and highly precise measurements in the chemical, pharmaceutical and food industries, as well as in the areas of energy and the environment.

Knick PH sensor Product

For measuring pH values in process applications, we offer numerous designs, e.g. also glas and glas-free ISFET sensors. The digital pH measurement is carried out using the Memosens technology, which enables preventive diagnostics for sensor health.

Knick  PH sensors are available with explosion protection, different sensor lengths and a wide range of connection possibilities. They are suitable for a large selection of Knick fittings, such as SensoGate and Ceramat as well as inline, flow-through and immersion fittings.

SE 503 pH Sensor

The standard pH sensor for water / wastewater; robust and low- maintenance

Facts and Features

• Low maintenance, no refilling or pressurizing of electrolyte
• Integrated temperature detector
• 2 ceramic junctions
• Robust due to plastic body
• Integrated probe guard
• VP connector

Robust and insensitive to contamination, plastic body. Also for low-temperature applications. Low-cost, low-maintenance and reliable pH measurement.

Applications

Drinking water, surface water, industrial water, wastewater treatment, environmental analysis

Specifications

• pH: 0 … 14
• Temperature: –5 … 80 °C
• Pressure, relative: 0 … 2 bar
• Temperature detector: Pt1000
• Reference system: Ag/AgCl solid polymer
• Junction: Ceramic (2x)
• Body material: PSU (polysulfone)
• Length: 120 mm
• Process adaptation: PG 13.5
• Sensor connector: VP (VarioPin)

SE 515 pH Sensor

Reasonably priced sensor for water and wastewater treatment

Thanks to its ground-glass sleeve junction even applicable in heavily contaminated media. Designed for MemoRail applications. High stability and a long life cycle are achieved by the special design. Through a ground-glass sleeve junction the reference system is in direct contact with the measured medium. There is hardly any risk of contamination or blocking of the junction. Measurement is possible even at low temperatures thanks to a special low-impedance glass.

Facts and Features

• 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, no refilling of electrolyte
• Integrated temperature detector
• Ground-glass sleeve junction
• Sigma glass; low impedance for low-temperature applications

Thanks to its ground-glass sleeve junction even applicable in heavily contaminated media. Designed for MemoRail applications. High stability and a long life cycle are achieved by the special design.

Specifications

• pH: 0 … 14
• Temperature: –5 … 80 °C
• Pressure, relative: 0 … 4 bar
• Temperature detector: NTC 30 kohms
• Sensor material: Low-impedance Sigma glass
• Reference system: Ag/AgCl, gel electrolyte
• Junction: Ground glass sleeve
• Length: 120 mm edge length
• Process adaptation: PG 13.5
• Sensor connector: Memosens

SE 554 pH Sensor

Low-maintenance sensor for demanding pH measurement in the chemical industry. Digital pH measuring with Memosens-Technology.

High accuracy, stability, rapidness, and a long life cycle are achieved by the special design. Through 2 open junctions, the reference system is in direct contact with the measured medium. There is hardly any risk of contamination or blocking of the junction. The high content and special distribution of potassium chloride in the polymer reduces measurement disturbances which could be caused by liquid junction potentials.

Facts and Features

• Low maintenance, no refilling of electrolyte
• Integrated sensor diagnostics
• Open junctions, no blocking
• Alpha glass, medium impedance, universal glass, fluoride resistant

Memosens Sensors:

• Perfect galvanic isolation thanks to Memosens technology
• No influence of humidity in the connector
• Digital data transfer
• Precalibration in the lab
• Integrated sensor diagnostics
• Simultaneous measurement of pH and ORP

Applications

Measurement in media of extremely high ionic strength, salt brines, strongly oxidizing media, acidic and alkaline media, Industrial applications, dyes, precipitation reactions, polluted media

Specification

• pH: 0 … 14
• Temperature: 0 … 130 °C
• Pressure, relative: 0 … 10 bar
• Temperature detector: NTC 30 kohms
• Sensor material: Alpha glass
• Reference system: Ag/AgCl, polymeric electrolyte
• Junction: Hole (2 x)
• Length: 120 mm / 225 mm/ 325 mm / 425 mm
• Process adaptation: PG 13.5
• Sensor connector: Memosens
• ATEX marking: II 1 G Ex ia IIC T3/T4/T6
• FM marking:
  • IS for Class I, Division 1, Groups A, B, C, D; Class I, Zone 0, AEx/Ex ia IIC T6 … T4
  • NIFW for Class I, Division 2, Groups A, B, C, D; Class I, Zone 2, IIC T6 … T4