Secure liquid level detection

Instrotech is offering the Kobold capacitive level indicators type NMC, specifically designed to measure liquid levels in tanks.  They consist of a measuring probe and a connecting head with a plug-in evaluation module.  Depending on the operating conditions, different probes are available:

  • NMC-N: Standard version with metal tanks inserted, their walls undertaking the task of a second electrode. It is applicable for fluid foods as well as for different waters.
  • NMC-S: The two probe sensor for non-metal tanks for operation in aggressive media.
  • NMC-T: Especially for operation in non-metal holding tanks and media of lower conductivity, the designed probe consists of an interior probe and a surrounding pipe of stainless steel serving as a reference electrode.
  • NMC-H: The electronics of one stick probe of stainless steel is thermally insulated by a special intermediate piece so that the sensor technology can easily handle up to 125 °C.

Working principle

The measuring system is based on the capacitive measuring method. The measuring probe and the tank wall, or the second electrode respectively, from the plates of a capacitor; the medium in the tank is the dielectric fluid.  The capacity depends on the medium.  The more the medium touches the measuring probe, the higher the capacity.  This change is detected by the plug-in evaluation module and transformed in a percentage display or a 4 -20 mA signal.  As there are no movable parts, the unit operates almost wear-free.  Lengths of PTFE coated measuring probes of stainless steel can be freely chosen up to 4000 mm. Problematic apertures at holding tank base or at the side can be avoided by virtue of a simple and secure assembly from top. Fields of application include:

  • Water or water-like liquid
  • Liquid food
  • Chemicals and aggressive liquids
  • Oil
  • Pharmaceutical liquids

For more information on Kobold’s NMC capacitive level indicators for measuring liquid levels in tanks, contact Instrotech on 010 595 1831 or [email protected]



Latest


09 Jun 2021
analytica Lab Africa 2021 cancelled

Messe Muenchen South Africa, organisers of analytica Lab Africa, have announced that this event – the only trade fair for…

analytica Lab Africa 2021 cancelled

Messe Muenchen South Africa, organisers of analytica Lab Africa, have announced that this event – the only trade fair for laboratory technology, analysis, biotechnology and diagnostics in South Africa – has been cancelled. The decision was made after consultations with industry stakeholders, and comes amid ongoing bans and restrictions on…

14 Apr 2021
The Water-Wise City is a smart choice to optimise Africa’s water infrastructure

The concept of the Water-Wise City, as outlined by the International Water Association (IWA), is a key initiative to assist…

The Water-Wise City is a smart choice to optimise Africa’s water infrastructure

The concept of the Water-Wise City, as outlined by the International Water Association (IWA), is a key initiative to assist cities conserve this precious resource. What’s more, Water-Wise Cities are liveable, resilient, sustainable and productive. “It is all about diversifying and integrating the urban water cycle into the design of…

14 Apr 2021
#SaveRalph: Short film aims to ban animal testing in SA

Hollywood filmmakers and movie stars have joined forces with Humane Society International to produce a powerful stop-motion animated short film,…

#SaveRalph: Short film aims to ban animal testing in SA

Hollywood filmmakers and movie stars have joined forces with Humane Society International to produce a powerful stop-motion animated short film, #SaveRalph, to end cosmetic testing on animals around the world, including South Africa. Although banned in 40 countries, the practice is still legal in most of the world, and is…

13 Apr 2021
Skills, collaboration needed to overcome growing water challenges

Capacity development and closer collaboration between public and private sector stakeholders will be necessary if South Africa is to halt…

Skills, collaboration needed to overcome growing water challenges

Capacity development and closer collaboration between public and private sector stakeholders will be necessary if South Africa is to halt its declining water security challenge. This is according to industry experts and advisors to the IFAT Africa trade show and forum, who were speaking to mark South Africa’s National Water…


Top stories


04 Aug 2020
Pandemic fast-tracks progress in air freight supply chain

No going back to the old normal for the pharma air freight supply chain Few – if any – air…

Pandemic fast-tracks progress in air freight supply chain

No going back to the old normal for the pharma air freight supply chain Few – if any – air freight supply chain stakeholders envisaged a global pandemic and air traffic shutdown in their business continuity plans, and all had to react quickly, collaboratively and innovatively to cope with the…

04 May 2020
Pfeiffer Vacuum showcases Hena 50 and Hena 70 powerful vacuum pumps for mass spectrometer systems

Air and Vacuum Technologies represent Pfeiffer Vacuum in South Africa and supply Hena 50 and 70 vacuum pumps.

Pfeiffer Vacuum showcases Hena 50 and Hena 70 powerful vacuum pumps for mass spectrometer systems

Air and Vacuum Technologies represent Pfeiffer Vacuum in South Africa and supply Hena 50 and 70 vacuum pumps.

10 Mar 2020
Treating wastewater with ozone could convert pharmaceuticals into toxic compounds

With water scarcity intensifying, wastewater treatment and reuse are gaining popularity. But some methods for killing microbes in wastewater create…

Treating wastewater with ozone could convert pharmaceuticals into toxic compounds

With water scarcity intensifying, wastewater treatment and reuse are gaining popularity. But some methods for killing microbes in wastewater create disinfection byproducts (DBPs) that could be harmful to human health. Now researchers have found that ozone treatment and subsequent chlorination can convert trace amounts of some pharmaceuticals in wastewater into…

02 Mar 2020
Cannabis compound acts as an antibiotic

Public health agencies worldwide have identified antibiotic resistance of disease-causing bacteria as one of humanity’s most critical challenges. However, scientists…

Cannabis compound acts as an antibiotic

Public health agencies worldwide have identified antibiotic resistance of disease-causing bacteria as one of humanity’s most critical challenges. However, scientists haven’t discovered a new class of antibiotics in more than 30 years. Now, researchers reporting in ACS Infectious Diseases have uncovered the hidden antibiotic potential of a non-psychoactive cannabis compound called cannabigerol…


Visit the official COVID-19 government website to stay informed: sacoronavirus.co.za