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MIK-Goup

Kobold MIK Series

sku Product SKU:  KOB-MIKs

The new KOBOLD flowmeter Type MIK is used for measuring and monitoring the smaller and medium-sized flows of conductivity liquids in pipes. The device operates according to the electromagnetic measurement principle. According to Faraday’s Law of magnetic induction, a voltage is induced in a conductor moving through a magnetic field. The electrically conductive measuring agent acts as the moved conductor.
The voltage induced in the measuring agent is proportional to the flow velocity and is, therefore, a value for the volumetric flow. The flowing media must have a minimum conductivity. The induced voltage is picked up by two sensing electrodes that are in contact with the measuring agent and sent to the measuring amplifier. The flow rate will be calculated based on the cross-sectional area of the pipe.
The measurement is not depending on the process liquid and its material properties such as density, viscosity and temperature. The device may be equipped with a switch, frequency or analogue output. Moreover, there is a compact electronic system to be selected from, which contains a switch and an analogue output. The device series is completed by optionally obtainable dosing and counter electronic system.
The counter electronics system shows the current flow rate on the first line of the display and shows the partial or overall volume on the second line. A dosing electronic system controls simple filling duties and also measures the flow rate, overall volume and filling volume. The analogue output and two relay outputs can be utilised for the further processing of signals.

Media

  1. Electric conductivity liquids
  2. Acids and caustic solutions
  3. Drinking, cooling and wastewater
  4. Groundwater, raw water
  5. Unsuitable for oil (missing conductivity)

Applications

Flow monitoring, Flow measuring, dosing and counting for:

  1. Machine building
  2. Chemical industry
  3. Paper inductry
  4. Cement industry
  5. Laboratir

ZAR 0,0000

KOB-KMT

Kobold KMT

sku Product SKU:  KOB-KMT

The flowmeter of the series KMT, based on the measurement principle of thermal mass flow, is ideally suited for the measurement of flow of compressed air and gases in pipes with sizes from DN 15 ... DN 700. Measurement of for instance the usage of compressed air, nitrogen, CO2, O2 or other non-corrosive, non-flammable gases. The KMT is setting new standards in terms of measurement accuracy and reproducibility thanks to its application specific adjustment during production.
This flowmeter is adjusted under a pressure of 7 bar (abs) (DN 15 ... DN 50) or  9 bar (abs) (DN 65 ... DN 700). Adjusting the device specifically for its application has the advantage of keeping the actual flow speed in the pipeline low even with very large flow  quantities. Thanks to the more stable flow profile, this low flow speed facilitates a much better degree of reproducibility and accuracy than if the device were adjusted conventionally under normal pressure, as flow speeds up to 200 Nm/s can often no longer be controlled under conventional adjustment pressures.
The core design of the flowmeter is based on the hot film sensor element, which is produced  using the most modern thin film technology and has already proven itself time and time again in the automotive industry. This flow sensor features excellent long-term stability, a fast  response time and an extremely high degree of reliability. Two outputs are available, for further processing of the measurement data. Depending on the application, these outputs can be  configured as analogue (current or voltage), switch output or as pulse output for the measurement of the consumption.
The KMT has an integrated counter for consumption. The consumed  amount is shown on the display and the saved value is not lost even after power outage. The availability of the consumption amount as a free configurable pulse output is another helpful  feature.

ZAR 0,0000

KOB-DOG

Kobold DOG

sku Product SKU:  KOB-DOG

Whether for industrial processes, biogas plants, sewage treatment plants, or when using hydrogen, gas volume measurements are carried out in all these areas of application. For many years, machine and plant manufacturers as well as customers from the process industry have been extremely satisfied with the range of reliable and durable instrument devices from the factories of KOBOLD Messring.

For many years, KOBOLD Messring has had an oscillation flow meter in its range, namely the DOG-4, however, after extensive revision the design has evolved to the latest version with a clear classification and new possible uses.  This latest version is the DOG-6.

DOG-4 and DOG-6 for a variety of uses

The previous model, the oscillating flow meter DOG-4, is only suitable for dry gases.  In addition to this, the development of the DOG-6 oscillation flowmeter provides the capability to measure both dry and moist gases.

Due to a special device design, it offers clear advantages over the previous model DOG-4, especially when used with damp media, for example with natural condensate drainage. Thanks to its robust sensor, it is ideally suited for such applications. The DOG-6 is also equipped with an optional shut-off valve, calibration software and a flow computer. Depending on customer requirements, the DOG-6, for which there is of course an individual calibration protocol for each device, can be manufactured as an individual custom-made product. Its areas of application are extremely extensive because it is suitable for dry gases and mixed gases as well as for gas mixtures and moist gases.

What happens with the oscillation measuring method?

With this flow measurement, a partial flow of the medium is routed through a bypass into the flow oscillator. In the oscillator, the actual measuring cell, the medium flows through a chamber with two flow channels. A bluff body directs the flow either to the left or to the right. A channel on the side of the bluff body connects both sides. The flow creates positive pressure on one side and negative pressure on the other. The pressure difference redirects the media flow to the other side. The flow begins to oscillate between the two sides and causes the medium in the connecting channel to oscillate.

The frequency of the oscillation is a measure of the flow velocity. A platinum hot-wire sensor detects the oscillation in the connection channel and converts it into an electrical signal. The signal is processed in the downstream electronics and displayed or output.

What is the new DOG-6 suitable for?

The DOG-6 oscillation flowmeter shows what it can do, especially in tough industrial applications. A key advantage is that it is designed without moving wear parts and its sensor easily withstands aggressive media, moisture and dirt particles. The installation position can be selected as desired, however, in the case of condensate in the gas, Kobold recommends horizontal installation. This is because the construction of the device leads to the drainage of the condensate from the oscillator, which is further optimized by the inclined measuring head.

The latter is required, for example, when biogas is generated naturally in the fermenter. This makes the DOG-6 particularly suitable for biogas plants, especially as it is also resistant to Sulphur. Another advantage: it also works at low operating pressure, with only small pressure losses, typically less than 30 mbar.

The DOG-6 is available in a stainless steel flange design with a wide range of nominal diameters up to DN 200. A wide range of custom-made products are also available. In addition to biogas plants, the DOG-6 oscillation flowmeter can also provide excellent service in sewage treatment plants, in industrial processes, and in hydrogen applications.

Furthermore, measurements can be carried out for various gases such as compressed air, natural gas, biogas, hydrogen, digester gas, various gas mixtures or for medical or technical gases such as propane, argon or similar.

Other advantages of the DOG-6 Oscillation Flow Meter

The device is characterized by a selection of several measuring ranges per nominal width, high measuring accuracy and long-term stability. It has ATEX/IECEx approvals for potentially explosive areas of application from zone 0. Since the device is extremely insensitive to contamination and works wear-free, its use is also almost maintenance-free, however, if the device sensor needs to be replaced, this can be accomplished on site without interrupting the process. This is ensured by optional shut-off valves. With this service process, a recalibration is not necessary.

The large measuring range and diverse, individually programmable electronics options ensure that the DOG-6 can handle a wide range of gases, including promising energy sources such as biogas and hydrogen. External influences such as pressure and temperature changes, the DOG-6 easily withstands changes. Individual evaluations are made possible in particular by using the flow computer. In addition to instantaneous and cumulative flow rates, temperature and pressure can be evaluated via separate inputs in order to output standard units. In addition, data storage and communication can be implemented via numerous output options.

 With all these advantages, the DOG-6 offers an impressive number of possible uses, durability, and accuracy in the measurements - and at an unbeatable price. A comparable price-performance ratio is unattainable for the alternative ultrasonic technology.

 

ZAR 0,0000


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