Established supplier of measurement instrumentation, analyzers, and control products serving the Americas. Our cross-industry experience gives us a unique ability to identify, develop, and implement innovative measurement solutions.

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The Largest Range of Coriolis Meters in the World!

Rheonik is a leading manufacturer of Coriolis mass flow meters with a solid reputation throughout industry for high quality, reliable flow products. Rheonik started making Coriolis mass flow meters in 1984 with the introduction of the Omega shaped Coriolis sensor. This unique, patented design is renowned for its incredible stability and performance in the most difficult of applications while being one of the simplest to install, configure and operate. The Omega platform was used to produce the world’s first 12” Coriolis meter and currently carries the world’s highest pressure meters with some sensors capable of operating continuously at pressures in excess of 23000psi.

Coupled to the Omega sensor is a variety of electronic transmitters designed for process applications in the field along with a range of low cost, embedded OEM transmitters for machinery and equipment designers

Every meter is calibrated to a traceable reference standard and is supplied with calibration certificate and a full warranty. Application and maintenance services for Rheonik meters are supplied through key channel partners around the globe trained to provide rapid expert assistance when needed.

Rheonik Coriolis Mass Flowmeters Offer these Outstanding Features:

  • ¼” to 12″ line sizes
  • Flow rates from 2 g/min to 30000 kg/min (1oz/min to 66150 lb/min)
  • Pressures up to 23,500psi
  • Wide choice of wetted materials of construction
  • Hazardous area approvals
  • Temperature ratings from -196 to 350°C (-320 to 662°F)
  • Mass flow uncertainty down to 0.10%
  • High tolerance to aeration and other flow disturbances
  • Repeatability better than 0.05%
  • Measurement of liquids, sludge, suspensions and gases
  • Process connection customization available
  • Unique robust torsion driven oscillation system
  • Minimum footprint versions available
  • Robust stainless steel cases
  • Remote and compact transmitter versions available

Rheonik’s ISO 9000 certified manufacturing facilities are based just outside of Munich in Germany where a vertically integrated manufacturing plant produces the entire Rheonik flow meter range for shipment around the globe.

Large Coriolis Flow Meter
Flow Meter in Brackets
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State-of-the-Art Photometers for any Application

Kemtrak is a cutting edge optical technology company manufacturing a range of high quality industrial photometric analyzers for real-time reliable measurement of:

  • Concentration
  • Color
  • Turbidity
  • Solids
  • Fluorescence

in liquids and gases. Utilizing the very latest optical technology components available, Kemtrak provides photometric analyzers with superior accuracy and stability and without price premium.

The heart of the Kemtrak system is the 007 electronic and optical bench, the platform upon which all Kemtrak analyzers are built. The 007 series expands and extends process measurement range and marries offline sample testing and analysis with online real time measurement to improve product quality and reduce overhead costs. Optical sensors are available in both inline cell and insertion probe styles for maximum flexibility when deploying into industrial plant in any industry.

Each Kemtrak unit has these outstanding features:

  • Drift Free Operation
  • Low to Zero Maintenance Requirements – Install and Forget
  • Advanced Process Diagnostics for Measurement Confidence
  • Connectivity – Integrate into Overall Plant Schemes using Industry Standard Signals and Communications
  • Low Light Energy Levels for Super-Stable LED’s
  • Traceable Validation of Measurement Capability
  • Single and Dual Channel Operation
  • Configurable Anywhere in the UV to NIR Wavelength Range

Kemtrak global headquarters are located in Stockholm, Sweden with ISO 9001:2000 certified manufacturing facilities in Gothenburg, Sweden. With over 25 years of industrial analysis experience, Kemtrak products come backed up by a wealth of knowledge including application experience and process know-how along with state-of-the-art technology to provide exceptional measurement performance in thousands of measurement applications globally.

Revolutionary pH/ORP Measurement Technology from REFEX

Refex products represent a revolutionary advance in pH and ORP measurement technology that solves the key weakness of the reference electrode in traditional probe designs. These traditional designs depend upon having a porous junction to provide electrochemical connection between the probe’s reference electrode and the process flow being measured. This necessary contact with process fluid allows interaction with the [stable] internal liquid in the reference half-cell, commonly diluting and/or poisoning it and causing measurement drift while leading to eventual sensor failure. In harsh applications, this interaction can lead to rapid failure.


Refex pH reference electrodes are constructed from an advanced polymeric material that provides an electrochemical connection to the reference electrode within the probe without any direct process fluid contact. This eliminates the problems of measurement stability and reduced probe life seen in traditional probes. The construction method of Refex sensors utilizes a large section of the electrode body to provide the reference connection, massively reducing measurement error introduced by material in the process coating the outside of the probe. Refex pH and ORP sensors are reliable, accurate, stable, and give exceptionally long life (even in harsh petrochemical applications, probes can be expected to last 5 times longer than conventional designs) providing real savings in maintenance costs while dramatically increasing process quality.


Advantages of Refex non-porous sensors:

  • Resistant to fouling and poisoning
  • Protected Ag/AgCl reference half-cell – Refex barrier/interface prevents all liquid contact/exchange.
  • Resistant to high and changing temperatures between 0 – 100°C
  • Resistant to high and changing pressures between full vacuum and 20 bar pressure.
  • Instant response to pH change
  • Constant Eo zero – no continuous drift over time
  • Long, long electrode life – many times longer than all others
  • Compatible with all standard, modern pH instruments with dual high impedance inputs
  • No diffusion potential errors in low ionic water applications
  • No KCl electrolyte loss due to dilution
  • No refilling of KCl electrolyte – sealed for life.


Refex Electrodes are manufactured in Westport in the Republic of Ireland by a highly experienced team where artisanal methods of manufacture are fused with up to date automation to ensure high quality and customer satisfaction.

The Ultimate Sensor Housing Technology from Exner!

The team at Exner Process Equipment have more experience in the field of liquid analysis sensor installation than any one else in the world. For more than 15 years, E-P-E has designed, developed and manufactured the most innovative and effective adapters, retractable housings and sensor insertion control systems available for installing process sensors such as pH/ORP, oxygen, conductivity and optical technologies into a wide range of applications across every industrial sector. Built to the highest possible quality, Exner probe housings are found in water treatment, chemical, power, food and beverage, pharmaceutical and biotech plants globally.

High Performance NIR Absorbance and Turbidity Sensors

As acknowledged experts in hygienic design, E-P-E have applied their expertise to their range of NIR process absorbance and turbidity sensors, developing instruments with no elastomer seals – the primary cause of failure and maintenance in many products – while maintaining a fully hygienic measurement solution. A truly unique approach to the design of the optical interface to the process has ensured a robust, reliable measurement with the highest repeatability and accuracy, even in the presence of large thermal changes. All Exner sensors are autoclavable and certified for use in processes requiring CIP. Exner NIR probes are completely compatible with EXtract manual and automatic retractable sensor housings. A fully automated measurement and cleaning solution can be supplied using Exner sensors, housings and controllers for processes with a tendency to coat and blind other optical sensors – a ultra-low maintenance option with the advantage of high up-time when online.

Exner Process Equipment NIR Sensors are used extensively in the food and beverage, chemical, pharmaceutical and biotech industries.

The company is ISO9000 certified and recognized as one of Germany’s TOP 100 Innovators in 2016.

Foam Detection and Control Solutions

Hycontrol have the most extensive range of aqueous and non-aqueous foam detection systems in the world. These sensors and systems are designed and manufactured to detect, analyze and process foam in virtually any process. They provide key benefits to industry:

  • Huge cost savings by reduction in anti-foam additive use
  • Increased batch size capability
  • Reduction of environmental impact
  • Significantly improved production efficiencies

Hycontrol’s foam detection products use the patented ‘Intelligent Multi-Action’

(IMA) sensor technology to detect foam. Originally developed by Shell Oil Research and Development Team. Hycontrol foam detection units will reliably detect the very lightest foam on a liquid surface, even with heavy deposits coating the measuring probe.

Hycontrol have over thirty years experience in applying level measurement solutions over a diverse range of industries, so understand the consequences of inaccurate and unreliable level systems. Each Hycontrol installation is tailored precisely to your application, providing the best engineered solution – without compromise. Hycontrols’ customer base includes water/wastewater, food & beverage, chemical, petrochemical, utilities, quarrying, mining and oil & gas.

Hycontrol Level Measurement Solutions Logo
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Foam Sensor
MultiSense Controller
DiFoam Probe
Sure sense Controller

 Precise Monitoring

 State-of-the-Art Products

 Personal Customer Service

 Fast Delivery


South Fork Instruments has been providing unique, high quality instrumentation across the Americas since 2004. Our goal is to develop long-term business relationships with our customers to provide win-win solutions through our product portfolio and dedication to support using knowledge and integrity. Integrity is key when it comes to maintaining long-term business relationships and SFI is committed to intentionally exhibit this crucial—and often rare—character quality in every aspect of our interaction with you.

Our customers trust us to deliver high‐quality products and services that provide high value, reliable solutions to their measurement needs. Contact us with your needs and experience the South Fork Instruments difference.