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Demark International
8 Palmiet Avenue, Weltevreden Park, Roodepoort
Core business offering: Suppliers of a full range of industrial sensors, explosion-proof high-temperature sensors, low-temperature sensors, beams, long-range and ultrasonic sensors, temperature controllers, timers and counters, electric solenoids to solid state relays, single-phase and three-phase SSR relays and wire-saving link systems.
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Section - Process Control & Manufacturing Technologies
-Flowmeters (type)
- Positive displacement
-Monitors/indicators
-Regulators
-Switches
-Fibre-optic
-Float-operated
-Optical, laser
-Pressure/hydrostatic
-Thermistor / thermal
-Ultrasonic
-Controllers/logic devices
-Differential pressure transducers
-Pressure gauges/indicators
-Pressure switches
-Regulators
- Self-acting back pressure
- Self-acting pressure reducing
-Colour mark
-Edge detection
-Hot metal
-Inductive
-Infrared
-Laser
-Machine guard
-Magnetic
-Photoelectric
-Ultrasonic
-Acoustic
-Fibre-optic
-Flow
-Hole/tear
-Humidity
-Level
-Metal detectors
-Moisture
-Other
-Presence
-Thickness
-Counters
- Handheld tally
- Mechanical
- Panel mount
- Rail mount
-Timers
- Analog
- Digital
- Panel mount
- Rail mount
Section - Test, Measurement & Calibration
-Analysers
- Colorimetric
-Pressure simulators/calibrators
-Coating thickness
-Humidity
-Moisture content
-Thickness, wall, plating
Industry news: |
Case History 200: The final case history – desuperheater control problem.
November 2025, Fieldbus & Industrial Networking, Editor's Choice, Michael Brown Control Engineering
For this final article I have chosen to relate a problem that existed in a desuperheater temperature control on a boiler in a petrochemical refinery.
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15 futureproof technical jobs with strong prospects for the future
November 2025, News
The future of work in South Africa is set to be shaped by rising demand for professionals offering a strong blend of technical skills, business acumen and digital fluency. |
Leaders in sensor technology
November 2025, Sensors & Transducers
A new addition to the Telco Sensors range is the adjustable Proximity sensor, with a range up to 5 metres. |
Industrial valve solutions
November 2025, Valves, Actuators & Pump Control, Bearing Man Group t/a BMG
BMG’s Fluid Technology division supplies and supports an extensive range of components for fluid technology systems. These include valves, hydraulic hoses and fittings, accumulators, cylinders, heat exchangers, hydraulic motors and hydraulic plumbing, as well as pumps and reservoir accessories. |
ABB drives rail modernisation and EV growth in South Africa
November 2025, Electrical Power & Protection
ABB’s work in Africa in low- and medium-voltage infrastructure, safety-critical components and electrification puts it at the heart of accomplishing the Southern African Railways Association’s strategy. |
Liquid cooling solutions for hyperscale data centre environments
November 2025, IT in Manufacturing, Schneider Electric South Africa
Schneider Electric has unveiled its world-leading portfolio of end-to-end liquid cooling solutions for hyperscale, colocation and high-density data centre environments, engineered to enable the AI factories of the future. |
Making autonomous supply chains real
November 2025, IT in Manufacturing
If your supply chain still depends on people chasing spreadsheets and calling warehouses while reacting to crises, it is not only inefficient it is a liability. The era of reactive, manually managed supply chains is over. |
SKF and Sieb & Meyer announce strategic partnership for magnetic bearings
November 2025, Motion Control & Drives, SKF South Africa
SKF has announced a strategic partnership with Sieb & Meyer, a renowned expert in variable frequency drives and control electronics. |
| visit www.instrumentation.co.za |
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