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Oakleaf Investment Holdings 52 (OIH)
Unit C5, The Palisades, 39 Kelly Road, Jet Park
Core business offering: Supplier of field instrumentation in the southern African market. The company represents branded, global manufacturers of shut-off, pressure and flow control valves, gas and moisture analyser systems, liquid analysers, and dust and gas explosion protection systems. Calibration, test and measurement equipment also supplied.
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| Bemet |
Cape Town
tel: +27 82 553 6058
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| NIC Natal |
Durban
tel: +27 31 277 2200
fax: +27 86 6708 185
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Section - Data Acquisition & Remote Control
-Ethernet-based systems
-In-transit temperature/event
-Machine health monitoring
-PC based data acquisition
- distributed data acquisition
- presentation/analysis software
-Portable data collection terminal
-Recorders
- chart paper
- circular chart
- strip chart
-Standalone data loggers
-Anemometers
-Barometers
-Hygrometers
-Meteorological instrumentation
-Monitors
- air quality
- chlorine
- corrosion
- density
- dust
- flame
- gas
- moisture
- radiation
- vibration
- water quality
-Sampling equipment
- gases
- liquids
- solids
-Cable telemetry
- Ethernet LAN
-Remote sensing & control
- from rotating shaft
Section - Maintenance, Reliability & Asset Optimisation
-Handheld/portable
- Angular alignment
- Hardwired point-to-point device calibrator/configurator
- Hardwired point-to-point HART device calibrator/configurator
- Hardwired point-to-point Profibus device calibrator/configurator
- Linear alignment
- Network capable HART device calibrator/configurator
- Network capable Profibus device calibrator/configurator
- Network capable proprietary device calibrator/configurator
- Other
- Wireless HART device calibrator/configurator
- Wireless Profibus device calibrator/configurator
- Wireless proprietary device calibrator/configurator
-In-stream/in situ
- Pneumatic air filtration/conditioning
-Out-of-stream/ex situ
- Pneumatic air filtration/conditioning
-In-stream/in situ
- Bearing
- Linear alignment
- Pneumatic air
- Thermal imaging/thermography
- Valve stroke testing
- Vibration/balance
-Sampling/ex situ
- Particle size
- pH
-Bench
- Instrument power supply
-Handheld/portable
- Data-logger
- Multimeter
- Thermometer
- Vibration/balance
-Condition monitoring
- Remote site condition monitoring
-Consulting
- Technical
-Education & training
- Computer-based
- Instructor-led
-Installation
- Alignment
- Balancing
-Maintenance
- Calibration
- Hardware repair
- Maintenance
- Predictive maintenance
- Site-embedded maintenance
-Optimisation
- Energy
-Performance monitoring
- Energy
- Installation
- Lubrication
- Process/production
-Asset related
- Asset management software for intellectual assets (engineering related)
- Spares inventory management
-Calibration, configuration & adjustment
- Networkable HART device calibration/configuration
- Networkable Profibus device calibration/configuration
- Networkable proprietary device calibration/configuration
- Point-to-point HART device calibration/configuration
- Point-to-point Profibus device calibration/configuration
- Point-to-point proprietary device calibration/configuration
- Wireless HART device calibration/configuration
- Wireless Profibus device calibration/configuration
- Wireless proprietary device calibration/configuration
-Education & training
- Competency-based learning
- Simulation for training
-Maintenance
- Planning & scheduling
- Predictive maintenance
- Preventive maintenance
-Optimisation & efficiency
- Asset optimisation
- Energy optimisation
- Maintenance optimisation
Section - Miscellaneous Hardware
-Instrument power supplies
-Uninterruptible power supplies
-Boxes - electronics
- Plastic construction
-Cabinets
- Explosion protected
- Free-standing
- Wall mount
-Canopies
-Enclosures (special)
- Corrosion proof
- Environmentally protected
-Pole mount accessories
-Pole mount accessories (stainless steel)
-Thermal control
- Fans, blowers
-Reed relays
- Dry-contact
-Relays
- DIN-rail mount
- General purpose, control
- Time delay
-Switches
- Intrinsically safe
-Audible alarms
- Bells
- Horns, sirens
- Programmable voice annunciators
-Compressor anti-surge
-Safety limit switches
-Smoke/fire detection
-Visible alarms
- Annunciator displays
- Indicator lights
- LED
Section - Networks for Communication & Control
-ISA100
- field devices - actuators
- field devices - controllers
- field devices - transmitters
- portable devices
-WirelessHART
- field devices - actuators
- field devices - adaptors
- field devices - controllers
- field devices - transmitters
Section - Process Control & Manufacturing Technologies
-Electric
-Emergency shutdown
-Hydraulic
-Limit switches
-Partial stroke testing devices
-Pneumatic
-Valve position transmitters
- Valve positioners
-Control valves (applications)
- Cryogenic
- Globe - sanitary
- Hygienic
- Pump protection
- Re-circulating
- Safety release
- Severe service/harsh application valves
- Slurry control
- Steam conditioning
- Steam de-superheaters
-Control valves (type)
- Ball
- Butterfly
-Eccentric plug
-Expanding plug
-Globe
- double seated
- split-body
- three-way
-Lined valves
-Manifolds
-Rotary control valves
-Shut tight valves
-Sliding/knife gate
-Solenoid
-Communications
- Fieldbus
- RS232
- RS422/RS485
-Functionality
- Auto/self tuning
- Logic
- Maths/calculations
- PID/PD
- Ratio control
- Scaling of I/O
-Inputs
- 0/4-20mA
- mV/V
- RTD
- Thermocouple
-Number of loops
- >16
- 1-16
-Outputs
- 0/4-20 mA
- 0-5V
- mA/mV
- Pulse
- Relay contact
-Panel size (mm)
- 48x48
- 48x96
- 72x72
- 96x96
-Visual display
-Flowmeters (application)
- Batching
- Partially filled pipes/channels
-Flowmeters (type)
- Clamp-on, non-invasive
- Coriolis
- Custody transfer
- Differential pressure (DP)
- Doppler ultrasonic
- Magnetic/electromagnetic
- Mass
- Open channel, flume, weir
- Orifice plate, flow nozzle
- Pelton wheel
- Pitot tube
- Positive displacement
- Solids
- Thermal dispersion/calorific
- Turbine
- Variable area
- Venturi tube
- V-notch
- Vortex
- Wedge
-Monitors/indicators
-Pipeline monitors
-Potable water meters
-Regulators
-Switches
-Totalisers and correlators
-Explosion proof
-Fire detection & extinguishing equipment
-Flameproof
-Gas detection
-Intrinsic safety
- 3.5 & 4.5 digit indicators
- 4-20 mA set-point stations
- Batch controllers
- Flashing beacons
- Isolating interface units
- Multiplexers
- Sensors
- Solenoid valves
- Totalisers
- Transmitters - flow
- Transmitters - level
- Transmitters - pressure
- Transmitters - temperature
- Valve positioners
-Pressurisation
-Boiler sight glasses
-Capacitive & conductive
-Float-operated
-Microwave, guided & radar
-Pressure/hydrostatic
-Rotary paddle
-Tank gauging
-Thermistor / thermal
-Tilt switch
-Ultrasonic
-Vibrating fork
-Automatic dispensing systems
-Batching
-Blending
-Coriolis
-Density
-Alarm indicators
-Analog panel meters
-Annunciator panels
-Digital panel meters
-Digital process indicators
-Displays
- LCD, flat-panel
- Programmable message
-Handheld terminals
-Actuators
- Linear
- Rotary
-Air dryers
-Controllers/logic devices
-Cylinders
- Double acting
- Positioners
-Filters
-Pressure/vacuum switches
-Tubes & fittings
-Valves
- Check
- Flow
- Gauge
- Isolation
- Manifolds
- Pressure
-Control transducers
- Displacement/position transducers
-Differential pressure transducers
-Instrument manifolds
-Manometers
-Pressure gauges/indicators
-Pressure switches
-Pressure-electrical transducers
-Regulators
- Pilot operated pressure reducing
- Rupture disk
- Self-acting back pressure
- Self-acting pressure reducing
-Capacitive
-Inductive
-Infrared
-Laser
-Limit switch
-Magnetic
-Ultrasonic
-Current
-Density
-Displacement
-Flow
-Gas
-Humidity
-Interface in solids/liquids
-Level
-Mass
-Moisture
-Other
-Radiation
-Thickness
-Vibration
-Converters
- A-D
- D-A
- I-P, P-I
- mV/current
- Power (VAR, F, kWh, etc.)
- Programmable
-Isolators
-Multiplexers
-Root extractors
-Heat flow monitors
-Infrared (IR) line scan
-IR non-contact
-IR thermal imaging
-Panel-mount indicators
-Pyrometers (IR non-contact)
-RTDs (Pt 100, Ni)
-Temperature switches
-Thermocouple reference units
-Thermocouples (Type S, T, etc)
-Thermowells
-Conductivity
-Control signal
-Differential pressure
-Flow
-Frequency
-Gas
-Humidity
-Level
-pH
-Pneumatic
-Pressure
-Resistance
-Temperature
-Universal, programmable
-Vibration
-Wireless
Section - Services & Systems
-Consulting engineers
- Project management
- Systems specification
-Contractors
- Factory automation
- Maintenance
- Process control
- System wiring/installation
-System integration/consulting
- Materials handling
- Process control
- Telemetry
Section - Test, Measurement & Calibration
-Analysers
- Ash content
- Boiler feed water
- Carbon concentration
- Chlorine
- Colorimetric
- Combustion
- Density
- Dissolved oxygen
- Flotation froth
- Flue gas
- Gas
- Gaseous contaminants
- Hydrocarbon
- On-line process
- Oxygen
- Particles
- Suspended solids
- Viscosity
-Chambers (environmental/temperature)
-Conductivity
-ORP
-pH
-pH handheld
-Pyrometers
-Redox measurement
-Sampling equipment
- Gases
- Liquids
-Turbidity meters
-0/4-20 mA loop simulators/calibrators
-Calibration services (SANAS accredited, etc.)
-Deadweight testers
-Documenting process calibrators
-Flow calibrators
-Frequency, time simulators/calibrators
-Loop optimisation analysers & software
-mV simulators/calibrators
-Power, energy calibrators
-Pressure simulators/calibrators
-Reference materials (certified)
-RTD simulators/calibrators
-Temperature (dry block)
-Temperature baths
-Thermistor simulators
-Thermocouple simulators
-Density
-Dust level
-Humidity
-Moisture content
-Thermal imaging
-Vibration/machine health
- Non-contact/ultrasonic
- Physical contact
| News from Oakleaf Investment Holdings 52 (OIH): |
TDR-based emulsion detector
September 2022, Level Measurement & Control, Oakleaf Investment Holdings 52 (OIH)
The Genesis Model ED1, like other Magnetrol devices, is designed to maximise ease of wiring, configuration and viewing of the versatile graphic LCD display.
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Next-generation magnetostrictive level transmitter
July 2016, Level Measurement & Control, Oakleaf Investment Holdings 52 (OIH)
Magnetrol International has announced the release of the Jupiter Model JM4 magnetostrictive level transmitter. The JM4 is available as a direct insertion option, as well as an external mount on any Magnetrol ... |
Magnetrol’s non-contacting radar transmitter
July 2016, Level Measurement & Control, Oakleaf Investment Holdings 52 (OIH)
Magnetrol International has launched the Pulsar Model R96 non-contacting radar (NCR) transmitter for accurate, reliable level control in process applications. Virtually unaffected by the presence of vapours ... |
Industry news: |
South African paper producer partners with ABB
April 2026, Motion Control & Drives, ABB South Africa
Neopak, a leading manufacturer of containerboard and paper products, has renewed its partnership with global technology company, ABB to upgrade the existing automation system at its Rosslyn Paper Mill in Pretoria.
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PCS Global
March 2026, System Integration & Control Systems Design
Project and industry:
PCS Global led a digital infrastructure initiative in a southern African data centre setting, aiming to merge several essential operational systems into one cohesive platform. ... |
Loop signature Part 2-3: Feedforward Control: Part 2
April 2026, Fieldbus & Industrial Networking, Editor's Choice, Michael Brown Control Engineering
Feedforward control tuning is not nearly as critical as feedback tuning, and fairly simple models are usually fine for the purpose in hand. |
Real-time modelling for a resilient, bi-directional energy future
April 2026, Electrical Power & Protection, Schneider Electric South Africa
South Africa’s electrical grid is a classic example of a traditional power system, designed for one-way energy flow. This is where real-time grid modelling becomes critical. |
PCIe digitiser cards for optimal GHz signal acquisition and analysis
April 2026, Fieldbus & Industrial Networking, Vepac Electronics
The addition of two new PCIe Digitiser cards from Spectrum Instrumentation extends the company’s flagship M5i series to deliver optimal GHz signal acquisition and analysis capabilities. |
The keys to successful nuclear decommissioning
April 2026, Industrial Wireless, Omniflex Remote Monitoring Specialists
Remote monitoring specialist, Omniflex has published its latest sector overview exploring the challenges of maintaining critical alarm visibility and radiation monitoring during nuclear decommissioning. |
| visit www.instrumentation.co.za |
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