December 2017Maintenance, Test & Measurement, Calibration
Accelerometers and velocity meters are used to measure a wide range of frequencies, including low frequency vibrations found in building maintenance. They operate at less than 2 Hz, and can also be useful in monitoring bearing wear in cooling tower fans and gearboxes for example.
To characterise the performance of its low frequency sensors in that range, which is too low for most test shakers, Monitran has developed a new high displacement test rig that can generate oscillations accurately at frequencies as low as 0,2 Hz. The system allows real-time back to back testing between different devices and its own inbuilt, calibrated MEMS sensors.
The horizontal linear beam oscillator has a powerful motion control system that incorporates a precision AC servo with 17-bit encoder feedback. Running on two precision rails, it uses magnetic springs and magnetic damping to ensure smooth operation. Its software produces fast code, at 1,7 milliradians per step, which generates fine sinusoidal motion for the linear track driven by a rotary motor.
The intelligent shuttle, which can carry a sensor payload of up to 0,5 kg, incorporates seven MEMS accelerometers, signal processing and a microcontroller to monitor its motion. It also includes a mechanical low pass filter and has an operating distance of up to 1000 mm, exerting up to 8 g acceleration to the devices under test.
“The new oscillating beam rig gives us accurate extreme low frequency data and is a highly useful addition to our accelerometer test and calibration capabilities,” said Andy Anthony, Monitran’s managing director.
Modernising acid cooler protection without disrupting production Omniflex Remote Monitoring Specialists
Maintenance, Test & Measurement, Calibration
Omniflex has supplied an advanced anodic protection control system to phosphate producer Foskor, replacing a legacy transformer rectifier system while maintaining uninterrupted production. The distributed PowerView CP solution provides remote monitoring and DCS integration.
Read more...Engineering partnership delivers longer life for vibrating feeders in mining
Maintenance, Test & Measurement, Calibration
: OST-Africa’s combination of VISAM vibrating motors and advanced rubber mounting technology has helped Euro Sales achieve a 30 to 40% increase in component life on vibrating feeders at several major mining operations, with zero mount failures in the first 12 months.
Read more...When oil can’t take the heat
Maintenance, Test & Measurement, Calibration
Unlike the slow ageing of oxidation, thermal breakdown is the sudden chemical collapse of a lubricant under excessive heat. Steven Lumley of WearCheck explains how it happens, where it strikes, and how oil analysis detects it.
Read more...Mini data loggers for temperature and humidity monitoring
Maintenance, Test & Measurement, Calibration
Testo’s range of four compact data loggers covers temperature and humidity monitoring for storage, refrigeration and transport applications, with USB-C or Bluetooth connectivity and capacity for up to 16 000 readings.
Read more...Alternative fuels for cutting, brazing, soldering and heating
Maintenance, Test & Measurement, Calibration
Bolt and Engineering Distributors, as an authorised distributor for the Harris Products Group, is helping South African industries transition from acetylene to safer, more cost-effective alternative fuels for cutting, brazing, soldering and heating applications.
Read more...Rethinking corrosion protection in process plants Omniflex Remote Monitoring Specialists
Maintenance, Test & Measurement, Calibration
Remote monitoring is changing how cathodic and anodic protection systems are managed in process plants, giving operators continuous visibility of corrosion protection performance and enabling more proactive maintenance decisions.
Read more...Installation safety tester Vepac Electronics
Maintenance, Test & Measurement, Calibration
A combination measuring device for testing electrical installations, offering safety tests including RCD, voltage, loop, low-resistance, earth resistance and insulation checks via a 3,5-inch TFT colour display.
Read more...Vibration sensor with CANopen interface for mobile machines ifm - South Africa
Maintenance, Test & Measurement, Calibration
ifm’s 3-axis VMB301 condition monitoring sensor integrates into the vehicle network via CANopen, delivering real-time bearing, vibration and temperature data to help mobile machines avoid costly damage and downtime.
Read more...Linear regulated 2-channel laboratory power supply Vepac Electronics
Maintenance, Test & Measurement, Calibration
Vepac Electronics offers a dual-channel laboratory power supply built for safe, precise testing in laboratories and workshops.
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