MechChem Africa April 2019

⎪ Products and industry news ⎪

Legrand advanced programmable time switch technology

Legrand’s AlphaRex³ and MicroRex time switches are designed for easy program- ming and ensure high-clock precision in industrial, commercial and domestic environments. Theseanalogueanddigital timeswitch- es with advanced technology are used to switch an electric circuit on or off during a pre-programmed time period. The 24-hour and seven day time switches for DIN rail and wall mounting devices also have an automatic return facility and a permanent forced switching on or off override control for increased safety and user convenience. Programming with clock precision to the second is controlled directly on the time switch, or outside the distribution board using a computer and Legrand’s AlphaSoft programming software. Other features include an EEPROM memory, which prevents settings being lost and the facility to program the clock prior to despatch. Once the unit has been pro- grammed, the information will remain in- stalled even if the switch is not connected to power. The battery can be removed Atlas Copco has launched its first-ever battery-powered LED light tower – the HiLight Z3+, with zero noise and emission capabilitiesalongsideprolongedoperating times of up to 32 hours. According to David Stanford, busi- ness line manager: portable products at Atlas Copco Power Technique, the game changing HiLight Z3+ bears testament to theevolutionary step thatAtlasCopcohas taken with battery-powered light towers. “Atlas Copco has invested extensively in R&D to ensure that the HiLight Z3+ delivers optimal performance in terms of reliability, portability, running hours, ease-of-use and lowest total cost of own- ership. It is a great example of what can be achieved with battery-operated light towers,” he notes. The HiLight Z3+ utilises lithium-ion batteries which, when compared to lead- acidandgelbatterytypes,offersupto20%

without having touninstall the time switch from the distribution board. Typical applications for this series include industrial pump stations, security alarms, indoor and outdoor lighting, air conditioners, heating and ventilation sys- tems and swimming pool heaters. These time switches are also compatible with alternative renewable energy systems such as photovoltaic panels. The units have the capability for mul- tiple programs, which ensures optimum time setting flexibility. MicroRex time switches have an LED status indicator, a precision clockwork of 0.2 s/day and are controlled by either a quartz or synchro- nous motor. The MicroRex series is designed for dependable use in many applications, including periodic lubricationofmachines or regularly repeated switching of pumps, feedconveyorsandsprinklersystems.This device is also suitable for short periods of controlled defrosting. TheAlphaRex serieshas auser-friendly standardised text guided programming facility, with a high-resolution digital

Legrand’s AlphaRex³ and MicroRex time switches with advanced technology, are used to switch an electric circuit on or off during a pre-programmed time period. AlphaRex 3 and MicroRex programmable time switches.

display and backlight. There is a standard, single data key for all devices in this range to allow quick and easy transfer of pro- grammes to other time switches and for creating back-up copies. www.legrand.co.za

Atlas Copco introduces first battery-powered LED light towers more Depth of Discharge (DoD), three times more energy density and a lifetime of 6 000 cycles that is equivalent to six timesmore than alternative technologies. It’s easy to install and connect, and features dimensions of 1160 x 1160 x 2500 mm. “Up to 22 HighLight Z3+ units can be accommodated on a 13-metre truck,” says Stanford.

Thelightissupportedbyanhydraulical- lyelevated, verticalmast, withwind-stable certification up to 80 km/h at a maximum operating height of 8mand canwithstand temperature ranges of -20 to 50 degrees. Comprising a high luminosity lamp assembly of 4 x 160 W LEDs with a life expectancy of 50 000 hours, the flood- lights deliver ideal light distribution over a 3000 m 2 illumination area through specially designeddirectional glass optics. Powering running times of up to 32 hours and requiringa charging timeof only

six hours directly from auxiliary, grid or portable generator supply units, the reli- able light tower provides customers with peace of mind in the knowledge that their operations cancontinuewell into thenight without standstill due to poor lighting. www.atlascopcogroup.com

April 2019 • MechChem Africa ¦ 37