Power supply units operate in extreme conditions

Puls UK has launched two Miniline 60W power supply units, which can be used to power equipment in severe weather conditions.

The ML60 units are available in both standard and low-temperature versions.

As with other Puls power supplies, the ML60s have been tested at temperatures of up to +60C.

The low-temperature model can start and deliver full power from -40C, giving an overall operating range of 100C.

As most power supplies use satiable resistors to control inrush current, as temperatures drop the resistance increases and can reach a level where no current can flow and consequentially prevents the device from running.

Puls has developed special circuitry that both limits inrush current and obviates the need to use satiable resistors, thereby allowing the units to safely operate in extreme conditions.

Similar technology has been incorporated into Puls power supplies used at the Neumaver Station III research base in Antarctica to power outdoor monitoring equipment, including sunshine detectors and wind measurement devices.

'The new ML60 offers a solution to powering equipment in the most severe weather conditions - it's an off-the-shelf product - and, along with our new range of Atex-approved power supplies, it's available now,' said Harry Moore, managing director.

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