Intrinsically safe flow-meter LITRE METER
There are two methods for the safe installation of flowmeters in hazardous areas. Either the electronics must be housed in heavy flame-proof enclosure with expensive armoured cable connections (Eexd/Flameproof) or the electronics can be intrinsically safe (IS). The preferable approach is that the flowmeter is intrinsically safe and is not capable of igniting volatile gases. A normal low-cost, non-armoured cable is used to connect the flow-meter to the safe environment where isolator barrier devices are installed. These devices limit the energy passing to the IS transmitter electronics.
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