Intrinsic safety is a technique for ensuring that electrical energy supplied to circuits in a hazardous area is too low to ignite volatile gases either by spark or thermal means. Intrinsically safe circuits use energy limiting devices known as intrinsically safe barriers to prevent excess electrical energy from being applied to electrical equipment located in the hazardous area.
The Quantum Intrinsically Safe family of modules are entity certified to be installed in safe areas to monitor/control intrinsically safe apparatus located In hazardous areas.
Intrinsically Safe Barriers
All Quantum Intrinsically Safe modules use galvanic isolation to provide the intrinsically safe barrier between them and the field devices located in hazardous areas. Galvanic isolation in the form of an opto-isolator and DC/DC converter is provided between the field side output circuitry and the Quantum bus circuitry. The maximum agency specified intrinsically safe parameters are:
Intrinsically Safe Power Supply
DC/DC converters in Quantum Intrinsically Safe modules provide intrinsically safe power to field devices located in hazardous areas. No external field power is required where these modules are installed.
Installation of Quantum Intrinsically Safe Modules
Quantum Intrinsically Safe modules are designed to fit into a standard 140 XBP OXX 00 Quantum rack. The modules can be installed in any slot position in the rack. (The first slot is normally reserved for the power supply module.)
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