Intrinsically Safe Product Design Part 4: Role of the Nationally Recognized Test Laboratory (NRTL)

Part 1 of this series introduced the concept of intrinsically safe design for explosive environments. Part 2 described considerations for the definition of explosive environments and how geographic regions for device use can impact both explosive atmosphere characterization and product implementation. Part 3 describes regulatory and quality requirements for ongoing production and sale of an intrinsically safe electronic […]

Read more

Intrinsically Safe Product Design Part 3: Production Quality Requirements

Part 1 of this series introduced the concept of intrinsically safe design for explosive environments. Part 2 described considerations for the definition of explosive environments and how geographic regions for device use can impact both explosive atmosphere characterization and product implementation. This blog describes regulatory and quality requirements for ongoing production and sale of an […]

Read more

Intrinsically Safe Product Design, Part 2: Defining the Hazardous Location Environment

Part 1 of this blog series introduced the concept of intrinsic safety. Part 2 describes the characterization of hazardous environments with respect to intrinsically safe electronic devices. Internationally, the International Electrotechnical Commission (IEC) is considered to be a benchmark in the definition of explosive atmospheres and certification of electrical equipment for explosive atmospheres via its IECEx […]

Read more

Intrinsically Safe Product Design, Part 1: Introduction to Intrinsic Safety

InHand Electronics designs and manufactures portable and handheld electronic devices that must have inherently low-power operation and high computational performance. One application area for which InHand designs and delivers electronic devices is intrinsic safety. Intrinsically safe (IS) product is designed to operate in hazardous areas, such as explosive environments, by limiting the energy available for […]

Read more

Designing an Intrinsically Safe Handheld Device: A Multi-Disciplined Approach

InHand Electronics designs and manufactures portable and handheld electronic devices, specializing in product that inherently requires low-power operation, user interaction, and high computational performance. Particularly challenging is an application area known as intrinsic safety (IS). An intrinsically safe product  is designed to operate in hazardous, potentially explosive areas by limiting the energy available for ignition of […]

Read more