The products range from industry renowned barriers and isolators through to sophisticated process control products; all have been designed for the harsh environments often encountered in the process industry.
For the majority of IS applications there is a choice of either a barrier or an isolator.
Use if existing system is predominantly barriers
Use if existing system is predominantly isolators
Simple
Complex ~ lower MTBF
Versatile
Application specific
Low dissipation
High dissipation (2VA)
Loop-powered
Separate power supply
Restricted voltage available in hazardous area
Higher voltage (power) available in hazardous and safe area
Higher packing density
Lower packing density
Safety earth fundamental
Safety earth has reduced significance
Lower cost
Higher cost
Good frequency response (100KHz)
Limited frequency response
Higher accuracy and linearity (0.1%)
Lower accuracy and linearity (0.25%)
Imposes a '0' volt level on system
Complete isolation between signals
More vulnerable to lightning and other surges
Less vulnerable to lightning and other surges
Intrinsic Safety
The complete range of ground breaking Industrial Ethernet solutions including the Tofino™ Security Solution, the world's first Intrinsically Safe Power Over Ethernet POEx™ and through our relationships with industry leading manufacturers a full range of economical Ethernet products.
The high-quality HMI & on-site operating stations for industrial and Ex-endangered production areas. The modular concept consisting of intrinsically safe components and the deliberate selection of high-quality materials allow GECMA HMI to be used under the strictest of hygienic conditions as well as in aggressive production environments. Even under temperature conditions of -30°C to +60°C there is no functional impairment.
Send to a friend
Print page