New 2-wire loop isolator for IS applications June 2002, Turck Banner Southern Africa Turck now offers the MK33-221ExO-HLi/24 V d.c. - a 2-wire loop isolator designed to energise intrinsically safe 2-wire HART-compatible transducers in a hazardous area and transmit the 4 to 20 mA signal ...
Intrinsic safety interfacing becomes streamlined June 2001, Pepperl+Fuchs The Series 2000 intrinsic safety isolation system from P&F Products was designed to make IS interfacing as convenient as possible.
Some areas of the interfacing system where the more obvious advantages ...
HART programming solution for hazardous areas April 2001 A long-standing problem has been solved with the release of field instrumentation specialist Endress+Hauser's latest addition - the RN 221 N active barrier - to its family of system components.
Historically, ...
Intrinsic safety considerations March 2001, Extech Safety Systems This article concentrates on intrinsic safety, where there tends to be more emphasis on the requirements of electrical protection and earthing
Compact IS Process Interface systems for the processing industries March 2001, Phoenix Contact The Process Interface product line from Phoenix Contact provides a system that is both tried in practice and taking the future into consideration, allowing the efficiency of interface levels in various applications to be increased through a wide variety of functionalities
Universal trip amplifiers March 2001, Pepperl+Fuchs The new universal trip amplifiers in the Pepperl + Fuchs K-System monitor up to two independent limit values and their associated hysteresis. Two independent, adjustable relay outputs enable the limit ...
SABS certified two-wire IS transmitter for petrochem February 2001, Omniflex Remote Monitoring Specialists The Omniterm two-wire transmitter manufactured by Omniflex has SABS certification for use as a barrier in hazardous area installations, effectively meaning that one product now does the job of two: a ...
Intrinsic safety considerations Feb 2000, Pepperl+Fuchs Causes of explosions
Three conditions must be present for an explosion to take place:
p Combustible material - gas, vapours, dust etc.
p Oxygen.
p Electrical or thermal energy - of sufficient value.
Intrinsic ...
Interface offers compact.intrinsically safe solutyion for process engineering Feb 2000, Phoenix Contact With the newly developed process interface product line from Phoenix Contact, which includes a base terminal block with a width of just 12,4 mm and codeable, pluggable and intrinsically safe isolation ...
Overvoltage protection of intrinsically safe circuits in hazarduos areas Feb 2000, Surge Technology The Blitzductor CT Type MD/Ex is an intrinsically safe, two-piece, surge protection device for use in 24 V circuits in hazardous areas. Locally manufactured by Surge Technology, it is designed to protect ...
New dual-function RTD transmitter for hazardous areas. Jan 2000 Turck now produces a new PT 100 RTD transmitter with intrinsically safe input circuits. The multimodul MK32 is a dual-function transmitter. It replaces the transmitter and barrier previously required ...
