Non-contact device provides cost-effective alternative to positioners for SIS applications SADDLE BROOK, N.J., November 13, 2006 -- Westlock Controls, a leader in providing innovative solutions for the networking, monitoring and control of process valves, today announced the introduction of the D-EPIC Control Transmitter. This 4-20 mA, HART-enabled, non-contact transmitter eliminates position blind spots during the stroke of a valve by supplying continuous feedback of either rotary or linear valve position. The D-EPIC control transmitter features an integrated, low power solenoid used to control and monitor discrete valves, as well as integrated PST functionality.
The device provides a cost-effective alternative to positioners for Safety Instrumented System (SIS) applications. Exida confirmed the D-EPIC is suitable for Safety Integrity Level 3 (SIL3) service by performing a FMEDA with calculated PFD and SFF values. Unlike conventional position transmitters, the D-EPIC senses valve position without the need for linkages, levers, or rotary and linear seals. Position sensing is performed by non-contact means via the use of an integrated Hall Effect sensor and magnet assembly. This also allows a remote sensor head assembly to be mounted up to 50 feet from the electronics enclosure.
Available in low copper content aluminum, 316 stainless steel or engineered resin enclosures, the D-EPIC is agency certified for non-incendive CID2 Groups A-G service and explosion-proof CID1 Groups B-D service with the MOD3 or 360/366 enclosures. The D-EPIC Control Transmitter is easy to set up, and calibration is via a local, non-intrusive interface and integrated LCD display or HART communicator.
About Westlock Controls
Westlock Controls, headquartered in Saddle Brook, N.J. USA, is a leader in providing innovative solutions for the networking, monitoring and control of process valves. With millions of conventional control monitors in service around the world, and an installed base of over 100,000 valves networked using its Intellis products and network engineering services, Westlock has application and field experience second to none.
