Stereo Doppler Microwave sensor in Explosion-proof housing
RELIABILITY : Ideal for highly sensitive sites and applications – conforms to various hazardous site Class requirements – see below
PERFORMANCE : High performance digital signal processing and adaptive circuitry facilitates high reliability and performance
INNOVATION : PROTECH’s unique proprietary “Stereo Doppler” technology enables false-alarm-free performance over a wide variety of applications
The PIRAMID SDI-77XL2-EX (Stereo Doppler Motion Detection Sensor) was developed to protect hazardous sites with the presence of flammable gases or vapors, combustible dusts or easily ignitable fibers or flying particles. The SDI-77XL2-EX electronic assembly is configured to be easily inserted into a special explosion-proof enclosure. The sensor is suitable for application in Hazardous Locations under the following classifications:
Class I, Div. 1 & 2, Groups C,D
Class II, Div. 1 & 2, Groups EFG
Class III – NEMA 7CD, (EFG)
Also available for applications outside North America is PIRAMID ATEX, compliant with the Standard ATEX 94/9 EC – EN 50014 -18. PIRAMID ATEX is suitable for sensitive sites classed Zone 1 and 2 for flammable gases and Zone 21 and 22 for combustible dusts.
The Stereo Doppler technology features two receiving channels with the ability to eliminate vibration and randomly moving objects as sources of unwanted alarms.
The PIRAMID EX is suitable for installation at petroleum refineries, chemical and petrochemical plants, storage areas and other processing facilities where hazardous substances are handled or stored.