1 / 8

THE LINEAR BARRIER SAFE EYE

THE LINEAR BARRIER SAFE EYE. The gas linear detection. DEFINITION. SAFE EYE is a continued and integrated detection system in order to measure gas concentration on an imaginary line that links 2 points: -the transmitter on the one hand -the receptor on the other hand

pdawn
Download Presentation

THE LINEAR BARRIER SAFE EYE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. THE LINEAR BARRIER SAFE EYE The gas linear detection

  2. DEFINITION SAFE EYE is a continued and integrated detection system in order to measure gas concentration on an imaginaryline that links 2 points: -the transmitter on the one hand -the receptor on the other hand Theory based on the BEER-LAMBERT Law: Ln I/Io=  c l

  3. SENSITIVITYexample IR BAND: Scale:0 to 2 LEL for paraffins CxHy (1< x<8) Example: 0,04% vol C3H8 over 100 m or 0,44% vol over 10 m; 4,4% vol over 1 m. UV BAND: For aromatics and H2S including the benzene, the xylene,the toluene, ammonia Scale:100 to 800 ppm.m according to the type of gas

  4. THE EMITTER Flame-proof housing with emitted UV and IR sources following a discharge from an electric arc in a gas tube 5 to 60 times per minute. Controlled flashing pulsations frequency (identification of parasitic rays )

  5. THE RECEPTOR Flame-proof casing with 2 detectors:  IR in the band 3 to 3,5 µm (paraffins)  UV in the band 0,2 to 0,3 µm (aromatics) 2 averaged signals of analysis and of reference OUTPUT: 4-20 mA, 2 relays, 1 bus RS 485

  6. CHARACTERISTICS  High sensitivity  Long range  Rapid response time  Important immunity to false alarms (sun, reflections)  Easy digital communication  Integrated automatic test  High resistance to hostile environments. Protectors.  Anti-dust screen with air flow protection ( in option)  Heating of optics  Supports 70 % of opacity  Zero and sensitivity drifting automatic compensation

  7. PROTECTORS

  8. ALIGNMENT SYSTEM

More Related