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The Fumigation Monitor Company

The Fumigation Monitor Company. Integrated Fumigation Monitoring &Web Based Data Acquisition Methyl Bromide & Alternatives Conference Surabaya, Indonesia PART 1 of 2. Fumigant Infrared Spectra: Unique “Fingerprint” for Real Answers. SO2F2. CH3Br. PH3. CO2.

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The Fumigation Monitor Company

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  1. The Fumigation Monitor Company Integrated Fumigation Monitoring &Web Based Data Acquisition Methyl Bromide & Alternatives Conference Surabaya, Indonesia PART 1 of 2

  2. Fumigant Infrared Spectra: Unique “Fingerprint” for Real Answers SO2F2 CH3Br PH3 CO2

  3. How Does Spectros Instrument’s Measure Concentrations? • A= Absorbance • =log(Io/I) •  = Absorptivity • Is a constant • L = Pathlength • Is a constant • C = Concentration • Solve for this Beer’s LawA=LC Absolute Laws of Physics Absorbance Optical Filter

  4. Our Advantage: Years of Continuous Use Spectros Sensor =NO GAS CONTACT=Long Life There are no moving parts . Other Monitors’ Sensors contact gas=Consumed=Short Life

  5. Why Monitor a Fumigation? • Dosage is not concentration • Quality of fumigation product i.e. phosphine tablets • No reaction is 100% quantitative conversion • Leakage from the structure…IS IT SEALED? • Sorption of gas from free space onto product

  6. United Nations Food and Agriculture Organization Fumigation Monitors for ISPM-15 Wood Packaging Materials Multiple Presentations Rome, Italy

  7. Conclusion: ISPM15(I)nternational (S)tandards for (P)hytosanitary (M)easures #15. International Plant Protection Convention, a part of the United Nation's Food and Agriculture Organization.“If you are not monitoring you are not fumigating”

  8. Why Are ALL Fumigation Gas Measurements Wrong Unless they Have Pressure, Temperature & Flow Correction?

  9. Easy to Get 20-25% Total Error with Other Monitors • Different Temp and Pressure on Day of Calibration Vs. Day of USE? • a 1% error is observed for every 3C uncorrected temperature change • a fixed error of 1% for every 7.6 mm change in pressure • Errors can easily be 4 g/M3 which is 7% in a 55g/M3 fumigation. • Fumiscope and other thermoconductivity monitors will register at least • a 12 g/M3 FALSE response for every 1% of CO2 present. • Reading of higher levels than actually present leads to under-dosage • Pump draw rates change sample pressures which changes sample density. • Different sample line lengths change pump pressure changing gas density

  10. Monitor Platform • Unmatched Accuracy • Long Life Use • Modular Design • Rugged Construction • Simple Operation • Maximum Flexibility • Total Reliability • FAST PAY-BACK

  11. Standards Supported

  12. Certified Calibration Verification Online/Remotely

  13. Diagnostic Screen Zone length > Active zone, purge, or press. check > Modbus packet trafficappears here, whenRS485 is enabled andactive. IR detector output, volts Detector noise figure > IR measurement units > Sample concentration,in IR detector (Bench) Concentration atambient P&T and STP Change since last re-zero System temperatures System pressures Change since last P check Concentrationcorrection dueto temperature ClearModbus data Current fault code(Flagged with “F”) Detector compsince last zero ExitDiagscreen Initiate Purge cycle Switch to next zone 400 Series Press to storecurrent as zero Toggle pumpon/off

  14. Spectros Instruments’ Monitors are calibrated to absolute laws of physics PV=nRT(Validate Any Time) with precise molar concentrations and compensate for ambient Pressure , Gas Flow &Temperature with onboard sensors.

  15. Phosphine PH3

  16. Electrochemical Sensor Chemical Reaction PH3+4H20H3PO4+8H++8e- Sensor is Consumed Cross sensitivity to other gases .Typical interferences include CO; H2 ; SO2 ; H2S ; CO2

  17. In-Transit Fumigations

  18. Alarm

  19. NEW Handheld Phosphine Monitor • Up to 5000PPM Reading • NDIR Based • Onboard Data Storage • Unmatched Accuracy • NDIR Technology • Long Life Use • Price Competitive

  20. Low Level Phosphine Fixed Installations

  21. Thank You Dennis Glennon Ph.D. Chief Technology Officer Spectros Instruments, Inc. 17D Airport Road Hopedale, MA USA Office 508.478.1648 Direct 508.579.6301 dglennon@spectrosinstruments.com

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