The Fumigation Monitor Company

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The Fumigation Monitor Company
Integrated Fumigation Monitoring Web Based Data
Acquisition Methyl Bromide Alternatives
Conference Surabaya, Indonesia PART 1 of 2
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  History of Fumigation Gas Monitors form Spectros Instruments     History of Fumigation Gas Monitors form Spectros Instruments     History of Fumigation Gas Monitors form Spectros Instruments  
Year Fumigation Gas Development Partners
1996 Ethylene Oxide Johnson Johnson
1998 Phosphine Lorillard RJR
2004 Sulfuryl Fluoride Dow Chemical
2005 Methyl Bromide USDA APPROVED
2009 Ethanedinitrile Linde
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Fumigation Gas Monitors Fumigation Gas Monitors
Methyl Bromide Delivered
Phosphine Delivered
Sulfuryl Fluoride Delivered
Ethanedinitrile (Cyanogen) Delivered
Ethylene Oxide Delivered

Ethyl Formate Evaluated
Hydrocyanic Acid Evaluated
Formaldehyde Evaluated
Ethyl Formate Evaluated
MITC Evaluated
Dichloroprene Evaluated
Propylene Oxide Evaluated
Methyl Iodide Evaluated
Chloropicrin Evaluated
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Fumigant Infrared Spectra Unique Fingerprint
for Real Answers
SO2F2
CH3Br
PH3
CO2
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How Does Spectros Instruments Measure
Concentrations?
Beers Law A?LC
Absolute Laws of Physics

• A Absorbance
• log(Io/I)
• ? Absorptivity
• Is a constant
• L Pathlength
• Is a constant
• C Concentration
• Solve for this

Absorbance
Optical Filter
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Our Advantage Years of Continuous Use
Spectros Sensor NO GAS CONTACTLong Life There
are no moving parts .
Other Monitors Sensors contact
gasConsumedShort Life
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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 structureIS IT SEALED?
• Sorption of gas from free space onto product

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United Nations Food and Agriculture Organization
Fumigation Monitors for ISPM-15 Wood
Packaging Materials Multiple Presentations Rome,
Italy
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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
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Why Are ALL Fumigation Gas Measurements Wrong
Unless they Have Pressure, Temperature Flow
Correction?
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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

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

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Standards Supported
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Certified Calibration Verification Online/Remotely
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Diagnostic Screen
Zone length gt
Active zone, purge, or press. check gt
Modbus packet trafficappears here, whenRS485 is
enabled andactive.
IR detector output, volts
Detector noise figure gt
IR measurement units gt
Sample concentration,in IR detector (Bench)
Concentration atambient PT 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
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Spectros Instruments Monitors are calibrated to
absolute laws of physics PVnRT (Validate Any
Time) with precise molar concentrations and
compensate for ambient Pressure , Gas Flow
Temperature with onboard sensors.
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Phosphine PH3
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Electrochemical Sensor Chemical
Reaction PH34H20?H3PO48H8e- Sensor is
Consumed Cross sensitivity to other gases
.Typical interferences include CO H2 SO2
H2S CO2
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In-Transit Fumigations
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Alarm
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• NEW Handheld Phosphine Monitor
• Up to 5000PPM Reading
• NDIR Based
• Onboard Data Storage
• Unmatched Accuracy
• NDIR Technology
• Long Life Use
• Price Competitive

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Low Level Phosphine Fixed Installations
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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_at_spectrosinstruments.com