maintenance training course
DESCRIPTION
Maintenance Training Course. Course Overview. Itemiser 3 Overview Log On and Calibration Menu Options Maintenance Conclusion. Samples are collected with the sample traps and then vaporized by the desorber - PowerPoint PPT PresentationTRANSCRIPT
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Maintenance Training CourseMaintenance Training Course
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Course Overview
• Itemiser3 Overview
• Log On and Calibration
• Menu Options
• Maintenance
• Conclusion
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• Samples are collected with the sample traps and then vaporized by the desorber
• The vaporized molecules then pass through the semi-permeable membrane and into the detector
• The molecules are ionized so that they can be mobilized through the detector by an electric field
• The length of time it takes a substance to pass through the detector is known as its “time of flight”
• Light ions travel faster than heavier ions
Overview
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Detector Schematic
Overview
Desorber
Detector Pump
Sample Pump
Regenerative Dryers
Signal Processing
Dopant
(low energy beta) 63NI
Electrodes
Semi-permeable membrane
Sample Filter
Pre-amplifier
Collector
Display
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Why Maintenance is Necessary
• Optimize system performance
• Keeps the sample and detector tubing clear of contamination
• Prevents nuisance alarms
• Minimize down time
• Reduce maintenance and repair costs
Overview
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Supervisor default pin number is 5 5 5 5. Maintenance pin number is 9 9 9 9.
Log On and Calibration
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Calibration Methods
Log On and Calibration
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Log On and Calibration
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Select TNT and insert the calibration trap.
Log On and Calibration
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Log On and Calibration
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• Options
• Substances
• Config/Notes
• History
• Status
• Advanced Menu
• Burn in Membrane
Menu Options
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A timed calibration warning may be set in this box.
Menu Options
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Substances levels are set at the factory.
Menu Options
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Menu Options
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Menu Options
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Menu Options
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Menu Options
Advanced Menu Functions
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MaintenanceSaying yes to “Burn in Membrane” results in a four hour period of raised temperature that burns off any contaminants that may have been introduced with the installation of a new membrane.
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Shift Maintenance
Calibrate Check printer paper
Clean the unit and work area with alcohol
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Weekly Maintenance
Check Sample and Detector flow
@ 200 cc/min
Verify nozzle flowIs approximately 0.2 SCFH
(With unit powered-on)
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Weekly Maintenance
Clean desorber unit Inspect sample filter Clean sample air lines
Clean the membrane Inspect dopant Inspect fan filter
(With unit powered-off and wearing gloves)
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Monthly Maintenance(With unit powered-off and wearing gloves)
Change the membrane
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Conclusion
• Itemiser3 Overview
• Log On and Calibration
• Menu Options
• Maintenance
• Questions?