Transcript Slides-IT2-OperMaintenance4-14-02

Introduction
Itemiser2 Maintenance Course
Objectives







Trace Detection
ITEMISER2 Overview
Log-on and Calibration
Shift Maintenance
Weekly Maintenance
Monthly Maintenance
Questions and Comments
Trace Detection
 Traces are microscopic
amounts of particles and vapor
 Traces are transferred to
objects and people
 The Itemiser2 can detect traces
to a billionth of a gram, or, a
grain of salt cut into 1000
pieces
Trace Detection
Itemiser2 Sampling Demonstration
Trace Detection
Review
 What are explosive traces?
 How are explosive traces
transferred?
 How can you describe a
billionth of a gram?
 How do you know when the
Itemiser2 detects explosive
traces?
Itemiser2 Overview
Sample Trap Holder
Display Screen
Desorber
Printer
Itemiser2 Overview
Status Indicator
Function
Buttons
List of
Substances
Select Scan Display Screen
Software Version
Itemiser2 Overview
Plasmagram
Substance
List
Plasmagram Display Screen
Itemiser2 Overview
Review
 Which Itemiser2 component
heats the sampling trap?
 Which display screen highlights
a detected substance in red?
 What do the colors of the status
indicator mean?
 Which display screen shows a
snapshot of the last sample?
 How can you tell which version
of software you are running?
Log-on and Calibration
Log-on Demonstration
Log-on and Calibration
What is Calibration?
 Calibration introduces a
known substance into
the system.
 After the Itemiser2
identifies the substance,
the software adjusts the
positions for all the other
programmed substances.
 Calibration can be
affected by changes in
temperature,
atmospheric pressure,
and humidity.
Log-on and Calibration
Calibration Demonstration
Log-on and Calibration
Review
 What are the different log-on
numbers and their levels?
 Why do you calibrate the
Itemiser2?
 Which traps do you use to
calibrate the Itemiser2?
 The calibration peak is normally
found between which two
numbers?
 How often should you calibrate
the Itemiser2?
Shift Maintenance
 Calibrate
 Clean Fan Filter
 Check Printer Paper
 Check Supplies
 Decontaminate Work Area
 Record keeping
Shift Maintenance
Shift Maintenance Demonstration
Weekly Maintenance
 Perform Shift Maintenance
 Power Down Unit
 Clean Desorber
 Inspect Filter
 Clean Sample Air Line
 Clean Membrane
 Calibrate
 Record keeping
Weekly Maintenance
Weekly Maintenance Demonstration
Monthly Maintenance
 Power Down Unit
 Perform Weekly Maintenance
 Change Dryer
 Inspect Dopant
 Change Membrane
 Calibrate
 Record keeping
Monthly Maintenance
Monthly Maintenance Demonstration
Course Review







Trace Detection
ITEMISER2 Overview
Log-on and Calibration
Shift Maintenance
Weekly Maintenance
Monthly Maintenance
Questions and Comments
Detector Schematic