TM001038 Revision 2TM001038 Revision 2

Preventive Maintenance Course

TM001038 Revision 2

• Inventory

• Theory of Operation

• Calibration/Verification

• Preventive Maintenance

• Changing HV Module

Course Overview

TM001038 Revision 2

Inventory

TM001038 Revision 2

Mode ModuleTraps

Inventory

Sample Wand

Sample, Verification, and Calibration Traps

TM001038 Revision 2

Power Supply and Vehicle Adapter Batteries and Charger

Inventory

Extended Life Battery Alice Harness

TM001038 Revision 2

Canned AirAlcohol Swabs

Dryer

MembranesDopant

Spares

Maintenance Kit

Inventory

TM001038 Revision 2

Inventory

Customer Service• USA – 866-517-5580 (0830 to 1700 Eastern Time)

Technical Service• USA – 800-856-1716 (24 Hours)

TM001038 Revision 2

Inventory

• How many 90-minute batteries come with the VT2?

• How do you know when a battery is fully charged?

• What power options are there for the VT2?

• How many mode modules arrive with the VT2?

Review

TM001038 Revision 2

Theory of Operation

TM001038 Revision 2

ITMS Detector Schematic

Theory of OperationBasics of ITMS

TM001038 Revision 2

Detector Schematic

Dryer

Desorber

Display Screen

Dopant

Membrane

Theory of Operation

TM001038 Revision 2

Calibration/Verification

TM001038 Revision 2

• Known substances introduced to detector

• Software adjusts positions of all substances based on calibrants’ position

• Must be calibrated for accurate detection at current location

Calibration/Verification Why calibrate

TM001038 Revision 2

Cal Required Prompt• Power up• Changing modes• Changing methods

Recommended Calibration• At the beginning of each

shift• Significant Location

change• Atmospheric conditions

change• When in doubt

When to calibrate

Calibration/Verification

TM001038 Revision 2

Press to open Menu 1

CAL REQUIRED

TNT _ _NIT _ _RDX _ _PET _ _HMX _ _AM _ _

Calibration/Verification Particle Method Calibration

TM001038 Revision 2

Use to highlight CAL, , then press

MENU 1 SELECT SUBSTANCEBEEPER OFFLIGHT ONMETHOD VAP

INT

ON

EXT

Calibration/Verification Particle Method Calibration

PARTOFF

ON

CAL

15:13

TM001038 Revision 2

INSERT CAL TRAP TIME STD LAST 6.169 6.134

-MENU- TO EXIT

-START- TO CAL

Insert calibration trap into Desorber and then press

Calibration/Verification Particle Method Calibration

TM001038 Revision 2

Press to accept the highlighted peak.

STD 6.16 LAST 6.13 HEIGHT TIME

-ENTER- TO ACCEPTGET EXPANDED LIST

5892 6.154

Calibration/Verification Particle Method Calibration

Highlighted peak indicates selection

TM001038 Revision 2

CALIBRATION DONE

-ENTER- TO CLEAR

TO VERIFY THE CALIBRATION INSERT VERIFICATION TRAP THEN PRESS START

• When Calibration complete, insert Verification trap into Desorber and press

Calibration/VerificationParticle Method Verification

TM001038 Revision 2

VERIFY SUCCESSFUL

REMOVE TRAP AND PRESS ENTER TO CLEARDOWN

VERIFY FAILURE

REMOVE TRAP AND PRESS ENTER TO CLEARDOWN

THEN CALIBRATE AGAIN

READY P+ 10 100 1k 10kTNT --NIT --RDX --PET --HMX --AM --

• Two verification results possible

• READY screen displays after CLEARDOWN

Calibration/VerificationParticle Method Verification

TM001038 Revision 2

Press to open Menu 1

CAL REQUIRED

TNT _ _NIT _ _RDX _ _PET _ _HMX _ _AM _ _

Calibration/Verification Vapor Method Calibration

TM001038 Revision 2

MENU 1 SELECT SUBSTANCEBEEPER OFFLIGHT ONMETHOD PARTCAL EXT

ONOFF

INTVAP

Calibration/Verification

15:13

Vapor Method Calibration

CAL

Use Highlight CAL, press

TM001038 Revision 2

Press to begin Calibration

Calibration/Verification

CAL ON INTERNAL TIME STD LAST 6.934 7.04

-MENU- TO EXIT

-START- TO CAL

Vapor Method Calibration

TM001038 Revision 2

Calibration/VerificationVapor Method Calibration

STD 6.93 LAST 7.04 HEIGHT TIME

-ENTER- TO ACCEPTGET EXPANDED LIST

1558 7.037

Press to accept the highlighted peak

TM001038 Revision 2

TO VERIFY THECALIBRATION

OPEN CHECK SAMPLEAND HOLD IN

FRONT OF NOZZLEPRESS START

Calibration/VerificationVapor Method Verification

• Leave small space

TM001038 Revision 2

VERIFY SUCCESSFUL

 

 PRESS ENTER TO

CLEAR DOWN

VERIFY FAILURE

 PRESS ENTER TO

CLEAR DOWN

THEN CALIBRATE

AGAIN

Calibration/VerificationVapor Method Verification

TM001038 Revision 2

Calibration/Verification

• Why is calibration necessary?

• Which menu is used to access calibration?

• How do you verify calibration?

• When do you calibrate?

Review

TM001038 Revision 2

Preventive Maintenance

TM001038 Revision 2

• Shift

• Weekly

• Monthly

• Annual

Preventive MaintenanceMaintenance Intervals

TM001038 Revision 2

Power-down the unit Wear white cotton gloves Clean Desorber Clean membrane Calibrate

Shift MaintenancePreventive Maintenance

TM001038 Revision 2

Power-down unit Wear white cotton gloves Change dryer material Inspect dryer tube o-rings Inspect dopant levels

Weekly MaintenancePreventive Maintenance

TM001038 Revision 2

Preventive MaintenanceWeekly Maintenance

Clean the fan filter

Calibrate

TM001038 Revision 2

Power-down unit Wear white cotton gloves Perform Weekly

Maintenance Change membrane Power up unit After 4 hours, calibrate

Monthly MaintenancePreventive Maintenance

TM001038 Revision 2

Wipe around the entire nozzle area.

Wipe around the entire seam between the top and bottom housing.

Annual Maintenance - Radiation Wipe TestPreventive Maintenance

It is the Customer’s obligation to perform the annual wipe test.

TM001038 Revision 2

• When is preventive maintenance required?

• How many hours do you wait to calibrate after monthly maintenance is completed?

• What are the steps for weekly maintenance?

• Are wearing cotton gloves optional?

• How often do you need to perform a wipe test?

Preventive Maintenance

TM001038 Revision 2

Power-down the unit Remove the compartment

cover Plug in and insert the module Reinstall cover Power-on the unit Calibrate

Required for use in drug modeChanging HV Module

TM001038 Revision 2

• Inventory

• Theory of Operation

• Calibration/Verification

• Preventive Maintenance

• Changing HV Module

Course Review