Maintenance Training Course

Maintenance Training CourseMaintenance Training Course

Course Overview

• Itemiser3 Overview

• Log On and Calibration

• Menu Options

• Maintenance

• Conclusion

• 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

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

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

Supervisor default pin number is 5 5 5 5. Maintenance pin number is 9 9 9 9.

Log On and Calibration

Calibration Methods

Log On and Calibration

Log On and Calibration

Select TNT and insert the calibration trap.

Log On and Calibration

Log On and Calibration

• Options

• Substances

• Config/Notes

• History

• Status

• Advanced Menu

• Burn in Membrane

Menu Options

A timed calibration warning may be set in this box.

Menu Options

Substances levels are set at the factory.

Menu Options

Menu Options

Menu Options

Menu Options

Menu Options

Advanced Menu Functions

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.

Shift Maintenance

Calibrate Check printer paper

Clean the unit and work area with alcohol

Weekly Maintenance

Check Sample and Detector flow

@ 200 cc/min

Verify nozzle flowIs approximately 0.2 SCFH

(With unit powered-on)

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)

Monthly Maintenance(With unit powered-off and wearing gloves)

Change the membrane

Conclusion

• Itemiser3 Overview

• Log On and Calibration

• Menu Options

• Maintenance

• Questions?