Sigma projetor manual Transit Mode, Exposure Mode

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DAILY INSPECTION INSTRUCTIONS

Transit Mode

Rotating the handle of the remote control crank in the EXPOSE direction (counter-clockwise) moves the source assembly out of the shielded position in the exposure device and into the source guide tubes (projection sheaths). (See figure 3.3)

The source assembly is under positive mechanical control using the remote control crank. The remote controls may be fitted with an odometer to provide an indication of the sealed source’s position. The odometer reading should never be a substitute for the requirement and proper use of a radiation survey meter.

Source Assembly

Control Cable

Exposure Device

Sealed Source

Remote

Locking

Shield

Outlet Port

Source Guide

Control Crank

Mechanism

 

 

Tubes

Figure 3.3 Sealed source in transit mode

Exposure Mode

When the source assembly reaches the exposure head at the radiographic working position, the odometer will indicate (in feet and tenths of a foot) the approximate distance the sealed source has traveled. (See figure 3.4)

To return the source assembly to the exposure device the crank handle is rotated in the

RETRACT direction (clockwise). When the source assembly is returned to the fully shielded position within the exposure device, the locking mechanism automatically secures the source assembly. The automatic securing mechanism will not permit exposure of the source assembly unless the radiographer pushes the lock slide into the expose position.

The remote controls cannot be disconnected from the source assembly unless the source assembly is fully retracted into the shielded position in the exposure device.

The system is designed for safe and reliable operation provided the system is properly used and maintained.

3.4

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Contents Operating and Maintenance Manual MAN-027-MayTime Page Front View Exposure Device Description Model 880 Sigma authorized contents Standard Source AssemblyModel 880 Delta authorized contents ApplicationsSource output Model 880 Elite authorized contentsModel 880 Omega authorized contents Selected attenuation dataSource Guide Tube Extension Control Specifications Complete Remote Control AssembliesSource Guide Tube with source stop Weight of Depleted Uranium Shield Exposure Device Specifications Manufacturer LengthWeight of Exposure Device Type BU Certification Primary Application WidthSource Assembly Maintenance RequirementsDevice Operating Temperature Range ConstructionWarranty and Limitation of Liability Distance Job site safety precautions InstrumentsRestricted Area ShieldingExposure Device Survey Source Guide Tube projection sheath LayoutSimultaneously pull and rotate Remote Control Conduit Layout Unlock the plunger lock with the key Important Warning Checks Before Exposure of the Source 1Unlocking Projecting Locking the Exposure Device RetractingConfirmatory Survey Surveying Dismantling equipment Remote control unitSource guide tubes StorageOperational Features Source Assembly IntroductionSource assembly and remote control cable connectors Exposure DeviceDaily Inspection Instructions Transit Mode Exposure ModeDaily Inspection of the System Daily Inspection of the Exposure DeviceDaily Inspection of the Remote Controls Daily Inspection of the Source Guide TubesRemote Control Inspection Important WarningControl Conduit Inspection Control Cable InspectionImportant Reminder Maintenance Instructions Routine Quarterly Maintenance Requirements Remote Controls Radiographic Exposure DeviceMisconnect Test Routine Quarterly Maintenance Records Annual Maintenance RequirementsLeak Testing Leak Test of the Radioactive Sealed Source Leak Test for Depleted Uranium DUAnnual Maintenance for the Model 880 Series Exposure Devices Model 880 Series Annual Maintenance Requirements Maintenance Instructions Maintenance Instructions Maintenance Instructions Annual Maintenance for the Remote Controls Remote Control Maintenance RequirementsMaintenance Instructions Maintenance Instructions Re-assembly of the Remote Control Unit Quarterly and Annual Maintenance for Source Guide Tubes Source Guide Tube MaintenanceMaintenance Instructions Annual Maintenance Records Considerations of Safety Class a ItemsRear Plate Assembly Rear Plate Assembly Front Plate Assembly Front Plate Assembly Control Assemblies Source Guide Tubes Control Assemblies 222 Transport Package Sample Transportation InstructionsReceipt of Radioactive Material Shipment of Radioactive Material Maximum Radiation Sample Transportation Instructions Sample Transportation Instructions Shipment of Empty Uranium Shielded Containers Sample Transportation Instructions Carriage of Radioactive Material Sample Transportation Instructions Radioactive material transport checklist Apparatus for industrial gamma radiography Area alarmAlarm ratemeter Automatic securing mechanismLocked position Remote controlExposure head Maximum ratingWorking position Source holderSource changers Emergencies TrainingEU Regulations Access to Restricted AreasUnited States Regulations Personnel MonitoringDisposal Abc