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39089-US-210509

Maintenance

6.2 Diagnostics

The source holder does not have any diagnostics that alert users to potential 
problems. However, emergency guidelines as outlined in the 

Radiation Safety 

Manual

 provide steps you can take for the following emergency situations:

Stuck Shutter or Inoperable Cable

Loss or Theft

Entering a Tank or Vessel

Fall, Collision, or Fire

6.3 Troubleshooting

The source holder is extremely reliable, but errors can occur during operation. 
Some of those potential problems are caused by the following:

Item

Action to Take

Abandoned or discarded 

source

In the United States, contact the U.S. NRC or an agreement 

state.

Damaged or failed 

source

Retract the capsules into the shielded position, if possible 

and contact VEGA Americas Nuclear Services.

Missing or broken lock

Do not remove the source from the crate or mount the 

source. If the source is already mounted, contact VEGA 

Americas Nuclear Services.

Shutter not locked in 

OFF position

Turn the shutter to the OFF position, if possible and contact 

VEGA Americas Nuclear Services.

Shutter or Cable/Rod not 

operating correctly

Contact VEGA Americas Nuclear Services.

Cable not operating 

correctly

Contact VEGA Americas Nuclear Services.

Source leak

Evacuate the immediate area and control entry to the area. 

Contact  VEGA Americas Nuclear Services.

Improper Handling

Contact VEGA Americas Nuclear Services.

Improper or damaged 

shielding

Contact VEGA Americas Nuclear Services.

Summary of Contents for SHLG

Page 1: ...Operating Instructions SHLG Source Holder Document ID 39089 Radiometric...

Page 2: ......

Page 3: ...ritten permission of VEGA Americas Inc The material in this document is provided for informational purposes and is subject to change without notice ISO 9001 2015 approval by Eagle Registrations Inc to...

Page 4: ...4 39089 US 210509 Revision Table NOTES...

Page 5: ...ral Safety 11 Radiation Safety 11 Applications 12 Intended Applications 12 Certifications 12 Standards 13 Safety Information for Ex Areas 13 Manufacturer s Responsibility 13 User s Responsibility 13 P...

Page 6: ...tructions 21 Preferred Orientation 21 Continuous Level 21 Point Level 22 Source Interference 22 Temperature 23 Ambient Temperature 23 Process Temperature 23 Insulation 23 Mounting Instructions 23 Moun...

Page 7: ...nside Vessels 31 Maintenance 33 Periodic Maintenance Schedule 33 Diagnostics 34 Troubleshooting 34 Spare Parts 35 Electronics 35 Equipment Repair 35 Repair Information 36 Return the Source Holder for...

Page 8: ...8 39089 US 210509 Table of Contents Accessories 44 Customer Service 45 Find Help 45 U S Canada and Worldwide 45 Necessary Information 46...

Page 9: ...roup The Operating Instructions not only provide instructions for the setup and operation of the instrument but also specifically address topics and procedures required by an intermediate level user s...

Page 10: ...a potentially hazardous situation which if not avoided may result in minor or moderate injury or in equipment damage Note Identifies tips or useful information about the instrument Radiation Introduce...

Page 11: ...ng safety regulations and accident prevention rules 2 2 Radiation Safety The radiation safety information is included as a service to you and serves as a guide only in the most general terms Regulator...

Page 12: ...or the SHLG include Chemical Petrochemical Offshore Refining 2 4 Certifications The SHLG source holder is designed for certification compliance from the following agencies AERB India CNSC Canada GOST...

Page 13: ...specific safety information for the installation and operation of the SHLG in Ex areas 2 5 Manufacturer s Responsibility VEGA source holders are designed to International standards for construction a...

Page 14: ...14 39089 US 210509 For Your Safety NOTES...

Page 15: ...n the OFF or shielded position when the source tube assembly is in the extended position These source holders are one component of a continuous or point level density or weight measuring system The SH...

Page 16: ...Source Material The source material is either Cesium 137 Cs 137 or Cobalt 60 Co 60 Beam Port The front face of the source holder is the beam port Shipping Cap The shipping cap covers the beam port dur...

Page 17: ...ve Material Label Shutter A shutter is the mechanism that opens or closes the radiation beam port Lifting Eye A lifting eye located on top of the housing helps when lifting the source holder into plac...

Page 18: ...Radiation Safety Manual for specific details Source Holder If you must package the source holder follow these steps 1 Ensure the shutter is in the OFF or CLOSED position and locked if source holder ha...

Page 19: ...he unit in a clean dry area 2 Visually inspect the source holder for damage 3 File a claim against the carrier if there was damage to the unit during shipment Make certain you report the damage in det...

Page 20: ...tion such as an agitator or a baffle is directly in the path of the radiation beam thatobstruction can shield the radiation from the detector Such an obstruction can diminish performance of the equipm...

Page 21: ...oduce new ones an erroneous gauge reading is possible For example insulation that you add after adjustment attenuates the radiation and causes the gauge to erroneously read upscale Preferred Orientati...

Page 22: ...jacent pipes vessels or conveyors have nuclear gauges you must consider the orientation of the source beams so each gauge senses radiation only from its appropriate source Placethe source holders on t...

Page 23: ...peratures may raise gauge temperatures through radiated or conducted heat transfer Use additional insulation thermal heat shields or ceramic isolation spacers to reduceheat transfer Use water cooling...

Page 24: ...nsure adequate clearance to operate shutter or cable rod mechanism 6 Consider in advance any high temperature or corrosive environmental conditions For example youshould consider the following items A...

Page 25: ...off position the void slot is perpendicular to the beam and blocks the beam from exiting the device Commission the Source Holder Before any gauge is setup and adjusted you must commission the source...

Page 26: ...r installing the source holder Source Holder Installation Requirements The following statements are important in defining the requirements for the installation of a source holder Regard each separate...

Page 27: ...tick 2 Write the source serial number or other identification on the bag 3 Open the zip top bag and grasp the swab stick by the end opposite of the fiber tip 4 Wipe the external surface of the source...

Page 28: ...includes anyone whose assigned duties require his presence in the vicinity of the source holder Complete the evaluation to determine if the limit of 5 000 mSv 500 mrem per year which would require mo...

Page 29: ...es between the OFF and ON positions 1 Use one of the two methods listed below to ensure that the shutter mechanism is operational Method A Using a calibrated portable radiation survey meter take a mea...

Page 30: ...ky shutter or a cable or rod that will not retract is a warning that the properoperation is compromised and you need to address the inoperable mechanism If the shutter or cable rod mechanism becomes i...

Page 31: ...rules and regulations You may use this documentation to meet the requirements of the U S NRC or other regulatoryagency At a minimum follow the steps listed below where applicable 1 Verify by signature...

Page 32: ...32 39089 US 210509 Operation NOTES...

Page 33: ...and labels Annually Make certain the tags and labels are in place and legible General cleanliness Annually Make certain there is no buildup of dirt or process material on operating handles or cables...

Page 34: ...or an agreement state Damaged or failed source Retract the capsules into the shielded position if possible and contact VEGA Americas Nuclear Services Missing or broken lock Do not remove the source fr...

Page 35: ...ericas Field Service Engineer ON OFF Indicator malfunctioning Contact VEGA Americas Nuclear Services Improper mounting Contact VEGA Americas Nuclear Services Improper installation Contact VEGA America...

Page 36: ...VEGA Nuclear Products Repair at 1 513 272 0131 Monday through Friday 8 00 A M to 5 00 P M EST Eastern Standard Time 2 VEGA assigns the job repair a material return authorization MRA number 3 Indicate...

Page 37: ...perform the following steps Conduct a visual inspection of the source holder Make certain the external surface is smooth and not damaged Check corroded and rusted units which have been in service und...

Page 38: ...est if shipping the unit Only a specifically licensed individual can perform the removal The specifically licensed person performing the removal must use a calibrated survey meter A radiation safety o...

Page 39: ...rmation regarding the disposal of the source The contact information for the U S and Canada is Contact Information Telephone Number Monday through Friday 8 00 A M 5 00 P M EST Eastern Standard Time 1...

Page 40: ...40 39089 US 210509 Dismounting NOTES...

Page 41: ...LG 2 1 1 TBq 30 Ci for 50 uSv 305 mm 5 mR hr 12 SHLG 3 2 TBq 54 Ci for 50 uSv 305 mm 5 mR hr 12 Maximum C0 60 Activity SHLG 1 925 MBq 25 mCi for 50 uSv 305 mm 5 mR hr 12 SHLG 2 3 15 GBq 85 mCi for 50...

Page 42: ...ed person or as specified in OAC 3701 1 46 an equivalent to 10 CFR 31 and 32 If you need to transfer the source holder to another location or dispose of the source holder specific licensees are requir...

Page 43: ...mm 8 4c SHLG 3 14 1 2 368 mm 9 5 9 16 6 mm Diameter Mounting Holes 10 6a SHLG 1 8 3 4 222 mm 11 6b SHLG 2 8 3 4 222 mm 12 6c SHLG 3 12 1 4 311 mm 13 7a SHLG 1 10 254 mm 14 7b SHLG 2 10 254 mm 15 7c S...

Page 44: ...st kit for one source holder Includes swab shipping container instructions analysis and report 229555 Signage Caution Radioactive Materials warning sign 238911 Survey Meter General purpose digital sur...

Page 45: ...mergency service telephone support available 24 hours a day Radiation survey meter calibration Wipe test and wipe test analysis Start up and commissioning Service maintenance and disposal of source ma...

Page 46: ...ailable for the Field Service Engineer or representative VEGA Customer Order C O Number Located on the engraved label on the source holder Located on one of the flat sides of the housing just below th...

Page 47: ......

Page 48: ...www vega americas com 39089 US 210509 Subject to change without prior notice Copyright 2021 VEGA Americas Inc Cincinnati Ohio USA All statements concerning scope of delivery application practical use...

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