Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Vega SHLG
Summary of Contents for Vega SHLG
- Page 1 Operating Instructions ® SHLG Source Holder Document ID: 39089 Radiometric...
-
Page 3: Revision Table
101001 Converted to VEGA style manual 210509 This document contains proprietary information of VEGA Americas, Inc. It shall not be reproduced in whole or in part, in any form, without the expressed written permission of VEGA Americas, Inc. The material in this document is provided for informational purposes and is subject to change without notice. - Page 4 Revision Table NOTES 39089-US-210509...
-
Page 5: Table Of Contents
Table of Contents Table of Contents Revision Table ....... 3 About this Document. - Page 6 Table of Contents Lifting Eye..................17 Documentation .................. 18 Storage and Handling ............. 18 Source Holder ..................18 Mounting ........19 General ...................
- Page 7 Source Disposal ................39 Supplemental Information..... 41 Specifications................. 41 Technical Data .................. 41 SHLG ....................41 Dimensions ..................43 39089-US-210509...
- Page 8 Table of Contents Accessories ................44 Customer Service......45 Find Help ................45 U.S., Canada, and Worldwide ..........
-
Page 9: About This Document
Make sure you read and understand all the instructions and safety guidelines in the Operating Instructions NOTE before operating this equipment. SHLG Figure 1.1 1.2 Targeted Group The Operating Instructions not only provide instructions for the setup and... -
Page 10: Explanation Of Symbols
About this Document 1.3 Explanation of Symbols Danger Identifies an imminently hazardous situation which, if not avoided, will result in death or injury. DANGER Warning Identifies a potentially hazardous situation which, if not avoided, could result in death or injury. WARNING Caution Identifies a potentially hazardous situation which, if not avoided,... -
Page 11: For Your Safety
For Your Safety For Your Safety 2.1 General Safety Make sure you read and understand all the instructions and safety guidelines in the Installation and Operation Guide before operating the source holder. The instructions in this guide are written for qualified and trained personnel. Your equipment requires strict observance of standard regulations and guidelines. -
Page 12: Applications
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-R - Russia • Northern Territories •... -
Page 13: Standards
For Your Safety Standards The SHLG source holder is regulated by the U.S. Nuclear Regulatory Commission (NRC). Compliance certificates are issued by the State of Ohio under an agreement with the NRC. Safety Information for Ex Areas Please note the Ex-specific safety information for the installation and operation of the SHLG in Ex areas. - Page 14 For Your Safety NOTES 39089-US-210509...
-
Page 15: Product Description
The detector correlates radiation levels to process conditions. ® The radiation beam for the SHLG source holders are controlled manually with a push/pull shutter. In the ON position, the source tube assembly is pushed down against the gasket stop with the handle. -
Page 16: Source Housing
Product Description • Direction Label • Caution-Radioactive Material Label • Shutter • Lifting • • Documentation Source Housing A welded, closed stainless steel, lead, or iron container that houses the heli-arc welded stainless steel source capsule. 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. -
Page 17: Shutter
Product Description • Date of Assay • Distributor Name Caution-Radioactive Material Label Figure 3.1 You must not remove the stainless-steel Caution-Radioactive Material Label. NOTE 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 place for installation. -
Page 18: Documentation
Product Description Documentation The documentation provided with the SHLG source holder includes some or all of the following: • Operating Instructions Manual • Quick Reference Guide • Technical Reference Manual • Radiation Safety Manual • • Safety Manual (if applicable) •... -
Page 19: Mounting
File a claim against the carrier if there was damage to the unit during shipment. Make certain you report the damage in detail. Any claims against VEGA for shortages or errors in shipment, must occur within 30 days of receipt of the shipment. -
Page 20: Location
4.3 Location At the time you ordered your equipment, VEGA sized the source holder for optimal performance for the designated application. If the location of the equipment has changed or is different from the original order, notify VEGA before installing the equipment. -
Page 21: External Obstructions
Preferred Orientation ® You can mount the SHLG on a process vessel or a process pipe. Depending upon ® the specific application, the preferred orientation for the SHLG is as follows: Continuous Level ® Mount the SHLG perpendicular to the process pipe or vessel. Use the same fasteners to temporarily attach the source carrier cover to the source holder. -
Page 22: Point Level
Point Level ® Mount the SHLG parallel to the process pipe or vessel. SHLG Point Level Orientation Figure 4.2 Source Interference When multiple adjacent 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. -
Page 23: Temperature
• Large process temperature changes may affect process densities and the radiation absorption rates and may cause erroneous readings. Consult VEGA if inaccuracies related to process temperature changes occur. • Extremely hot process temperatures may raise gauge temperatures through radiated or conducted heat transfer. Use additional insulation, thermal heat shields, or ceramic isolation spacers to reduce heat transfer. -
Page 24: Mounting Checklist
Make certain that external surfaces are not damaged. Check that the mounting position complies with the manufacturer's engineering drawings and specifications. (See certified correct drawings or contact VEGA.) Ensure adequate clearance to operate shutter or cable/rod mechanism. Consider in advance any high temperature or corrosive environmental conditions. -
Page 25: Operation
The detector correlates radiation levels to process conditions. SHLG source holders operate by rotating the cylindrical shutter over a 90° range. When the shutter is in the on position, a void slot in the shutter shielding permits the radiation beam to exit the device. -
Page 26: Normal Operation
• Do not remove the lock on the source holder. • Notify your Radiation Safety Officer or contact VEGA Americas Field Service at 1-513-272-0131 if there is damage to the source holder. 5.2 Normal Operation Before putting the source holder into operational use, be aware of the requirements for installing the source holder. -
Page 27: Preliminary Survey
If the radiation field is normal, less than 50 mSv/hr (5 mrem/hr) at 30 cm (12") for most VEGA Americas source holders, proceed with the leak test. If the radiation field is greater than 50 mSv/hr (5 mrem/hr) at 30 cm (12"), complete the following: Post restrictions of the area, if required. -
Page 28: Radiation Survey After Installation
Operation Radiation Survey after Installation Complete the survey sheets with measurements at 30 cm (12") omni- directionally to record the radiation pattern. Survey in the closed (OFF) position and then in the open (ON) position. Do an occupancy evaluation to determine the dose personnel might receive. -
Page 29: Shutter (On/Off) Mechanism
Operation Shutter (ON/OFF) Mechanism Depending upon whether or not your source holder uses a shutter or cable/rod mechanism, checks are normally performed at intervals not to exceed six (6) months. Customers who have the ability to cycle shutters or check cables/rods on a more frequent basis without disturbing production requirements are recommended to do so. -
Page 30: On/Off Indicator
Operation There are no ON/OFF Indicators to verify that the shutter or cable/rod mechanism is working correctly or that the source is in the shielded position. When the source shutter or positioning rod or cable is in the retracted position and the shutter is closed, it is assumed that the source is in the shielded position. -
Page 31: Special Conditions
Operation 5.3 Special Conditions Radiation Fields Inside Vessels You must measure the radiation fields inside a vessel when entering the vessel. Use the following statement when defining those requirements: • Equipment that is mounted on vessels or has accessible air gaps must have written lockout procedures to ensure that access to the high levels of the primary radiation beam is not possible. - Page 32 Operation NOTES 39089-US-210509...
-
Page 33: Maintenance
Maintenance Maintenance To prevent potential problems and comply with radiation regulations, VEGA recommends the following maintenance schedule. 6.1 Periodic Maintenance Schedule Description Frequency Procedure Location Annually Ensure that the source holder is in the correct location. If the source is not in the correct location, contact your regulatory agency immediately. -
Page 34: Diagnostics
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 Turn the shutter to the OFF position, if possible and contact OFF position VEGA Americas Nuclear Services. -
Page 35: Spare Parts
Improper licensing In the United States, contact the U.S. NRC or an agreement state. If you are unable to correct the problem, please contact VEGA Americas Nuclear Services at 513-272-0131 or send an email to nuclearservices@vega.com. 6.4 Spare Parts There are no user-serviceable parts in the source holder. Consult VEGA for any service related needs. -
Page 36: Repair Information
Maintenance Repair Information When calling VEGA Americas for repair, have the following information available: • Product model that you are returning for repair. • Description of the problem. • VEGA Americas Customer Order (C.O.) Number. • Purchase Order Number for the repair service. -
Page 37: Dismounting
7.1 De-commission the Source Holder In many U.S. installations, a VEGA Americas Field Service Engineer de- commissions the source holder. Only persons with a specific license from the U.S. NRC, Agreement State, or other nuclear regulatory agency may remove the source holder lock. - Page 38 Dismounting • Inform all personnel involved in the removal, of the procedures necessary to limit radiation exposure. For example, how to reduce exposure using time, distance, and shielding. • Be prepared to handle the weight of the source holder. The approximate weight of the source holder is on the certified correct drawing.
-
Page 39: Disposal
Dismounting 7.2 Disposal Source Disposal Contact VEGA Americas Field Service for information 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. 1-844-VEGA-NOW (1-844-... - Page 40 Dismounting NOTES 39089-US-210509...
-
Page 41: Supplemental Information
Technical Data SHLG Maximum Cs-137 Activity - SHLG 1 148 GBq (4 Ci) for 50 uSv@305 mm (5 mR/hr@12") - SHLG 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") - Page 42 Supplemental Information - Life Expectancy 20 years - 40 °C … + 60 °C (- 40 °F … + 140 °F) - Temperature Atmospheric - Pressure Mild (less than 5 g) - Vibration - Corrosion Mild Accident Conditions Only - Fire and Explosion 0% to 100% Relative Humidity - Humidity A general license for the use of this source holder...
-
Page 43: Dimensions
14. 7b SHLG 2 - 10" [254 mm] 15. 7c SHLG 3 - 14" [356 mm] 16. 8 1/4" [6 mm] Padlock Hole 9a SHLG 1 - 3" [76 mm] 17. 9b SHLG 2 - 4" [102 mm] 18. 9c SHLG 3 - 5" [127 mm] 19. -
Page 44: Accessories
Supplemental Information 8.2 Accessories Accessory Description Part Number Leak Test Kit Leak test kit for one source holder. Includes 229555 swab, shipping container, instructions, analysis and report Signage "Caution Radioactive Materials" warning sign 238911 Survey Meter General purpose digital survey meter 245644 Survey Meter Model 2402 general purpose survey meter... -
Page 45: Customer Service
In addition to the documentation provided with your equipment, you will find more information on the CD shipped with your source holder. If you are unable to find an answer to your specific question, VEGA has service personnel located throughout the world to assist you. -
Page 46: Necessary Information
Necessary Information When you call with a question, please have the following necessary information available 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 the conduit entries, where applicable. - Page 48 All statements concerning scope of delivery, application, practical use, and operating conditions of the sensors and processing systems correspond to the information available at the time of printing. Copyright 2021 VEGA Americas, Inc. Cincinnati, Ohio, USA © Subject to change without prior notice 39089-US-210509...