Sigma BM-286A Service Manual

WASTE MONITOR MODEL BM-286A OPERATING AND SERVICE MANUAL Version 1.00z December 20, 2004

3. OPERATING INSTRUCTIONS page 7 Model BM-286A 3. OPERATING INSTRUCTIONS 3.1. GENERAL OVERVIEW When the BM-286A is initially installed at its ope

3. OPERATING INSTRUCTIONS page 8 Model BM-286A 3.2. POWER-UP AND SELF-TESTS The main power switch is located on the left hand side of the BM-286A.

3. OPERATING INSTRUCTIONS page 9 Model BM-286A If a background fault condition (either high or low) is detected the detector windows will be display

3. OPERATING INSTRUCTIONS page 10 Model BM-286A Background Record: Background record is necessary for future use. User Log-On: User log-on is use

3. OPERATING INSTRUCTIONS page 11 Model BM-286A Set-Up Waste Streams: Set-Up Waste streams allows the operator to enter the parameters for the var

3. OPERATING INSTRUCTIONS page 12 Model BM-286A If more weight (>5 lb), but less than the programmed minimum weight is detected, the screen will

3. OPERATING INSTRUCTIONS page 13 Model BM-286A The print button can be touched in the scan results box for a print out of the scan data. The data

3. OPERATING INSTRUCTIONS page 14 Model BM-286A 3.4.1. Set-Up Menu: Set-up is used to refer to the parameters that are common to all waste types. T

3. OPERATING INSTRUCTIONS page 15 Model BM-286A Low Alarm: Low alarm level in CPS, is the point at which the unit will generate a FAULT condition.

3. OPERATING INSTRUCTIONS page 16 Model BM-286A Minimum Weight Lbs: The minimum weight in pounds required before a scan may be initiated. Enter a

BM-286A TABLE OF CONTENTS 1. INTRODUCTION...

3. OPERATING INSTRUCTIONS page 17 Model BM-286A 3.4.2. Set-Up Waste Streams: The following parameters must be set for each waste stream to be used:

3. OPERATING INSTRUCTIONS page 18 Model BM-286A The actual formula used to determine minimum scan time is derived from the RDA formula found in Appe

3. OPERATING INSTRUCTIONS page 19 Model BM-286A Alarm Type: Alarm type selects the method of generating a radiation alarm. The available options a

3. OPERATING INSTRUCTIONS page 20 Model BM-286A Efficiency: This parameter entry represents the efficiency of the detectors, in percent, to the sou

3. OPERATING INSTRUCTIONS page 21 Model BM-286A Alarm Level: The operator will be prompted for the alarm level (depending on the alarm type selecte

3. OPERATING INSTRUCTIONS page 22 Model BM-286A 3.5. DIAGNOSTICS AND UTILITIES When the operator presses the utilities button, the operator will b

3. OPERATING INSTRUCTIONS page 23 Model BM-286A 3.5.3. Detector Efficiency Check: The Calculation Set-up box will appear and the operator will be p

3. OPERATING INSTRUCTIONS page 24 Model BM-286A 3.6. REPORTS A file called REPORT.DBF is located in the BM286A directory, if the file does not exi

3. OPERATING INSTRUCTIONS page 25 Model BM-286A 3.7. INITIAL INSTALLATION CHECKLIST Plastic Detectors: Background: __________ Counts Test Sour

3. OPERATING INSTRUCTIONS page 26 Model BM-286A Set-Up Parameters: Background Time: __________ seconds Background Method: [ ] Rolling [

6. TROUBLESHOOTING ...39 6.1. DIAGNOSTIC AIDS

3. OPERATING INSTRUCTIONS page 27 Model BM-286A 3.8. WASTE STREAM SET-UP WORKSHEET BM-286A WASTE STREAM SET-UP WORKSHEET Waste Stream number : ___

4. THEORY OF OPERATION page 28 Model BM-286A 4. THEORY OF OPERATION The BM-286A system is a self-contained Bag/Box monitor, operated by two persona

4. THEORY OF OPERATION page 29 Model BM-286A 4.2.2. Computers and Power Supply: Refer to "BM-286A Wiring Diagram" Drawing 3 and"BM-2

4. THEORY OF OPERATION page 30 Model BM-286A 4.2.4. Channel Card, RCS-110: Refer to "RCS-110 Schematic Diagram" Drawing 6 and "RCS-1

4. THEORY OF OPERATION page 31 Model BM-286A 4.2.5. Discriminator Card, RCS-120: Refer to "RCS-120 Schematic Diagram" Drawing 8 and "

4. THEORY OF OPERATION page 32 Model BM-286A 4.2.7. Receiver Board, RECV-1: Refer to "RECV-1 Schematic Diagram" Drawing15 and "RECV-

5. MAINTENANCE page 33 Model BM-286A 5. MAINTENANCE 5.1. OPERATOR MAINTENANCE The slide tracks on the weight scale platform should be greased mon

5. MAINTENANCE page 34 Model BM-286A 5.2.1. Channel Boards, RCS-110: Refer to "RCS-110 Schematic Diagram" Drawing 6 and "RCS-110 Com

5. MAINTENANCE page 35 Model BM-286A Connect the DVM between TP16(-) and TP17(+). Connect the oscilloscope between TP16(ground) and TP15(input). P

5. MAINTENANCE page 36 Model BM-286A 5.3. DISCRIMINATOR ADJUSTMENT The Upper and Lower Level Discriminators (ULD & LLD) set the maximum and mi

1. INTRODUCTION page 1 Model BM-286A 1. INTRODUCTION 1.1. SCOPE AND PURPOSE OF MANUAL This manual is designed to enable operating and service per

5. MAINTENANCE page 37 Model BM-286A 5.4. WEIGHT CALIBRATION The third party scale was calibrated at the factory and should not need calibration.

5. MAINTENANCE page 38 Model BM-286A 5.5. CALIBRATION CHECK-LIST High Voltage: HHV #1: __________ VDC HHV #2: __________ VDC HHV #3: _________

6. TROUBLESHOOTING page 39 Model BM-286A 6. TROUBLESHOOTING This guide is designed so that on-site personnel can service the BM-286A and effect nec

6. TROUBLESHOOTING page 40 Model BM-286A 6.2. FAULT ISOLATION When the program is executing on the NT machine there are two small dark green boxes

6. TROUBLESHOOTING page 41 Model BM-286A 6.3. COMPUTERS To check the DOS computer a VGA monitor can be connected to see if it is running and the o

APPENDIX A. WARRANTY page 42 Model BM-286A APPENDIX A. WARRANTY STANDARD WARRANTY FOR TSA SYSTEMS INSTRUMENTS TSA Systems, Ltd., warrants this i

APPENDIX B. GLOSSARY page 43 Model BM-286A B. GLOSSARY ADC: Analog to Digital Converter, is an integrated circuit that converts an analog signal

APPENDIX B. GLOSSARY page 44 Model BM-286A Rolling Background: This is the background accumulation method used in most of TSA’s instruments. Back

APPENDIX C. FORMULAS page 45 Model BM-286A C. FORMULAS The following formulas are used in various systems manufactured by TSA Systems, Ltd. They

APPENDIX C. FORMULAS page 46 Model BM-286A C.4. RELIABLE DETECTABLE ACTIVITY (RDA) FORMULA This formula calculates the minimum activity, in disin

1. INTRODUCTION page 2 Model BM-286A 1.3. SPECIFICATIONS Sensitivity: See graph on page 4 (section 1.3. Specifications). Detectors: Two 12&

APPENDIX C. FORMULAS page 47 Model BM-286A C.6. VARIANCE The variance analyzer mode is used to check whether the counts seen by the controller ar

APPENDIX D. CONFIGURATION TRACKING SHEET page 48 Model BM-286A D. CONFIGURATION TRACKING SHEET TSA MODEL NUMBER:______________ SERIAL NUMBER:__

APPENDIX E. PARTS page 49 Model BM-286A E. PARTS E.1. RECOMMENDED SPARE PARTS A complete list of spare parts is available by contacting TSA Sys

APPENDIX F. DRAWINGS page 50 Model BM-286A F. DRAWINGS Please reference the drawings package provided with the instrument to view the following:

1. INTRODUCTION page 3 Model BM-286A Weight: Unit ≈12,000 lb (5,455kg) with 1.75" lead shielding Sample Weight: 5 to 1,000 pounds (2.

1. INTRODUCTION page 4 Model BM-286A

2. INSPECTION AND INSTALLATION page 5 Model BM-286A 2. INSPECTION AND INSTALLATION The following procedures should allow on-site personnel to corre

2. INSPECTION AND INSTALLATION page 6 Model BM-286A 2.1.4. Shipping: Before returning the instrument for any reason, notify TSA Systems of the diff