Related Manuals for TSA Systems AM-255
Summary of Contents for TSA Systems AM-255
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Page 1: Alarm Monitor
ALARM MONITOR MODEL AM-255 OPERATING AND SERVICE MANUAL Version 1.01z December 20,2004... -
Page 2: Table Of Contents
4.1. UNIT OPERATION... 12 4.2. COMPONENTS... 13 5. MAINTENANCE ... 14 5.1. MAINTENANCE PROCEDURES ... 14 5.2. PERFORMANCE VERIFICATION CHECKLIST ... 15 6. TROUBLESHOOTING ... 16 6.1. COMPONENT ACCESS... 16 6.2. TROUBLESHOOTING GUIDE ... 17 6.3. TROUBLESHOOTING ... 18 AM-255 TABLE OF CONTENTS... - Page 3 B. GLOSSARY ... 20 C. FORMULAS ... 22 C.1. ACTIVITY FROM COUNTS ... 22 C.2. EFFICIENCY ... 22 C.3. N*SIGMA ALARM LEVEL ... 22 C.4. RELIABLE DETECTABLE ACTIVITY (RDA) FORMULA... 23 C.5. SIGNAL TO BACKGROUND RATIO... 23 C.6. VARIANCE... 24 D.
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Page 4: Introduction
AM-255 into existing alarm systems. The AM-255 is a dual input instrument, which will monitor two sets of pillars, or two master pillars. It has two complete sets of front panel lamps, as well as two input and two output connectors. -
Page 5: Specifications
One 12 pin, quick connect type terminal strip per system Dimensions: 7.5"h x 8.375"w x 8"d (19 x 21.3 x 20.3cm) ≈15lb (6.8kg) Weight: Environmental: Temperature: 32˚ to 120˚F (0˚ to 50˚C) Humidity: Up to 95% non-condensing 1. INTRODUCTION page 2 Model AM-255... -
Page 6: Inspection And Setup
The following procedures should allow on-site personnel to correctly install and set up the AM-255 for normal operation. Follow the procedures in the order given. It is recommended that a copy of the Initial Installation Set-Up Checklist (section 2.4.). be filled out after initial installation and whenever the AM-255 is put into service after prolonged storage. -
Page 7: Set-Up Procedures
2.2. SET-UP PROCEDURES An Initial Setup Checklist is included at the end of this section. It is recommended that a copy of this be filled out when the AM-255 is first installed, and whenever it is put into service after prolonged storage. -
Page 8: Wiring Instructions
2.2.6. Jumper: There is a jumper on the AM-255 board to select blinking or steady alarm lamps. The board will be jumped for blinking when the unit is shipped. If steady lamps are preferred, move the jumper to the steady position. -
Page 9: Input Signals
Radiation, NO High Background, C High Background, NC High Background, NO Low Background, C Low Background, NC Low Background, NO Tamper, C Tamper, NC Tamper, NO Model AM-255 Terminal Strip, Pin J4-1 J4-2 J4-3 J4-4 J4-5 J4-6 J4-7 J4-8 J4-9... - Page 10 Radiation, NO High Background, C High Background, NC High Background, NO Low Background, C Low Background, NC Low Background, NO Tamper, C Tamper, NC Tamper, NO Model AM-255 Terminal Strip, Pin J2-1 J2-2 J2-3 J2-4 J2-5 J2-6 J2-7 J2-8 J2-9...
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Page 11: Initial Setup Checklist
___ ACKNOWLEDGE button operates correctly ___ TEST function operates properly ___ Alarm test ___ All indicator lamps operate properly ___ Sonalert sounds when alarm indicated ___ Relays setup and operate correctly (if used) Performed by: ___________________________ Date: _____________ Model AM-255... -
Page 12: Operating Instructions
Tamper: Amber lamp indicates either a fault in the cable between the AM-255 and the portal monitor, or the tamper switch(s) in the pillar are activated. The tamper indication is also used to indicate a low battery condition when the AM-255 is used with TSA’s Personnel/Vehicle Monitors. -
Page 13: Summary Of Alarm Indications
Model AM-255 The AM-255 provides both audible and visual alarm indications for radiation alarms, low and high background alarms, and tamper... -
Page 14: Operation
3.3. OPERATION During normal operation no operator intervention is needed. If an alarm condition is indicated, the AM-255 will sound an audible alarm and the panel lamps will indicate the nature of the alarm so that proper action may be taken. -
Page 15: Theory Of Operation
The relays in the portal monitor are continuously monitored by the AM-255. Whenever the relays change state, the AM-255 reads the change and turns on the correct lamp and relay, and sounds the audio alarm. The alarm will follow the system. The green ready LED will go out when the alarm condition occurs, and re-illuminate when the alarm condition clears. -
Page 16: Components
4.2. COMPONENTS 4.2.1. AM-255 Board: The AM-255 Board is the controller board for the system. It receives information from the system, and enables the appropriate lamps, relays, and the Sonalert. All functions of the AM-255 board are controlled by a Programmable Logic Device. -
Page 17: Maintenance
5. MAINTENANCE 5.1. MAINTENANCE PROCEDURES The AM-255 has been designed for continuous use, and once initial installation has been completed, little maintenance is required. Periodic inspection is recommended to insure proper functioning. This should include (but is not limited to):... -
Page 18: Performance Verification Checklist
___ ACKNOWLEDGE button operates correctly. ___ TEST function operates properly. ___ Alarm test. ___ All indicator lamps operate properly. ___ Sonalert sounds when radiation alarm indicated. ___ Relay’s set up and operate correctly (if used). Performed by: _______________________ Date: ______________ Model AM-255... -
Page 19: Troubleshooting
Molex connector, and disconnect the wires to the terminal stripes. Remove the four phillips screws holding the AM-255 board, and lift the board out. To reinstall, replace the board on the standoffs using the four phillips screws, reconnect the wires, and Molex connector. Close the front panel and replace the two screws. -
Page 20: Troubleshooting Guide
6. TROUBLESHOOTING page 17 6.1.3. Battery Charger: The Battery Charger is wired directly into Molex connector to the AM-255 board. To disconnect, the Molex pins must be removed from the housing by inserting a small screwdriver or sharp pointed object into the slots in the housing and pressing down, while pulling gently on the wire. -
Page 21: Troubleshooting
6. TROUBLESHOOTING page 18 To check the charger, disconnect the positive terminal from the battery and J1 from the AM-255 circuit board. Measure the voltage from between the black and red battery wires. It should be at least 13.5 volts. If it is not then the charger must be replaced. -
Page 22: Appendix
Systems is constantly improving and upgrading the product line, TSA can make no guarantee as to the content of current manuals. No obligations are assumed for notice of change or future manufacture of these instruments. Manufactured by TSA SYSTEMS, LTD. 14320 LONGS PEAK COURT LONGMONT, COLORADO 80504 970.535.9949 FAX: 800.508.0083 Model AM-255... -
Page 23: Glossary
Also see ULD. Low Background Alarm/Fault: The condition that occurs if the counts fall below the programmed high background level. This condition prevents further operation until the problem is corrected. Normally set in cps. POST: Power On Self Test Model AM-255... - Page 24 Standard Background: Standard background requires the full background time for the initial background and updates. ULD: The Upper Level Discriminator provides a threshold, usually adjustable, that determines the highest signal level that will be accepted as a nuclear pulse by the system’s electronics. Also see LLD. Model AM-255...
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Page 25: Formulas
C.1. ACTIVITY FROM COUNTS C.2. EFFICIENCY C.3. N*SIGMA ALARM LEVEL This formula calculates the minimum activity, in disintegrations per minute, that can be reliably detected under a given set of operational conditions. APPENDIX C. FORMULAS page22 Activity = Activity in nCi Eff = Decimal efficiency (i.e. -
Page 26: Reliable Detectable Activity (Rda) Formula
CON = confidence sigma CT = count time in seconds E = system efficiency in percent F = false alarm level in cps FA = false alarm sigma G = intermediate variance RDA = reliable detectable activity Q = Quality factor... -
Page 27: Variance
APPENDIX C. FORMULAS page24 R = the quality factor C = each of the individual counts Where: N = number of counts taken R = mean variance I = number of iterations Model AM-255... -
Page 28: Configuration Tracking Sheet
SOFTWARE VERSION:_______________ OPTIONS AND ACCESSORIES:_______________________________________________ ___________________________________________________________________________ MODIFICATION:____________________________________________________________ ___________________________________________________________________________ INSTALLED BY:________________________________ DATE:__________ MODIFICATION:____________________________________________________________ ___________________________________________________________________________ INSTALLED BY:________________________________ DATE:__________ MODIFICATION:____________________________________________________________ ___________________________________________________________________________ INSTALLED BY:________________________________ DATE:__________ MODIFICATION:____________________________________________________________ ___________________________________________________________________________ INSTALLED BY:________________________________ DATE:__________ APPENDIX D. CONFIGURATION TRACKING SHEET page25 SERIAL NUMBER:________________ DATE RECEIVED:________________ SYSTEM MODIFICATIONS Model AM-255... -
Page 29: Parts
Model number suffixes are generally not included in the text of the manual, however, the suffixes in the PARTS LISTS must be included on orders for spare parts. APPENDIX E. PARTS LISTS page26 For Assistance Call: TSA SYSTEMS, LTD. 14320 LONGS PEAK COURT LONGMONT,COLORADO 80504 970.535.9949 FAX: 800.508.0083 Model AM-255... -
Page 30: Drawings
APPENDIX F. DRAWINGS page27 F. DRAWINGS Please reference the drawings package provided with the instrument to view the following: AM-255 Pictorial View ... 1 AM-255 Pictorial View ... 2 AM-255 Controller Board ... 3 For Assistance Call: TSA SYSTEMS, LTD.
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