PCM-2 Manual.pdf - Voss Associates

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18. Hold the probe upright with its open face facing slightly downward and blow all internal surfaces clean with canned air or dry nitrogen gas. CAUTION: DO NOT use compressed shop air in-line hdJiil"Rcai!1lts wiii contami.nate Rilil:enrnai probe chamber surfaces. 19. Lay the probe face-down onto a unifonnly stretched and canned air "hlown" mylar sheet kaving a minimum 2 in. wide mylar excess all around. Mylar should be stretched onto a clean smooth sheet of cardboard to avoid puncturing the mylar and for subsequent razor blade trimming. Apply a very thin spread of clear vacuum grease (DOW-CORNING High Vacuum Grease # 976) to the outer flanges of the probe chamber all around. Install the ...... 20. Cut two 2 in. long lengths of double-sticky conductive copper tape and affix at each of the probe's short sides. off-center, with one end of the tape near the gasket face per print. Seeure the tape finnly to the gasket and down onto the external (back) surface of the probe chamber and peel off the remaining tape liners. 21. Trim the mylar around the probe with a sharp razor blade and smooth mylar over gasket on all four sides and over onto exposed copper tape at ends. Neatly gather up the mylar at each corner of the probe and laying and Scotch tape it over onto its baek surface. 22. Lay the probe chamber ring (outer frame) face-down on bench and insert prepared probe chamber face-down into it pushing down uniformly on the probe all around until mylar face is firmly seated against the inside surface of the chamber ring. If excessive resistance is encountered between the chamber and ring remove the prepared chamber, apply a thin film of clear liquid silicone lubricant to the inner sides of the ring and then reinstall the probe chamber. 23. Trim the excess mylar around the probe at the edge of the chamber ring with a sharp razor blade, making sure to trim around and not cut through the two mylar/cooper tape pieces at each of the probe assembly. Cover each of these mylar/tape pieces over with lengths of Scotch tape. 24. With the probe assembly face-down on a flat rigid surface, apply a uniformly distributed clamping force on the back surface of the probe chamber so as to compress the probe gasket .005 to .015 in. all around, thereby creating the necessary gas seal. A set-up of wooden load spreader blocks and C-clamps or bench mounted quick-clamps works well for this clamping operation (reference Figure 1). 25. With sufficient clamping force applied to the probe assembly, install the spring clips in the slots grooves located all around on the ring and chamber respectively per print. If the detector is being rebuilt with used spring clip parts, bend each of the spring clips back to a 90 degree or slightly acute angle with a pair of pliers prior to reinstalling them onto the probe assembly. If the spring clips show any crazing, cracks or other signs of work hardening fatigue or if the 11000-A308/PCM-2 Det. Assy. Procedure/Revision/March 1994 6
detector clips have been reused more than 4 times, discard the clips and use new ones. 26. Remove the clamping force on the probe assembly, set the clamps and wooden blocks off to the side and cover the detector face with a rigid cardboard sheet to protect the delicate mylar face. This completes the detector assembly. 27. Route the assembled detector for testing per I0429-A525, PCM-2 Detector Voltage and Leak Test Procedure. 11000-A308/PCM-2 Det. Assy. Procedure/Revision/March 1994 7
Page 1 and 2:
Table of Contents Response Check .
Page 3 and 4:
Modular Detector Board Parts List1
Page 5 and 6:
List of Illustrations PCM-2 8 PCM-2
Page 7 and 8:
Detectors Installation Assembly, 11
Page 9 and 10:
The image is one of a user's body o
Page 11 and 12:
Counting Computers High Voltage Sup
Page 13 and 14:
Theory of Operation Operational Mod
Page 15 and 16:
Section 2 Installation Unpacking Th
Page 17 and 18:
Electrical Power ~nsta~ Each of the
Page 19 and 20:
The RDA confidence should be edited
Page 21 and 22:
1400 to 1900 volts) using long coun
Page 23 and 24:
To determine which detector(s) are
Page 25 and 26:
Restoring Default Values To force a
Page 27 and 28:
Computer Interface The user is inst
Page 29 and 30:
Main System Menu Upon entering test
Page 31 and 32:
Section 4 View Measurement Results
Page 33 and 34:
Section 5 Edit I View PCM-2 VERSION
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v./henever the above parameters are
Page 37 and 38:
Where: R bkg = The new computed ave
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Alpha & Beta Sum Zone Alarm Alpha &
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R new = The most-recently measured
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Alpha & Beta Sum Zone Alarm Alpha &
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WF= Weight Factor R new = The most-
Page 47 and 48:
Count Rate Units Activity Units Cou
Page 49 and 50:
Hand Switch Req'd? Hip switch Req'd
Page 51 and 52:
The alarm precedence scheme preclud
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The keyboard arrow keys may be used
Page 55 and 56:
Background Plateau Source Plateau D
Page 57 and 58:
arcing potential. Once a high volta
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27.0 BACKGROUND PLATEAU - DETECTOR
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False Alarm Test Calibration Report
Page 63 and 64:
Voice Annunciator Test boards are d
Page 65 and 66:
Manual Ins ert: PCM-2 Personnel Con
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OPTIONS Hand Probe Option (PCM2 OPT
Page 69 and 70:
performed as often as twice daily,
Page 71 and 72:
exercising care to avoid detatching
Page 73 and 74:
• Detector channels whose correct
Page 75 and 76:
High & Low Count Fail Verify that t
Page 77 and 78:
Section 11 Front Panel Board Genera
Page 79 and 80:
Al6 is buffered to and from RS-232
Page 81 and 82:
Connector Pinout: 06 DSR (from exte
Page 83 and 84:
09 Output bit 1 @ A003Dispiay 1 clo
Page 85 and 86:
PCM-2 Front Panel Board, YP11526000
Page 87 and 88:
Front Panel Board Schematic 11526-D
Page 89 and 90:
; P2 5 1 P3s 1 P4 5 ~ I o R;_-;;;;;
Page 91 and 92:
Special Functions The RS-485 transm
Page 93 and 94:
8S I t\:l ~ NOTES: 1. RESISTANCE VA
Page 95 and 96:
Section 13 Modular Detector Board G
Page 97 and 98:
Setup and Calibration High voltage
Page 99 and 100:
Modular Detector Board, YP11543000
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~. ,,:Jrq II TJ2 I A2 CR2 CR3 CR4!
Page 103 and 104:
~ ~ Q.. >::: ...... ~ .., b "" :::
Page 105 and 106:
position 1 2 3 - 8 SI-8 Switch Sett
Page 107 and 108:
PJ +5V AAAAA 1 1 ] .. ~ 'It GND ~ P
Page 109 and 110:
Section 15 Traffic Light Board Gene
Page 111 and 112:
\/\/\/\/\ 2 J 4 5 J 1 I , I 1\ I I'
Page 113 and 114:
Section 16 Detectors General Descri
Page 115 and 116:
Detector Part No. Detector Descript
Page 117 and 118:
Revised Detector \ssemblies Parts L
Page 119 and 120:
Reference 11534-D562 PCM-2 Revised
Page 121 and 122:
~ o ....: 0 ~ ,.; j l I ~' --------
Page 123 and 124:
0 -, ~ "
Page 125 and 126:
ef R---- Anod~ I\'ire Spnng ! I Imr
Page 127 and 128:
tones, which emanate from the perfo
Page 129 and 130:
vec "0 (\ ~ ..... I N Q "?;- ....
Page 131 and 132:
Revised Clicker Board Parts List Th
Page 133 and 134:
o n a o o ~Q -i-oL-CJ-~ a -1 SCJ ~
Page 135 and 136:
j---------------------l I p I I I I
Page 137 and 138:
Switches SW1-6 set the RS-485 board
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Voice Annunciator Board, YP11513000
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co N u ~ '" N U +~ co 0:: o~ ~ ~r
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Voice Annunciator Option Parts List
Page 145 and 146:
Printer Option (PCM2 OPT3) Printer
Page 147 and 148:
Remote Annunciator Option (PCM2 OPT
Page 149 and 150:
RED YELLOW OS1 I~ ~~~ ~I 10 9 5 7LJ
Page 151 and 152:
Wall Mount Remote Annunciator Optio
Page 153 and 154:
Wall !J,OUr1t Base0\ (Accepts up to
Page 155 and 156:
NOTE: The gate locks used on the PC
Page 157 and 158:
~3DNV~ 3iV/l [~~ ~ ~ I 1 2,3 4 XVrI
Page 159 and 160:
Optional Features Parts List The fo
Page 161 and 162:
Reference 11534-D478, Access Contro
Page 163 and 164:
Reference 11534-D480, Access Contro
Page 165 and 166:
RED lights oriented100'--/ " I on t
Page 167 and 168:
Ceiling Assembly, per 11534-0478 I
Page 169 and 170:
Swiveling Casters Option (PCM2 OPT6
Page 171 and 172:
020 (Right) CfJ ;:§. (]) ' '" tJ
Page 173 and 174:
lei Insert Card Reader Option Parts
Page 175 and 176:
ICI Swipe Card Reader Option (PCM2
Page 177 and 178:
XICO Insert Card Reader Option (PCM
Page 179 and 180:
Side Door Ass'y, per 11534-0330, re
Page 181 and 182:
CI Swipe Card Reader Option (PCM2 O
Page 183 and 184:
HP Smart Wand Bar Code Reader Optio
Page 185 and 186:
Intermec Bar Code Reader Option (PC
Page 187 and 188:
to item 042 interlace Box Power J2
Page 189 and 190:
Mylar/Poly Film Dispenser Option (P
Page 191 and 192:
------ ---------- 3, 19" lengths no
Page 193 and 194:
Gas Bottle Enclosure Option (PCM2 O
Page 195 and 196:
4 req'd §r' J--~ o ' n m t : Det
Page 197 and 198:
Gas Management Option (PCM2 OPT12)
Page 199 and 200:
Gas use is expressed as the percent
Page 201 and 202:
Reference Designation AlO Pmi Name
Page 203 and 204:
~ Ql (I) ~ ::J Ql crq ~ '"tI @ a Ql
Page 205 and 206:
Gas Management Option Parts List Re
Page 207 and 208:
€D)rel. €D) reI. 8 reI. Purge I
Page 209 and 210:
from to PC-AT Disk I/o pwr suppy, C
Page 211 and 212:
Reference 11534-D542; Spare Purging
Page 213 and 214:
High Sensitivity Detector Screens O
Page 215 and 216:
Head & Shoulders Position Sensor Op
Page 217 and 218:
Photocell Emitter and Receiver to c
Page 219 and 220:
RF Spread Spectrum Modem Option (PC
Page 221 and 222:
Central Computer RF Modem Option (P
Page 223 and 224:
PCMHOST Program (PCM2 OPT20) The PC
Page 225 and 226:
Item Ref # PCM-2 Miscellaneous Part
Page 227 and 228:
PCM-2 Miscellaneous Parts List Refe
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Section 19 Recommended Spare Parts
Page 243 and 244:
PCM-2 Recommended Spare Parts List
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
o :> l:\:I W / / ,--- Base Assemb
Page 251 and 252:
CejJjng J1ssembly 11534-D315, sheet
Page 253 and 254:
(( '\ 29 C/ttIj tl) 8-- §-- ~
Page 255 and 256:
'~'" .~~ 1j . I ~ '-... '< ~ Q) t:
Page 257 and 258: :0 front panel board. Pl0 II I I ~
Page 259 and 260: IL~~~-----)}-------54". rer.------1
Page 261 and 262: 1i O 1: C " 0 e ~i h n '-., n -0
Page 263 and 264: 10 foot exhcust length (584 Gas Man
Page 265 and 266: "-"-"-"-"-"-"-"-"-"-"-"-"-"-"-"-"-"
Page 267 and 268: (lSsy ~- see Detail 6 i 336 001--'_
Page 269 and 270: § Speaker cable § '" ~ ~ (]) C) N
Page 271 and 272: .... ~ /'--/ Gal rd stationary sect
Page 273 and 274: Ceiling Assembly per 11534-D315 _ G
Page 275 and 276: 110 Lower Electronics E.nclosure As
Page 277 and 278: ~ ;g if
Page 280 and 281: Statistical Control Of Radiological
Page 282 and 283: Eq. 8 EXAMPLE 2: An alpha CAM equip
Page 284 and 285: DISTRIBUTION FUNCTIONS Binomial Dis
Page 286 and 287: x pix) Pix) 0 0.082085 '000000 1 02
Page 288 and 289: P(x) Eq.31 As illustrated by Figure
Page 290 and 291: Chi-Squared Distribution Function T
Page 292 and 293: can only assume a single value, det
Page 294 and 295: In Figure 6 the shaded area corresp
Page 296 and 297: Controlling Sensitivity Qualitative
Page 298 and 299: 1. Minimum Count time Since adjusti
Page 300 and 301: The term (Js is derived using the m
Page 303 and 304: '-----r~J aUAN, [~.-. DESC;~TI~N ':
Page 305 and 306: CAUTION: DO NOT use compressed shop
Page 307: NOTE: String the wire such that the
Page 311 and 312: DESCRIPTION t: Eberline ;"Jr1laFe N
Page 313 and 314: Long probes Medium probes Small
Page 315 and 316: - A 1/8" ID gas "supply" hose with
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