Contents
13
Chapter 8 Electronics
Side board, 236
Electronics module, 237
Main board, 238
Signal amplifier board, 239
HP-IB/MS control card, 240
AC board, 241
Pumpdown safety shutdown, 242
Power supplies, 243
Low voltage (ac-dc) power supply, 243
High voltage (HED) power supply, 243
Toroid transformer, 244
Back panel and connectors, 245
Remote start connector, 245
I/O (HP-IB) connector, 245
HP-IB address switch, 245
High vacuum signal (
HIVAC SIGNAL) connector, 246
High vacuum power (
HIVAC POWER) connector, 246
Power cord receptacle, 246
Foreline pump power cord receptacle, 246
Primary fuses, 246
Interfacing to external devices, 248
Remote control processor, 248
Remote start signals, 248
System ready, 249
Start run input, 249
Status display and power switch, 250
Power status LED, 250
Analyzer status LED, 250
Cal valve status LED, 250
Power switch, 250
Turbo pump controller, 252
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