Scion Instruments 436-GC Service Manual page 3

Hardware description .......................................................................................................................................... 73
Electronic - pneumatic Injector Controller PWA Circuit Description. .................................................................. 74
ADC Circuit Description ...................................................................................................................................... 79
FID Electronics Circuit Description ..................................................................................................................... 81
ECD Electronics Circuit Description ................................................................................................................... 85
NPD Electronics Circuit Description ................................................................................................................... 88
TCD Electronics Circuit Description ................................................................................................................... 92
PFPD Electronics Circuit Description ................................................................................................................. 95
Software description ........................................................................................................................................... 99
Electrical diagrams ........................................................................................................................................... 100
ILLUSTRATED PARTS BREAKDOWN .................................................................................. 102
INJECTORS ............................................................................................................................ 103
split/splitless Injector Assembly ........................................................................................................................ 104
Programmable Temperature Vaporizing (PTV) Injector ................................................................................... 105
Cooling option LCO2 (PTV Injector) ................................................................................................................. 106
Cooling option LN2 (PTV Injector) .................................................................................................................... 107
Cooling option AIR (PTV Injector) .................................................................................................................... 108
On Column Injector ........................................................................................................................................... 109
Flash Vaporization Injector .............................................................................................................................. 110
Septum Equipped Programmable Injector (SPI) Injector ................................................................................. 111
Cooling option LCO2 (SPI Injector) .................................................................................................................. 112
Cooling option LN2 (SPI Injector) ..................................................................................................................... 113
Cooling option AIR (SPI Injector)...................................................................................................................... 114
Flow diagram SPI injector ................................................................................................................................. 115
SPT Sample Pre concentration Trap (SPT) Injector ........................................................................................ 116
Trap descriptions .............................................................................................................................................. 117
DETECTORS ........................................................................................................................... 119
FID Flame Ionization Detector .......................................................................................................................... 120
NPD Nitrogen Phosphorus Detector ................................................................................................................ 121
TCD Thermal Conductivity Detector ................................................................................................................. 122
ECD Electron Capture Detector ....................................................................................................................... 124
PFPD Pulsed Flame Photometric Detector ...................................................................................................... 125
Replacing the Optical filter ................................................................................................................................ 126
PDHID Pulsed Discharge Helium Ionization Detector ...................................................................................... 127
Overview PDHID .............................................................................................................................................. 128
Column connections ......................................................................................................................................... 128
Helium Purifier .................................................................................................................................................. 129
Power supply PDHID ........................................................................................................................................ 129
Pulse Discharge module ................................................................................................................................... 129
Valco manifold TIGA ......................................................................................................................................... 130
Minature helium Purifier.................................................................................................................................... 130
ELECTRONIC FLOW CONTROL ........................................................................................... 131
EFC Type 21 Constant pressure or Constant flow module .............................................................................. 131
EFC Type 23 Flow control module ................................................................................................................... 131
EFC Type 24 Pressure control module ............................................................................................................ 131
EFC Type 25 Pressure control module ............................................................................................................ 131
EFC & DEFC Layout ........................................................................................................................................ 131
Electronic Flow Control Type 21 ....................................................................................................................... 132
Split injection use with split/splitless injector .................................................................................................... 133
Splitless injection use with split/splitless injector .............................................................................................. 134
Split injection use with PTV injector ................................................................................................................. 135
Splitless injection use with PTV injector ........................................................................................................... 136
Electronic Flow Control Type 23 ....................................................................................................................... 137
Injection use with On Column injector .............................................................................................................. 138
Injection use with Flash Vaporization injector .................................................................................................. 139
Injection use with SPI injector........................................................................................................................... 140
Electronic Flow Control Type 24 ....................................................................................................................... 141
Injection use with On Column injector .............................................................................................................. 142
Injection use with Flash Vaporization injector .................................................................................................. 143