Thermo Fisher Scientific LTQ Orbitrap XL ETD Hardware Manual xi
Contents
Chapter 1 Functional Description.............................................................1-1
General Description .......................................................... 1-2
Mechanical Characteristics............................................. 1-4
Specifications ................................................................. 1-5
Control Elements.............................................................. 1-6
System Status LEDs ....................................................... 1-6
Control Panels ............................................................... 1-7
Linear Ion Trap............................................................... 1-12
Orbitrap Analyzer ........................................................... 1-13
Measuring Principle ..................................................... 1-13
Curved Linear Trap ..................................................... 1-13
Extraction of Ion Packets ............................................. 1-14
Ion Detection............................................................... 1-15
Active Temperature Control ........................................ 1-17
HCD Collision Cell........................................................ 1-18
ETD System ................................................................... 1-19
Principle of Operation ................................................. 1-19
ETD Module ............................................................... 1-19
Vacuum System .............................................................. 1-28
Turbopumps................................................................ 1-29
Forevacuum Pumps of the Linear Trap ........................ 1-31
Forevacuum Pump of the ETD Module....................... 1-32
Vacuum System Controls............................................. 1-33
Vacuum System Heating during a System Bakeout ...... 1-35
Gas Supply...................................................................... 1-36
Gas Supply for the Mass Analyzers............................... 1-36
Gas Supply of the Reagent Ion Source ......................... 1-39
Cooling Water Circuit .................................................... 1-40
Recirculating Chiller .................................................... 1-41
Properties of Cooling Water......................................... 1-41
Printed Circuit Boards .................................................... 1-42
Linear Ion Trap Electronics.......................................... 1-43
Electronic Boards at the Right Side of the Instrument.. 1-44
Electronic Boards on the Left Side of the Instrument... 1-58
Chapter 2 Basic System Operations ........................................................2-1
Shutting Down the System in an Emergency .................... 2-2
Behavior of the System in Case of a Main Failure........... 2-2
Placing the LTQ Orbitrap XL ETD in Standby
Condition ......................................................................... 2-4
Placing the ETD Module in Standby Condition............ 2-4
Placing the MS in Standby Condition............................ 2-6