Thermo Finnigan LTQ - Page 88

Functional Description
MS Detector
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2-34 ______________________ Finnigan LTQ Hardware Manual _______________________
Figure 2-18. Functional block diagram of the Power Entry Module and power distribution of the
MS detector
POWER
ENTRY
MODULE
LINE POWER
MAIN POWER
CIRCUIT
BREAKER
LINE FILTER
ELECTRONICS
SERVICE
SWITCH
INTERLOCK
PCB
FOREPUMP
POWER/SIGNAL
DISTRIBUTION
PCB
INTRLK +24 V +24 V
220 V ac
SERVICE
220 V ac
POWER
SUPPLY
PS1
+5, +/- 15, +60 V
SERVICE
220 V ac
220 V ac
+24, +36, -28 V
POWER
SUPPLY
PS2
300 V
POWER
SUPPLY
INTRLK +24 V
+/-300, +/-150 V
SOURCE
PCB
+5, +/-15 V
+60, +24 V
ION
GAUGE
GAS FLOW
VALVES
DIVERT/INJECT
VALVE
SYRINGE
PUMP
SERVICE
220 V ac
220 V ac
220 V ac
220 V ac
220 V ac
+/-15 V
+24 V
+24 V
+/-15 V
+180 V
8 KV
POWER
SUPPLY
INTRLK +24 V
0 TO 8 KV
API
SOURCE
SERVICE,
INTRLK
220 V ac
+24 V
FANS
VENT
VALVE
TURBOMOLECULAR
PUMP
INTRLK +24 V
CONVERSION DYNODE/
ELECTRON MULTIPLIER
POWER SUPPLY
CONVERSION
DYNODE
ELECTRON
MULTIPLIER
0 TO -2.5 KV +/- 15 KV
ANALOG
PCB
MAIN RF
AMPLIFIER
PCB
LENSES,
DC OFFSETS,
Q00, Q0, Q1 RF
MASS
ANALYZER
RF
+/- 300 V
+/-150 V
+5, +/-15 V
+36, -28, +24 V
+5 V dc
+36, -28 V dc
ION TRANSFER
CAPILLARY HEATER
+60 V dc
APCI
VAPORIZER