Thermo Finnigan LTQ - Page 63

Functional Description
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___________________________________________________________________ MS Detector
_______________________ Finnigan LTQ Hardware Manual ______________________
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Two additional LEDs and a push-button switch are located on the front panel
above the divert/inject valve. See Figure 2-5. When the divert/inject valve is
set up for loop injections, the divert/inject valve button toggles the valve
between load and inject modes and the labels Load and Inject apply. When the
divert/inject valve is set up for divert valve operation, the divert/inject valve
button toggles the LC flow between the MS detector and the waste container
and the labels Detector and Waste apply.
The main power circuit breaker switch (labeled Main Power) is located on
the power panel, which is located at the lower right corner of the right side
panel of the MS detector. See Figure 2-6. In the Off (O) position, the circuit
breaker removes all power to the MS detector, including the vacuum pumps.
In the On (|) position, power is supplied to the MS detector. In the standard
operational mode, the circuit breaker is kept in the On (|) position.
The electronics service switch is located on the power panel (See Figure 2-6).
In the Service position the switch removes power to all components of the MS
detector other than the vacuum system. In the Electronics Normal position
power is supplied to all components of the MS detector.
Figure 2-5. Divert/inject valve button and LEDs
Note. To shut off all power to the MS detector in an emergency, place the
main power circuit breaker switch (labeled Main Power) in the Off (O)
position. Do not use the electronics service switch .