Divert/Inject Valve; Leds And Button; Figure 4. Divert/Inject Valve Button And Leds - Thermo Scientific LTQ Series Hardware Manual

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Functional Description

Divert/Inject Valve

Syringe Pump LED
Divert/Inject Valve

LEDs and Button

10 LTQ Series Hardware Manual
A light-emitting diode (LED) to the right of the on/off button indicates whether the pump is
on or off. Table 3 lists the states of the syringe pump LED.
Table 3. Syringe pump LED states
State
Not illuminated
Steady green
Flashing green
The divert/inject valve is located on the front of the LTQ Series mass spectrometer to the left
of the API source.
You can configure (plumb) the divert/inject valve in one of two ways: as a divert valve for
direct infusion, high-flow infusion, or LC/MS experiments; or as a loop injector for
flow-injection analysis. For procedures about plumbing the valve in the loop injector or
configuring the divert valve, refer to the LTQ Series Getting Started Guide.
You can use the divert/inject valve button or the data system to control the divert/inject valve.
Refer to the data system Help for instructions about operating the divert/inject valve.
The control button for the divert/inject valve is located on the front panel above the
divert/inject valve. It switches the valve between two positions. The LEDs to the left of the
button indicate the position of the valve
Figure 4. Divert/inject valve button and LEDs
Load
Detector
Waste
Inject
When the divert/inject valve is set up for loop injections (flow injection analysis [FIA]),
pressing the divert/inject valve button switches the valve between the load and inject modes.
The Load and Inject LEDs indicate the position of the valve.
Meaning
The syringe pump is off.
The syringe pump is on. The pusher block is moving at a normal
speed that produces the flow rate specified in the data system. The
allowable flow rate setting depends on the syringe size.
The syringe pump is on and the pusher block is moving at the fast
speed.
(Figure 4).
Thermo Scientific