Waters ACQUITY UPLC M-Class System Manual page 50

3.1.5.1 Solvent manager: Flow LED
The Flow LED on the right-hand side of the power LED on the solvent manager's front panel
indicates the flow status.
Table 3–2: Flow LED indications
LED mode and color
Unlit
Constant green
Flashing green
Flashing red
Constant red
Flashing red and green
3.1.5.2 µSM-FL: Run LED
The Run LED, located on the right-hand side of the power LED on the µSM-FL's front panel,
indicates the run status.
Table 3–3: Run LED indications
LED mode and color
Unlit
Steady green
Flashing green
Flashing red
Description
The module is idle.
Flow LED: The module has solvent flowing or
is running a diagnostic.
The system is waiting for at least one module
to become operable. Warm-up times typically
cause such a delay. See the status message in
the console.
An error stopped the module's operation. The
console displays a status message describing
the error that caused the failure.
A module failure prevents further operation.
Cycle power to the module. If the LED is still
constant red, contact your Waters service
representative.
Used as a visual identification of a module
after you select it via the console.
Description
Module is idle.
The µSM-FL is operating normally, attempting
to complete any outstanding samples. When
sample requests are finished, the LED reverts
to the unlit mode.
Initializing and preparing for normal operation.
Error state. Refer to the instrument console for
information about the error.
November 26, 2019, 715003588 Revision C
Page 50