Thermo Scientific Vanquish VH-P10-A-02, Operating Manual

Page: 85 / 238

6 • Operation
Vanquish Pumps (VH-P10-A-02) Operating Manual Page 85
MUTE ALARM
If beeping alerts you that the pump firmware detected a problem, for
example leakage, beeping continues until you turn off the beep. Pressing
this button turns off the beep for the current alarm. As a standard,
beeping starts again after 10 minutes if the problem is still present or if
the firmware detected another problem.
SELECT
Pressing the button selects a pump head. The LEDs next to the button
indicate which pump head is selected, with
L referring to the left pump
head and R referring to the right pump head. The LED is green when the
pump head is selected. Before performing a
Dock
or
Purge
function
from the keypad, select the pump head for which you want to perform
the action.
DOCK
Pressing the button moves the pistons of the selected pump head to the
appropriate position for maintenance procedures, such as pump head or
piston replacement, and undocks the pistons.
When undocking is complete, the LED next to the FLOW button starts
flashing green for the selected pump head. The LED continues flashing
while no pistons are docked. Pressing the button again docks the
pistons.
To avoid damage to the pump, remove or install the pump heads only
while the pistons are undocked (LED is flashing).
PURGE
Pressing the button starts a purge cycle. Pressing the button while a
purge cycle is running stops the cycle.
For more information about purging, see section 6.8, Purging the Pump,
page 98 .
FLOW
Pressing the button starts or stops the flow, considering the selected
flow rate, solvent composition, and flow acceleration/deceleration.