Item Specification
Delivery Pressure
LC-40D X3 CL: 5 to 130 MPa
LC-40D XR CL: 5 to 70 MPa
Pumping Modes
Isocratic, two-solvent high-pressure gradient, two-solvent
low-pressure gradient
The Auto-Diagnostics function may not work in case of a significant pressure
decrease, such as when a large bubble enters the pump head. For this reason,
set the lower pressure limit P.MIN when using the function.
When Auto-Diagnostics is off, change in
the pump pressure is detected and a
delivery status is displayed.
Display Delivery Status
Press Stable Delivery is stable.
Press Dec Left
The pressure of the pump head that is on the left when viewed
from the front is decreasing during discharge.
Press Dec Right
The pressure of the pump head that is on the right when viewed
from the front is decreasing during discharge.
Press Increase The pressure is at least 10 % higher than that 5 minutes ago.
Press Decrease The pressure is at least 10 % lower than that 5 minutes ago.
[Press Increase] and [Press Decrease] are also displayed during normal operation,
such as when the pumps start and stop.
If [Press Dec Right] is displayed, it may indicate one of the following:
• Air remains inside the right pump head.
•
There is a leak in the right pump head's seal.
• The right pump head's inlet check valve or the left pump head's outlet check
valve are not operating properly.
If [Press Dec Left] is displayed, it may indicate that conditions described above
have occurred for the left pump head.
"Turning on/off Auto-Diagnostics《AUTO DIAGNOSTICS》" P.68
n Monitoring Vacuum Pressure in Degassing Unit《DEGAS PRESSURE》
The screen displays the vacuum pressure of
the degassing unit connected to the
instrument.
• [(OK)] is displayed when the vacuum
pressure is at a normal value.
• [(NG)] is displayed when the vacuum pressure is at an abnormal value.
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LC-40D X3 CL LC-40D XR CL
3 Operation
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