FAQ - Frequently Asked Questions

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Frequently Referenced FAQ

Latest FAQ

FAQ within [ Solvent Delivery Module ]

11-20 of Total 72

≪ 2 / 8page ≫

  • No peaks are output

    Check the column using known analytical conditions. If the column has deteriorated, replace it. Confirm whether the solvent delivery pump is functioning pr... Show Detail

    • No：4292
    • Date of Issue：2020/12/03 10:49
    • Brached FAQ

  • Peak retention times vary

    Pump 2-propanol to rinse the check valve. However, if a buffer solution is being used, rinse the check valve with purified water first. Then rinse it by pump... Show Detail

    • No：4290
    • Date of Issue：2020/12/03 10:43
    • Brached FAQ

  • The rinse solution level for the seal automatic rinsing k...

    Inspect (replace) the diaphragm. Tighten the connection. If the leak persists after tightening the connection, then replace the connection. Show Detail

    • No：4285
    • Date of Issue：2020/12/03 10:31
    • Brached FAQ

  • Pressure increases too high

    Ultrasonically clean or replace the line filter. Use the specified pipe. Inspect the column pressure and replace the column if clogged. Rinse the flow ... Show Detail

    • No：4284
    • Date of Issue：2020/12/03 10:30
    • Brached FAQ

  • Pressure does not increase

    Close the drain valve. Tighten the connection. If the leak persists after tightening the connection, then replace the connection. Click here for "Manual ... Show Detail

    • No：4283
    • Date of Issue：2020/12/03 10:29
    • Brached FAQ

  • Solvent delivery is unstable and pump pulsation is large

    Pump 2-propanol to rinse the check valve. However, if a buffer solution is being used, rinse the check valve with purified water first. Then rinse it by pump... Show Detail

    • No：4282
    • Date of Issue：2020/12/03 10:27
    • Brached FAQ

  • The solvent delivery pump runs, but does not pump solvent

    Add mobile phase. Close the drain valve. Tighten the connection. If the leak persists after tightening the connection, then replace the connection. Cli... Show Detail

    • No：4281
    • Date of Issue：2020/12/03 10:22
    • Brached FAQ

  • No solvent is delivered at all

    Click [PUMP]. [PUMP] is illuminated. Specify the flowrate. Click [CE] and eliminate the cause of the error. Show Detail

    • No：4280
    • Date of Issue：2020/12/03 10:20
    • Brached FAQ

  • Solvent Flow Does Not Stabilize

    Manually purge the flow channels, degas the mobile phase, clean the suction filter, and purge the flow channels. Replace the plunger seal. Check the plunge... Show Detail

    • No：4272
    • Date of Issue：2020/12/03 09:43
    • Brached FAQ

  • The rinse solution volume in the seal automatic rinsing k...

    Is there leakage from the plunger seal? Replace the plunger seal. If the plunger seal service life was extremely short, then also replace the plunger. Show Detail

    • No：4249
    • Date of Issue：2020/12/03 09:24

11-20 of Total 72

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