This section describes how to connect nanoViperTM capillaries (hereinafter referred to as ViperTM capillaries).

Figure: Viper fitting

The Viper fittings are installed without knurls. If required, you can use the knurls that are included in the ship kit.

NOTICE

  • Tighten or loosen Viper capillaries only with your fingers and the special torque tool. Do not use tools others than those provided by Thermo Fisher Scientific for this purpose. Use the tool only for the connections for which it is intended.
  • To avoid damage to the capillary or connection, tighten and loosen the Viper capillaries only when the system pressure is down to zero.

Tools required

Torque screwdriver including:

  • Base part

  • Extension adapter

  • Viper bit

Follow these steps

NOTICE

Damage to nanoViper fitting

Grasp the torque screwdriver by its base part and hold it straight. Tilting the torque screwdriver results in too much force applied to the nanoViper fitting and may result in damage to the fitting or the torque screwdriver.

  1. Insert the Viper capillary into the connection port.

  2. Tighten the connection with your fingers.

  3. Use the torque screwdriver to tighten the connection further. To access difficult-to-reach capillaries, use the extension adapter.

  4. 123
    Figure: Torque screwdriver

    No.

    Description

    1

    Viper bit

    2

    Extension adapter

    3

    Base part

  5. Tighten the connection until the torque limitation has been reached, which is indicated by a clicking sound.

  6. Check whether the connection leaks. If leakage exists, resolve the leakage.

Resolving Leakage

  1. Remove the capillary.

  2. Clean the capillary ends carefully by using a lint-free tissue wetted with isopropanol.

  3. Reinstall the capillary.

  4. If the connection continues to leak, install a new Viper capillary.