Omnium Head

Requisites and considerations

  • For any handling of the FluidFM head, we recommend using clean powder-free gloves (never touch the base of the nose with bare hands!).
  • Each FluidFM Head pack (CYPR/003866) contains five o-rings for the probe side, three o-rings for the head side and one titanium sealing screw.
  • Use only optic-compatible wipes for cleaning (Kim-wipes or similar).
  • For any maintenance activity on the nose, the FluidFM head needs to be removed from the system (see Deinstallation of the head).
  • Do not immerse the FluidFM head into any cleaning solution.
  • When placing back the FluidFM head back to the system, make sure to follow XY-head and Z-height calibration before any other operation.

Deinstallation of the head

  • For safety reasons, a probe adaptor must be gripped on the FluidFM Omnium.
  • Make sure that ARYA software is closed and that the Omnium control unit is powered off.
  1. From the back of the FluidFM Omnium, open the incubator to access the head. Move the head to the highest position (z-axis).
  2. Carefully, take out the pressure tube and the head cable out of the socket by pressing the clips on the sides.
  3. With a 2mm Allen key, unscrew the 2 screws of the head, while keeping the head with one hand.
  4. Carefully, pull up the head and remove it from the system.
  5. Place the head on a flat and clean surface.
  6. Using a T1 screwdriver, lock into the golden gripper and release the probe mounted on the head by rotating the screwdriver vertically down. Remove the probe manually.
    Manual Release

Remove the o-ring (probe side)

  1. With a pair of tweezers, remove the o-ring (probe side one) from the nose.
  2. Carefully and by using tweezers insert a new o-ring in the same position.

Note

Make sure that the replacement o-ring is the one for the probe side.

Exchange sealing screw and o-ring (head side)

  1. Remove the o-ring (probe side) as stated in the previous section.
  2. Carefully, with the micro-torque screwdriver, unscrew the sealing screw in the nose.
  3. With tweezers, remove the now visible second o-ring (head side), located in the opening where the screw was.
  4. Place the new o-ring (head side) with tweezers.
  5. With the micro-torque screwdriver, place the new sealing screw and tightening until it clicks (the screw will be tightened until a maximum of 3.5 N/cm).
  6. Place now a new o-ring (probe side) as stated in the previous section.

Prism cleaning

  1. With a clean Kim-wipe, dipped into the 2% SDS solution, wipe gently the nose (including the metal part) and the tip of the prism. Do not spray any cleaning solution directly on to the nose.
  2. With a new clean wipe and fresh milliQ water, wipe the same area. Repeat this step 2-3 times to make sure that all the SDS has been removed.
  3. With a new clean wipe, clean the same area with isopropanol 70%.
  4. Install the head back to the system and verify that the prism is clean.